1
|
Alvarado M, Loo M, Adler H, Arnall C, Amsden K, Martinez G, Navarro R. Synthesis of 3,3-Disubstituted Allyl Isoindolinones via Pd-Catalyzed Decarboxylative Allylic Alkylation. Tetrahedron Lett 2024; 148:155242. [PMID: 39183729 PMCID: PMC11343487 DOI: 10.1016/j.tetlet.2024.155242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/27/2024]
Abstract
Herein, we report a mild palladium-catalyzed decarboxylative allylic alkylation of allyl ester-substituted isoindolinone substrates to afford a variety of 3,3-disubstituted isoindolinone derivatives. The decarboxylative coupling reaction tolerates a range of functional groups, including ketones and alkenyl halides, and does not require protection of the isoindolinone nitrogen. Additionally, the reaction was found to proceed in near-quantitative yield for most substrates evaluated. Based on the isolation of competing cyclopropane and protonation products, a reaction mechanism is proposed.
Collapse
Affiliation(s)
- Mario Alvarado
- Department of Chemistry, Occidental College, Los Angeles, California 90041, United States
| | - Marisa Loo
- Department of Chemistry, Occidental College, Los Angeles, California 90041, United States
| | - Hanna Adler
- Department of Chemistry, Occidental College, Los Angeles, California 90041, United States
| | - Caroline Arnall
- Department of Chemistry, Occidental College, Los Angeles, California 90041, United States
| | - Katharine Amsden
- Department of Chemistry, Occidental College, Los Angeles, California 90041, United States
| | - Gisela Martinez
- Department of Chemistry, Occidental College, Los Angeles, California 90041, United States
| | - Raul Navarro
- Department of Chemistry, Occidental College, Los Angeles, California 90041, United States
| |
Collapse
|
2
|
Yu L, Tang Y, Nie X, Cai Y. Stereoselective Access to Spiro-isoindolinone Scaffolds via Catalytic Asymmetric aza-Piancatelli Rearrangement. Org Lett 2024; 26:7667-7671. [PMID: 39207091 DOI: 10.1021/acs.orglett.4c02799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
A chiral Brønsted acid catalyzed asymmetric aza-Piancatelli rearrangement of 3-furyl-3-hydroxyisoindolinones with anilines has been developed, enabling the divergent construction of chiral spiro-cyclopentenone-isoindolinones in high yields with excellent diastereo- and enantioselectivities even under a low catalyst loading of 0.5 mol%.
Collapse
Affiliation(s)
- Ling Yu
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Yurong Tang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Xukun Nie
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Yunfei Cai
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| |
Collapse
|
3
|
Wang C, Jiang H, Zeng W. Rh(III)-Catalyzed [3 + 3]-Coupling Cyclization of 3-Hydroxyisoindolinones with Carbenoids: Rapid Access to Spirolactam Skeletons. Org Lett 2024; 26:7728-7732. [PMID: 39190531 DOI: 10.1021/acs.orglett.4c02889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/29/2024]
Abstract
A Rh(III)-catalyzed [3 + 3]-coupling cyclization of 3-hydroxy-3-phenylisoindolinone with carbenoids has been developed. The method provides an efficient approach to access polyfunctionalized-spiro[isochromene-1,1'-isoindolin]-3'-ones with good to excellent reaction conversions.
Collapse
Affiliation(s)
- Chengjie Wang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Wei Zeng
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| |
Collapse
|
4
|
Mondal P, Mandal N, Pal AK, Datta A. Computational Insights into Palladium-Catalyzed Site-Selective Anilide and Benzamide-Type [3+2] Annulation via Double C-H Bond Activation. J Org Chem 2024; 89:11371-11379. [PMID: 39072638 DOI: 10.1021/acs.joc.4c01049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
The mechanism of palladium-catalyzed annulation reactions of benzamide- and anilide-type aromatic systems with maleimides is investigated using density functional theory. Double C-H bond activation is key to forming the desired annulation product. The first C-H bond activation for anilide- and amide-type ligands can occur at the ortho and benzylic C-H bonds, while the second C-H activation occurs at the meta carbon of the aromatic rings. For the anilide-type system, ortho and benzylic C-H bond activations occur via four- and five-membered palladacycles, respectively. In contrast, for the benzamide-type system, ortho and benzylic C-H bond activations occur via five- and six-membered palladacycles, respectively. The energy span model suggests that the initial C-H bond activation step at the benzylic position determines the turnover frequency for both anilide- and benzamide-type systems. Energy decomposition analysis and distortion-interaction/activation-strain analyses are employed to understand the electronic and steric factors controlling the turnover frequency-determining transition state.
Collapse
Affiliation(s)
- Partha Mondal
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur 700032, West Bengal, India
| | - Nilangshu Mandal
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur 700032, West Bengal, India
| | - Arun K Pal
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur 700032, West Bengal, India
| | - Ayan Datta
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur 700032, West Bengal, India
| |
Collapse
|
5
|
Xie JQ, Wang BX, Liang RX, Jia YX. Copper-catalyzed asymmetric 1,2-arylboration of enamines: access to chiral borate-containing 3,3'-disubstituted isoindolinones. Org Biomol Chem 2024. [PMID: 39005048 DOI: 10.1039/d4ob00896k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/16/2024]
Abstract
An enantioselective copper-catalyzed 1,2-arylboration reaction of enamines has been developed by employing (R)-xyl-BINAP as a chiral ligand. A number of chiral borate-containing 3,3'-disubstituted isoindolinones were obtained in moderate to good yields and good to excellent enantioselectivities from the reactions of N-(o-iodobenzoyl)enamines and bis(pinacolato)diboron (B2pin2) under mild reaction conditions. Synthetic transformations of the products were conducted to demonstrate the practicality of this reaction.
Collapse
Affiliation(s)
- Jia-Qi Xie
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China.
| | - Bing-Xia Wang
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China.
| | - Ren-Xiao Liang
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China.
| | - Yi-Xia Jia
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China.
- School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, China
| |
Collapse
|
6
|
Cong X, Zhuo Q, Hao N, Mishra A, Nishiura M, Hou Z. Divergent Synthesis of Multi-Substituted Aminotetralins via [4+2] Annulation of Aldimines with Alkenes by Rare-Earth-Catalyzed Benzylic C(sp 3 )-H Activation. Angew Chem Int Ed Engl 2024; 63:e202318203. [PMID: 38226440 DOI: 10.1002/anie.202318203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/12/2024] [Accepted: 01/15/2024] [Indexed: 01/17/2024]
Abstract
The search for efficient and selective methods for the divergent synthesis of multi-substituted aminotetralins is of much interest and importance. We report herein for the first time the diastereoselective [4+2] annulation of 2-methyl aromatic aldimines with alkenes via benzylic C(sp3 )-H activation by half-sandwich rare-earth catalysts, which constitutes an efficient route for the divergent synthesis of both trans and cis diastereoisomers of multi-substituted 1-aminotetralin derivatives from readily accessible aldimines and alkenes. The use of a scandium catalyst bearing a sterically demanding cyclopentadienyl ligand such as C5 Me4 SiMe3 or C5 Me5 exclusively afforded the trans-selective annulation products in the reaction of aldimines with styrenes and aliphatic alkenes. In contrast, the analogous yttrium catalyst, whose metal ion size is larger than that of scandium, yielded the cis-selective annulation products. This protocol features 100 % atom-efficiency, excellent diastereoselectivity, broad substrate scope, and good functional group compatibility. The reaction mechanisms have been elucidated by kinetic isotope effect (KIE) experiments and the isolation and transformations of some key reaction intermediates.
Collapse
Affiliation(s)
- Xuefeng Cong
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Qingde Zhuo
- Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Na Hao
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Aniket Mishra
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Masayoshi Nishiura
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Zhaomin Hou
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| |
Collapse
|
7
|
Wang J, Yang Y, Liu C, Zhang D. Theoretical Insight into the Palladium-Catalyzed Prenylation and Geranylation of Oxindoles with Isoprene. Inorg Chem 2024; 63:4855-4866. [PMID: 38447568 DOI: 10.1021/acs.inorgchem.3c03637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
This work presents a comprehensive mechanistic study of the ligand-controlled palladium-catalyzed prenylation (with C5 added) and geranylation (with C10 added) reactions of oxindole with isoprene. The calculated results indicate that the prenylation with the bis-phosphine ligand and geranylation with the monophosphine ligand fundamentally share a common mechanism. This mechanism involves the formation of two crucial species: a η3-allyl-Pd(II) cation and an oxindole carbon anion. Furthermore, the reactions necessitate the assistance of a second oxindole molecule, which serves as a Brønsted acid, providing a proton to generate the oxindole nitrogen anion. The oxindole nitrogen anion then acts as a Brønsted base, abstracting a C-H proton from another oxindole molecule to form an oxindole carbon anion. These mechanistic details differ significantly from those proposed in the experimental work. The present calculations do not support the presence of the Pd-H species and the η3, η3-diallyl-Pd(II) intermediate, which were previously suggested in experiments. The theoretical results rationalize the experimental finding that the bis-phosphine ligand favors the prenylation of oxindole, while the monophosphine ligand enables the geranylation of oxindole.
Collapse
Affiliation(s)
- Jinzhao Wang
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, Institute of Theoretical Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Yiying Yang
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, Institute of Theoretical Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Chengbu Liu
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, Institute of Theoretical Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Dongju Zhang
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, Institute of Theoretical Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| |
Collapse
|
8
|
Wang L, Wang Y, Wu S, Yan CG, Zhang C, Zhang J, Han Y. Enantioselective Synthesis of Isoindolinone by Palladium-Catalyzed Aminoalkynylation of O-Phenyl Hydroxamic Ethers with Alkynes. J Am Chem Soc 2024; 146:4320-4326. [PMID: 38335536 DOI: 10.1021/jacs.3c12996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2024]
Abstract
A highly efficient palladium-catalyzed asymmetric tandem aza-Heck/Sonogashira coupling reaction of O-phenyl hydroxamic ethers with terminal alkynes is described. This protocol enables versatile access to challenging chiral isoindolinone derivatives bearing a quaternary stereogenic center. The palladium-catalyzed aminoalkynylation reaction shows broad functional group tolerance and allows the straightforward preparation of isoindolinones with high efficiency and excellent enantioselectivity under mild conditions. DFT calculations were performed to disclose the reaction mechanism and the origins of the enantioselectivity.
Collapse
Affiliation(s)
- Lei Wang
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Yinqiang Wang
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Shuaijie Wu
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Chao-Guo Yan
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Chaoshen Zhang
- Department of Chemistry. The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR 999077, China
| | - Junliang Zhang
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, P. R. China
| | - Ying Han
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| |
Collapse
|
9
|
Yus M, Nájera C, Foubelo F, Sansano JM. Metal-Catalyzed Enantioconvergent Transformations. Chem Rev 2023; 123:11817-11893. [PMID: 37793021 PMCID: PMC10603790 DOI: 10.1021/acs.chemrev.3c00059] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Indexed: 10/06/2023]
Abstract
Enantioconvergent catalysis has expanded asymmetric synthesis to new methodologies able to convert racemic compounds into a single enantiomer. This review covers recent advances in transition-metal-catalyzed transformations, such as radical-based cross-coupling of racemic alkyl electrophiles with nucleophiles or racemic alkylmetals with electrophiles and reductive cross-coupling of two electrophiles mainly under Ni/bis(oxazoline) catalysis. C-H functionalization of racemic electrophiles or nucleophiles can be performed in an enantioconvergent manner. Hydroalkylation of alkenes, allenes, and acetylenes is an alternative to cross-coupling reactions. Hydrogen autotransfer has been applied to amination of racemic alcohols and C-C bond forming reactions (Guerbet reaction). Other metal-catalyzed reactions involve addition of racemic allylic systems to carbonyl compounds, propargylation of alcohols and phenols, amination of racemic 3-bromooxindoles, allenylation of carbonyl compounds with racemic allenolates or propargyl bromides, and hydroxylation of racemic 1,3-dicarbonyl compounds.
Collapse
Affiliation(s)
- Miguel Yus
- Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Alicante, Apdo. 99, E-03080 Alicante, Spain
| | - Carmen Nájera
- Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Alicante, Apdo. 99, E-03080 Alicante, Spain
| | - Francisco Foubelo
- Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Alicante, Apdo. 99, E-03080 Alicante, Spain
- Departamento
de Química Orgánica and Instituto de Síntesis
Orgánica (ISO), Universidad de Alicante, Apdo. 99, E-03080 Alicante, Spain
| | - José M. Sansano
- Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Alicante, Apdo. 99, E-03080 Alicante, Spain
- Departamento
de Química Orgánica and Instituto de Síntesis
Orgánica (ISO), Universidad de Alicante, Apdo. 99, E-03080 Alicante, Spain
| |
Collapse
|
10
|
Li X, Song H, Yu S, Mi R, Li XX. Rhodium-Catalyzed Enantioselective 1,4-Oxyamination of Conjugated gem-Difluorodienes via Coupling with Carboxylic Acids and Dioxazolones. Angew Chem Int Ed Engl 2023; 62:e202305669. [PMID: 37357836 DOI: 10.1002/anie.202305669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 06/21/2023] [Accepted: 06/26/2023] [Indexed: 06/27/2023]
Abstract
The incorporation of fluorine atoms in organics improves their bioactivity and lipophilicity. Catalytic functionalization of gem-difluorodienes represents one of the most straightforward approaches to access fluorinated alkenes. In contrast to the regular 1,3-dienes that undergo diverse asymmetric di/hydrofunctionalizations, the regio- and enantioselective oxyamination of gem-difluorodienes remains untouched. Herein, we report asymmetric 1,4-oxyamination of gem-difluorodiene by chiral rhodium-catalyzed three-component coupling with readily available carboxylic acid and dioxazolone, affording gem-difluorinated 1,4-amino alcohol derivatives. Our asymmetric protocol exhibits high 1,4-regio- and enantioselectivity with utility in the late-stage modification of pharmaceuticals and natural products. Stoichiometric experiments provide evidences for the π-allylrhodium pathway. Related oxyamination was also realized when trifluoroethanol was used as an oxygen nucleophile.
Collapse
Affiliation(s)
- Xingwei Li
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, Shandong 266237, China
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, China
| | - Heng Song
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, Shandong 266237, China
| | - Songjie Yu
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, Shandong 266237, China
| | - Ruijie Mi
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, Shandong 266237, China
| | - Xiao-Xi Li
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, Shandong 266237, China
| |
Collapse
|
11
|
Mishra A, Cong X, Nishiura M, Hou Z. Enantioselective Synthesis of 1-Aminoindanes via [3 + 2] Annulation of Aldimines with Alkenes by Scandium-Catalyzed C-H Activation. J Am Chem Soc 2023; 145:17468-17477. [PMID: 37504799 DOI: 10.1021/jacs.3c06482] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
Multisubstituted chiral 1-aminoindanes are important components in many pharmaceuticals and bioactive molecules. Therefore, the development of efficient and selective methods for the synthesis of chiral 1-aminoindanes is of great interest and importance. In principle, the asymmetric [3 + 2] annulation of aldimines with alkenes through C-H activation is the most atom-efficient and straightforward route for the construction of chiral 1-aminoindanes, but such a transformation has remained undeveloped to date probably due to the lack of suitable catalysts. Herein, we report for the first time the enantioselective [3 + 2] annulation of a wide range of aromatic aldimines and alkenes via ortho-C(sp2)-H activation by chiral half-sandwich scandium catalysts, which provides a straightforward route for the synthesis of multisubstituted chiral 1-aminoindanes. This protocol features 100% atom-efficiency, broad functional group compatibility, and high regio-, diastereo-, and enantioselectivity (up to >19:1 dr and 99:1 er). Remarkably, by fine-tuning the sterics of the chiral ligand around the catalyst metal center, the diastereodivergent asymmetric [3 + 2] annulation of aldimines and styrenes has been achieved with a high level of diastereo- and enantioselectivity, offering an efficient method for the synthesis of both the trans and cis diastereomers of a novel class of chiral 1-aminoindane derivatives containing two contiguous stereocenters from the same set of starting materials. Moreover, the asymmetric [3 + 2] annulation of aldimines with aliphatic α-olefins, norbornene, and 1,3-dienes has also been achieved.
Collapse
Affiliation(s)
- Aniket Mishra
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, Wako, Saitama 351-0198, Japan
| | - Xuefeng Cong
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, Wako, Saitama 351-0198, Japan
| | - Masayoshi Nishiura
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, Wako, Saitama 351-0198, Japan
- Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, Wako, Saitama 351-0198, Japan
| | - Zhaomin Hou
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, Wako, Saitama 351-0198, Japan
- Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, Wako, Saitama 351-0198, Japan
| |
Collapse
|
12
|
Nagesh K, Manda J, Sridhar B, Subba Reddy BV. Rh(III)-catalyzed [3 + 2] spiroannulation of 2,3-dihydro-1,4-benzoxazines with 4-hydroxy-2-alkynoates through ortho-C-H bond functionalization. Org Biomol Chem 2023. [PMID: 37464919 DOI: 10.1039/d3ob00786c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
Rhodium(III)-catalyzed [3 + 2]-spiroannulation of 2-aryl-1,4-benzoxazines with 4-hydroxy-2-alkynoates has been developed for the synthesis of highly rigid spirolactones in good yields with high regioselectivity. The reaction proceeds through a cascade of C-H activation followed by C-H annulation and lactonization. In this approach, two C-C and C-O bonds are formed in a single step. This is the first report on the spiroannulation of 2,3-dihydro-1,4-benzoxazines with 4-hydroxy-2-alkynoates.
Collapse
Affiliation(s)
- Kommu Nagesh
- Fluoro-Agrochemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Jagadish Manda
- Fluoro-Agrochemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - B Sridhar
- Laboratory of X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
| | - B V Subba Reddy
- Fluoro-Agrochemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| |
Collapse
|
13
|
Brześkiewicz J, Loska R. Synthesis of Isoindole N-Oxides by Palladium-Catalyzed C-H Functionalization of Aldonitrones. J Org Chem 2023; 88:2385-2392. [PMID: 36704962 DOI: 10.1021/acs.joc.2c02797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
A palladium-catalyzed strategy for isoindole N-oxide ring construction by C-H functionalization of aldonitrones is described. Our protocol is of general character, providing isoindole N-oxides with a variety of functional groups, including very sterically congested products. Further transformations into spirocyclic isoindolines, isoindoles, or a polycyclic isoquinolinium salt have been demonstrated as well. A mechanistic study suggests that the catalytic process proceeds via a Heck-type addition to the double C═N bond.
Collapse
Affiliation(s)
- Jakub Brześkiewicz
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warsaw 01-224, Poland
| | - Rafał Loska
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warsaw 01-224, Poland
| |
Collapse
|
14
|
Zhao X, Fan C, He J, Luo Y. Rh-Catalyzed [3+2] Annulation of Cyclic Ketimines and Alkynyl Chloride: A Strategy for Accessing Unsymmetrically Substituted and Highly Functionalizable Indenes. Org Lett 2022; 24:9169-9173. [PMID: 36503272 PMCID: PMC9791992 DOI: 10.1021/acs.orglett.2c02717] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Alkynyl chlorides were found to be extraordinarily novel electrophiles, which could afford a single regioisomer of the [3+2] annulation adducts with cyclic ketimines by rhodium catalysis. The alkenyl chloride moiety in the products provided a valuable functional handle for further diverse transformations. Therefore, this research provided not only a synthetic protocol for accessing unsymmetrically substituted indenyl amines but also a highly divergent solution for decorating the substituting group by postmanipulation of the chloride.
Collapse
Affiliation(s)
- Xu Zhao
- Anhui
Province Key Laboratory of Advanced Catalytic Materials and Reaction
Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Chenrui Fan
- Anhui
Province Key Laboratory of Advanced Catalytic Materials and Reaction
Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China,School
of Material Science and Engineering, Hefei
University of Technology, Hefei 230009, China
| | - Jianbo He
- Anhui
Province Key Laboratory of Advanced Catalytic Materials and Reaction
Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China,School
of Material Science and Engineering, Hefei
University of Technology, Hefei 230009, China
| | - Yunfei Luo
- Anhui
Province Key Laboratory of Advanced Catalytic Materials and Reaction
Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China,
| |
Collapse
|
15
|
Phukon J, Jyoti Borah A, Gogoi S. Transition‐Metal‐Catalyzed Synthesis of Spiro Compounds through Activation and Cleavage of C−H Bonds. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Jyotshna Phukon
- Applied Organic Chemistry Chemical Sciences & Technology Division CSIR-North East Institute of Science and Technology Jorhat 785006, Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Arun Jyoti Borah
- Department of Chemistry Gauhati University Guwahati 781014 India
| | - Sanjib Gogoi
- Applied Organic Chemistry Chemical Sciences & Technology Division CSIR-North East Institute of Science and Technology Jorhat 785006, Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| |
Collapse
|
16
|
Abstract
Asymmetric catalysis has emerged as a general and powerful approach for constructing chiral compounds in an enantioselective manner. Hence, developing novel chiral ligands and catalysts that can effectively induce asymmetry in reactions is crucial in modern chemical synthesis. Among such chiral ligands and catalysts, chiral dienes and their metal complexes have received increased attention, and a great progress has been made over the past two decades. This review provides comprehensive and critical information on the essential aspects of chiral diene ligands and their importance in asymmetric catalysis. The literature covered ranges from August 2003 (when the first effective chiral diene ligand for asymmetric catalysis was reported) to October 2021. This review is divided into two parts. In the first part, the chiral diene ligands are categorized according to their structures, and their preparation methods are summarized. In the second part, their applications in asymmetric transformations are presented according to the reaction types.
Collapse
Affiliation(s)
- Yinhua Huang
- College of Materials, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Tamio Hayashi
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan
| |
Collapse
|
17
|
Sun X, Lin EZ, Li BJ. Iridium-Catalyzed Branch-Selective and Enantioselective Hydroalkenylation of α-Olefins through C-H Cleavage of Enamides. J Am Chem Soc 2022; 144:17351-17358. [PMID: 36121772 DOI: 10.1021/jacs.2c07477] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Catalytic branch-selective hydrofunctionalization of feedstock α-olefins to form enantioenriched chiral compounds is a particularly attractive yet challenging transformation in asymmetric catalysis. Herein we report an iridium-catalyzed asymmetric hydroalkenylation of α-olefins through directed C-H cleavage of enamides. This atom-economical addition process is highly branch-selective and enantioselective, delivering trisubstituted alkenes with an allylic stereocenter. DFT calculations reveal the origin of regio- and enantioselectivity.
Collapse
Affiliation(s)
- Xin Sun
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - En-Ze Lin
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Bi-Jie Li
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China.,Beijing National Laboratory for Molecular Sciences, Beijing 100190, China
| |
Collapse
|
18
|
Bhosale VA, Císařová I, Kamlar M, Veselý J. Catalytic asymmetric addition to cyclic N-acyl-iminium: access to sulfone-bearing contiguous quaternary stereocenters. Chem Commun (Camb) 2022; 58:9942-9945. [PMID: 35983733 DOI: 10.1039/d2cc02667h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we report the first chiral phosphoric acid (CPA)-catalyzed asymmetric addition of α-fluoro(phenylsulfonyl)methane (FSM) derivatives to in situ generated cyclic N-acyliminium. This process enables metal-free expeditious access to sulfone and fluorine incorporating contiguous all substituted quaternary stereocenters ingrained in biorelevant isoindolinones in excellent stereoselectivities (up to 99% ee and up to 50 : 1 dr).
Collapse
Affiliation(s)
- Viraj A Bhosale
- Department of Organic Chemistry, Faculty of Science, Charles University, 128 43 Prague, Czech Republic.
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University, 128 43 Prague, Czech Republic
| | - Martin Kamlar
- Department of Organic Chemistry, Faculty of Science, Charles University, 128 43 Prague, Czech Republic.
| | - Jan Veselý
- Department of Organic Chemistry, Faculty of Science, Charles University, 128 43 Prague, Czech Republic.
| |
Collapse
|
19
|
|
20
|
Mardjan MID, Hariadi MF, Putri IM, Musyarrofah NA, Salimah M, Priatmoko, Purwono B, Commeiras L. Ultrasonic-assisted-synthesis of isoindolin-1-one derivatives. RSC Adv 2022; 12:19016-19021. [PMID: 35873335 PMCID: PMC9241359 DOI: 10.1039/d2ra02720h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 06/15/2022] [Indexed: 11/21/2022] Open
Abstract
A small library of 3-hydroxyisoindolin-1-ones has been prepared from 3-alkylidenephtalides under ultrasonic irradiation. This practical synthesis is featured by group tolerance, high efficiency and yields. The reaction can also be performed in multigram scale and be further extended to access other motifs of isoindolin-1-ones in a one-pot fashion. Functionalized isoindolin-1-ones have been prepared in short reaction time and excellent yields from 3-alkylidenephtalides and primary amines under ultrasonic irradiation.![]()
Collapse
Affiliation(s)
- Muhammad Idham Darussalam Mardjan
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada Bulaksumur POS BLS 21 Yogyakarta 55281 Indonesia
| | - Muhamad Fadhly Hariadi
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada Bulaksumur POS BLS 21 Yogyakarta 55281 Indonesia
| | - Indah Mutiara Putri
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada Bulaksumur POS BLS 21 Yogyakarta 55281 Indonesia
| | - Nilna Amalia Musyarrofah
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada Bulaksumur POS BLS 21 Yogyakarta 55281 Indonesia
| | - Muflihah Salimah
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada Bulaksumur POS BLS 21 Yogyakarta 55281 Indonesia
| | - Priatmoko
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada Bulaksumur POS BLS 21 Yogyakarta 55281 Indonesia
| | - Bambang Purwono
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada Bulaksumur POS BLS 21 Yogyakarta 55281 Indonesia
| | - Laurent Commeiras
- Aix Marseille Univ., CNRS, Centrale Marseille, iSm2 Marseille 13013 France
| |
Collapse
|
21
|
Guo F, Wang H, Ye X, Tan CH. Advanced Synthesis Using Photocatalysis Involved Dual Catalytic System. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Fenfen Guo
- Zhejiang University of Technology College of Pharmaceutical Science CHINA
| | - Hong Wang
- Zhejiang University of Technology College of Pharmaceutical Science CHINA
| | - Xinyi Ye
- Zhejiang University of Technology College of Pharmaceutical Science 18 Chaowang Road 310014 Hangzhou CHINA
| | - Choon-Hong Tan
- Nanyang Technological University School of Physical and Mathematical Sciences SINGAPORE
| |
Collapse
|
22
|
Zhang JJ, Zhang M, Lu M, He Y, Li S, Fan L, Zhang X, Wu JK, Yang X. Synthesis of spiropyrans via the Rh(III)-catalyzed annulation of 3-aryl-2 H-benzo[ b][1,4]oxazines with diazo ketoesters. Chem Commun (Camb) 2022; 58:5144-5147. [PMID: 35383796 DOI: 10.1039/d2cc00916a] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Rh(III)-Catalyzed 1 : 2 coupling of 3-aryl-2H-benzo[b][1,4]oxazines with α-diazo-β-ketoesters has been realized for the mild synthesis of spiropyrans. The reaction proceeded via twofold C-H activation followed by unusual [3+3] and [4+2] annulation with decent functional group tolerance. Moreover, a pyranoid-skeleton intermediate was isolated as a key intermediate as a result of monoalkylation and enol oxygen annulation, which offers direct mechanistic insight.
Collapse
Affiliation(s)
- Jing Jing Zhang
- Institute of Pesticide, College of Plant Protection, Henan Agricultural University, Zhengzhou, 450002, China.
| | - Mengying Zhang
- Institute of Pesticide, College of Plant Protection, Henan Agricultural University, Zhengzhou, 450002, China.
| | - Mingxin Lu
- Institute of Pesticide, College of Plant Protection, Henan Agricultural University, Zhengzhou, 450002, China.
| | - Yuhao He
- Institute of Pesticide, College of Plant Protection, Henan Agricultural University, Zhengzhou, 450002, China.
| | - Song Li
- Institute of Pesticide, College of Plant Protection, Henan Agricultural University, Zhengzhou, 450002, China.
| | - Liangxin Fan
- College of Sciences, Henan Agricultural University, Zhengzhou 450002, China
| | - Xinle Zhang
- Institute of Pesticide, College of Plant Protection, Henan Agricultural University, Zhengzhou, 450002, China.
| | - Jia-Kai Wu
- Institute of Pesticide, College of Plant Protection, Henan Agricultural University, Zhengzhou, 450002, China.
| | - Xifa Yang
- Institute of Pesticide, College of Plant Protection, Henan Agricultural University, Zhengzhou, 450002, China.
| |
Collapse
|
23
|
Hu H, Li BS, Xu JL, Sun W, Wang Y, Sun M. Rh(III)-Catalyzed spiroannulation of ketimines with cyclopropenones via sequential C-H/C-C bond activation. Chem Commun (Camb) 2022; 58:4743-4746. [PMID: 35323830 DOI: 10.1039/d2cc00421f] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An unprecedented Rh(III)-catalyzed [3+3]-spiroannulation of ketimines with cyclopropenones to access spiro[4,5]dienones has been developed. Sequential C-H/C-C bond activation and subsequent nucleophilic addition are disclosed in this process. This procedure represents the first example of the construction of spirolactams utilising cyclopropenones as 3C synthons. The remarkable advantages of this protocol are excellent chemo- and regio-selectivity, wide functional group tolerance, high reaction yields, and tolerance towards H2O.
Collapse
Affiliation(s)
- Hong Hu
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, China.
| | - Bin-Shi Li
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, China.
| | - Jing-Lei Xu
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, China.
| | - Wei Sun
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, China.
| | - Yong Wang
- BGI-Shenzhen, Shenzhen 518083, China.
| | - Meng Sun
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, China. .,State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| |
Collapse
|
24
|
Cong X, Zhuo Q, Hao N, Mo Z, Zhan G, Nishiura M, Hou Z. Regio‐ and Diastereoselective [3+2] Annulation of Aliphatic Aldimines with Alkenes by Scandium‐Catalyzed β‐C(sp
3
)−H Activation. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202115996] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Xuefeng Cong
- Advanced Catalysis Research Group RIKEN Center for Sustainable Resource Science 2-1 Hirosawa Wako, Saitama 351-0198 Japan
| | - Qingde Zhuo
- Organometallic Chemistry Laboratory RIKEN Cluster for Pioneering Research 2-1 Hirosawa Wako, Saitama 351-0198 Japan
| | - Na Hao
- Advanced Catalysis Research Group RIKEN Center for Sustainable Resource Science 2-1 Hirosawa Wako, Saitama 351-0198 Japan
| | - Zhenbo Mo
- Organometallic Chemistry Laboratory RIKEN Cluster for Pioneering Research 2-1 Hirosawa Wako, Saitama 351-0198 Japan
| | - Gu Zhan
- Organometallic Chemistry Laboratory RIKEN Cluster for Pioneering Research 2-1 Hirosawa Wako, Saitama 351-0198 Japan
| | - Masayoshi Nishiura
- Advanced Catalysis Research Group RIKEN Center for Sustainable Resource Science 2-1 Hirosawa Wako, Saitama 351-0198 Japan
- Organometallic Chemistry Laboratory RIKEN Cluster for Pioneering Research 2-1 Hirosawa Wako, Saitama 351-0198 Japan
| | - Zhaomin Hou
- Advanced Catalysis Research Group RIKEN Center for Sustainable Resource Science 2-1 Hirosawa Wako, Saitama 351-0198 Japan
- Organometallic Chemistry Laboratory RIKEN Cluster for Pioneering Research 2-1 Hirosawa Wako, Saitama 351-0198 Japan
| |
Collapse
|
25
|
Sindhe H, Chaudhary B, Chowdhury N, Kamble A, Kumar V, Lad A, Sharma S. Recent advances in transition-metal catalyzed directed C–H functionalization with fluorinated building blocks. Org Chem Front 2022. [DOI: 10.1039/d1qo01544c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review focuses on the advances in transition-metal catalyzed reactions with fluorinated building blocks via directed C–H bond activation for the construction of diverse organic molecules with an insight into the probable mechanistic pathway.
Collapse
Affiliation(s)
- Haritha Sindhe
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Ahmedabad (NIPER-A), Gandhinagar, Gujarat-382355, India
| | - Bharatkumar Chaudhary
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Ahmedabad (NIPER-A), Gandhinagar, Gujarat-382355, India
| | - Neelanjan Chowdhury
- Department of Natural Products, National Institute of Pharmaceutical Education and Research, Ahmedabad (NIPER-A), Gandhinagar, Gujarat-382355, India
| | - Akshay Kamble
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Ahmedabad (NIPER-A), Gandhinagar, Gujarat-382355, India
| | - Vivek Kumar
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Ahmedabad (NIPER-A), Gandhinagar, Gujarat-382355, India
| | - Aishwarya Lad
- Department of Natural Products, National Institute of Pharmaceutical Education and Research, Ahmedabad (NIPER-A), Gandhinagar, Gujarat-382355, India
| | - Satyasheel Sharma
- Department of Natural Products, National Institute of Pharmaceutical Education and Research, Ahmedabad (NIPER-A), Gandhinagar, Gujarat-382355, India
| |
Collapse
|
26
|
Cong X, Zhuo Q, Hao N, Mo Z, Zhan G, Nishiura M, Hou Z. Regio- and Diastereoselective [3+2] Annulation of Aliphatic Aldimines with Alkenes by Scandium-Catalyzed β-C(sp 3 )-H Activation. Angew Chem Int Ed Engl 2021; 61:e202115996. [PMID: 34913239 DOI: 10.1002/anie.202115996] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Indexed: 12/13/2022]
Abstract
Here we report for the first time the regio- and diastereoselective [3+2] annulation of a wide range of aliphatic aldimines with alkenes via the activation of an unactivated β-C(sp3 )-H bond by half-sandwich scandium catalysts. This protocol offers a straightforward and atom-efficient route for the synthesis of a new family of multi-substituted aminocyclopentane derivatives from easily accessible aliphatic aldimines and alkenes. The annulation of aldimines with styrenes exclusively afforded the 5-aryl-trans-substituted 1-aminocyclopentane derivatives with excellent diastereoselectivity through the 2,1-insertion of a styrene unit. The annulation of aldimines with aliphatic alkenes selectively gave the 4-alkyl-trans-substituted 1-aminocyclopentane products in a 1,2-insertion fashion. A catalytic amount of an appropriate amine such as adamantylamine (AdNH2 ) or dibenzylamine (Bn2 NH) showed significant effects on the catalyst activity and stereoselectivity.
Collapse
Affiliation(s)
- Xuefeng Cong
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Qingde Zhuo
- Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Na Hao
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Zhenbo Mo
- Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Gu Zhan
- Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Masayoshi Nishiura
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan.,Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Zhaomin Hou
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan.,Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| |
Collapse
|
27
|
Zhang Q, Wu LS, Shi BF. Forging C−heteroatom bonds by transition metal-catalyzed enantioselective C–H functionalization. Chem 2021. [DOI: 10.1016/j.chempr.2021.11.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
|
28
|
Wang F, Jing J, Zhao Y, Zhu X, Zhang XP, Zhao L, Hu P, Deng WQ, Li X. Rhodium-Catalyzed C-H Activation-Based Construction of Axially and Centrally Chiral Indenes through Two Discrete Insertions. Angew Chem Int Ed Engl 2021; 60:16628-16633. [PMID: 34008279 DOI: 10.1002/anie.202105093] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Indexed: 12/20/2022]
Abstract
Reported herein is asymmetric [3+2] annulation of arylnitrones with different classes of alkynes catalyzed by chiral rhodium(III) complexes, with the nitrone acting as an electrophilic directing group. Three classes of chiral indenes/indenones have been effectively constructed, depending on the nature of the substrates. The coupling system features mild reaction conditions, excellent enantioselectivity, and high atom-economy. In particular, the coupling of N-benzylnitrones and different classes of sterically hindered alkynes afforded C-C or C-N atropochiral pentatomic biaryls with a C-centered point-chirality in excellent enantio- and diastereoselectivity (45 examples, average 95.6 % ee). These chiral center and axis are disposed in a distal fashion and they are constructed via two distinct migratory insertions that are stereo-determining and are under catalyst control.
Collapse
Affiliation(s)
- Fen Wang
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi'an, 710062, China
| | - Jierui Jing
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi'an, 710062, China
| | - Yanliang Zhao
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Sciences, Shandong University, Qingdao, 266237, China
| | - Xiaohan Zhu
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi'an, 710062, China
| | - Xue-Peng Zhang
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi'an, 710062, China
| | - Liujie Zhao
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi'an, 710062, China
| | - Panjie Hu
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi'an, 710062, China
| | - Wei-Qiao Deng
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Sciences, Shandong University, Qingdao, 266237, China
| | - Xingwei Li
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi'an, 710062, China.,Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Sciences, Shandong University, Qingdao, 266237, China
| |
Collapse
|
29
|
Chen L, Zou Y. Recent Advances in the Direct Functionalization of Isoindolinones for the Synthesis of 3,3‐Disubstituted Isoindolinones. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100522] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Long Chen
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy Chengdu University 2025 Chengluo Avenue Chengdu 610016 People's Republic of China
| | - Yun‐Xiang Zou
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy Chengdu University 2025 Chengluo Avenue Chengdu 610016 People's Republic of China
| |
Collapse
|
30
|
Li XH, Gong JF, Song MP. Diastereoselective synthesis of chiral 3-substituted isoindolinones via rhodium(III)-catalyzed oxidative C-H olefination/annulation. Org Biomol Chem 2021; 19:5876-5887. [PMID: 34126629 DOI: 10.1039/d1ob00656h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A new method for the direct and stereoselective synthesis of 3-substituted isoindolinones via Rh(iii)-catalyzed chiral N-sulfinyl amide directed asymmetric [4 + 1] annulation of benzamides with acrylic esters has been developed. The reaction proceeded through an oxidative C-H olefination and a subsequent cyclization by intramolecular aza-Michael addition, producing a series of diastereoisomeric chiral isoindolinones (20 examples) in generally good yields with a dr value up to 5.5 : 1. The absolute configurations of the newly formed C-stereocenters in the major and minor diastereomers of the catalysis product have been determined by X-ray crystal diffraction analysis to be S and R, respectively. The separation of the major diastereoisomers from the catalysis products and subsequent removal of the N-sulfinyl chiral auxiliary afforded enantiomerically pure (S)-isoindolinones. The application of the obtained (S)-isoindolinones in the synthesis of several biologically active isoindolinones such as (S)-PD172938, (S)-pazinaclone and (S)-pagoclone is presented.
Collapse
Affiliation(s)
- Xue-Hong Li
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, People's Republic of China.
| | - Jun-Fang Gong
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, People's Republic of China.
| | - Mao-Ping Song
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, People's Republic of China.
| |
Collapse
|
31
|
Wang F, Jing J, Zhao Y, Zhu X, Zhang X, Zhao L, Hu P, Deng W, Li X. Rhodium‐Catalyzed C−H Activation‐Based Construction of Axially and Centrally Chiral Indenes through Two Discrete Insertions. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202105093] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Fen Wang
- School of Chemistry and Chemical Engineering Shaanxi Normal University (SNNU) Xi'an 710062 China
| | - Jierui Jing
- School of Chemistry and Chemical Engineering Shaanxi Normal University (SNNU) Xi'an 710062 China
| | - Yanliang Zhao
- Institute of Molecular Sciences and Engineering Institute of Frontier and Interdisciplinary Sciences Shandong University Qingdao 266237 China
| | - Xiaohan Zhu
- School of Chemistry and Chemical Engineering Shaanxi Normal University (SNNU) Xi'an 710062 China
| | - Xue‐Peng Zhang
- School of Chemistry and Chemical Engineering Shaanxi Normal University (SNNU) Xi'an 710062 China
| | - Liujie Zhao
- School of Chemistry and Chemical Engineering Shaanxi Normal University (SNNU) Xi'an 710062 China
| | - Panjie Hu
- School of Chemistry and Chemical Engineering Shaanxi Normal University (SNNU) Xi'an 710062 China
| | - Wei‐Qiao Deng
- Institute of Molecular Sciences and Engineering Institute of Frontier and Interdisciplinary Sciences Shandong University Qingdao 266237 China
| | - Xingwei Li
- School of Chemistry and Chemical Engineering Shaanxi Normal University (SNNU) Xi'an 710062 China
- Institute of Molecular Sciences and Engineering Institute of Frontier and Interdisciplinary Sciences Shandong University Qingdao 266237 China
| |
Collapse
|
32
|
Nishimura T. Iridium-Catalyzed Hydroarylation via C-H Bond Activation. CHEM REC 2021; 21:3532-3545. [PMID: 34101981 DOI: 10.1002/tcr.202100109] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/15/2021] [Indexed: 01/02/2023]
Abstract
Hydroarylation reactions via C-H activation, which compensate for shortcomings of classical methods based on the Friedel-Crafts reaction, is one of the most attractive methods to synthesize substituted arenes. This Personal Account reviews our recent studies on iridium-catalyzed intermolecular hydroarylation of vinyl ethers, alkynes, bicycloalkenes, and 1,3-dienes, and intramolecular hydroarylation of m-allyloxyphenyl ketones, where asymmetric addition reactions are included. A cationic iridium catalyst, which is generated from chloroiridium [IrCl] and NaBArF 4 [ArF =3,5-(CF3 )2 C6 H3 ], or a hydroxoiridium [Ir(OH)] complex is effective in catalyzing the hydroarylation depending on the substrates. 1,5-Cyclooctadiene (cod), chiral dienes, and conventional bisphosphines function as ligands controlling the high reactivity and selectivity of the catalysts in the hydroarylation. H/D exchange reaction of alkenes by use of a key intermediate of the hydroarylation reaction is also described.
Collapse
Affiliation(s)
- Takahiro Nishimura
- Department of Chemistry, Graduate School of Science, Osaka City University, Sumiyoshi, Osaka, 558-8585, Japan
| |
Collapse
|
33
|
Topolovčan N, Gredičak M. Synthesis and stereoselective catalytic transformations of 3-hydroxyisoindolinones. Org Biomol Chem 2021; 19:4637-4651. [PMID: 33978006 DOI: 10.1039/d1ob00164g] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This review focuses on the synthesis of 3-hydroxyisoindolinones, and their application as substrates in stereoselective catalytic transformations reported from 2010 to date. These compounds have attracted much attention among synthetic chemists, as they are integral structural parts of a number of natural products and biologically active compounds. The first part of this review covers methods based on electrochemical, photochemical, and thermal reactions for the synthesis of 3-hydroxyisoindolinones. The second part focuses on their employment as substrates in transition metal-catalyzed and organocatalyzed stereoselective transformations for the preparation of chiral 3-substituted isoindolinone derivatives.
Collapse
Affiliation(s)
- Nikola Topolovčan
- Laboratory for Biomimetic Chemistry, Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička c. 54, 10000 Zagreb, Croatia.
| | - Matija Gredičak
- Laboratory for Biomimetic Chemistry, Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička c. 54, 10000 Zagreb, Croatia.
| |
Collapse
|
34
|
Krishna Y, Tanaka F. Intramolecular Formal [4 + 2] Cycloadditions: Synthesis of Spiro Isoindolinone Derivatives and Related Molecules. Org Lett 2021; 23:1874-1879. [PMID: 33601884 DOI: 10.1021/acs.orglett.1c00283] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Acid-catalyzed intramolecular reactions of isoindolinone-derived hydroxylactam derivatives bearing enones or enals that afford spiro isoindolinone derivatives and related molecules have been developed. From the hydroxylactam moieties, N-acylenamides were generated in situ and reacted with the enone and the enal moieties via formal [4 + 2] cycloaddition reactions to construct cyclohexanone- and dihydropyran-fused ring systems and the spiro ring systems.
Collapse
Affiliation(s)
- Yarkali Krishna
- Chemistry and Chemical Bioengineering Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna, Okinawa 904-0495, Japan
| | - Fujie Tanaka
- Chemistry and Chemical Bioengineering Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna, Okinawa 904-0495, Japan
| |
Collapse
|
35
|
Jiang WS, Ji DW, Zhang WS, Zhang G, Min XT, Hu YC, Jiang XL, Chen QA. Orthogonal Regulation of Nucleophilic and Electrophilic Sites in Pd-Catalyzed Regiodivergent Couplings between Indazoles and Isoprene. Angew Chem Int Ed Engl 2021; 60:8321-8328. [PMID: 33463001 DOI: 10.1002/anie.202100137] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Indexed: 12/29/2022]
Abstract
Depending on the reactant property and reaction mechanism, one major regioisomer can be favored in a reaction that involves multiple active sites. Herein, an orthogonal regulation of nucleophilic and electrophilic sites in the regiodivergent hydroamination of isoprene with indazoles is demonstrated. Under Pd-hydride catalysis, the 1,2- or 4,3-insertion pathway with respect to the electrophilic sites on isoprene could be controlled by the choice of ligands. In terms of the nucleophilic sites on indazoles, the reaction occurs at either the N1 - or N2 -position of indazoles is governed by the acid co-catalysts. Preliminary experimental studies have been performed to rationalize the mechanism and regioselectivity. This study not only contributes a practical tool for selective functionalization of isoprene, but also provides a guide to manipulate the regioselectivity for the N-functionalization of indazoles.
Collapse
Affiliation(s)
- Wen-Shuang Jiang
- Department of Medicinal Chemistry, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, China.,Dalian Institute of Chemical Physics, University of Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| | - Ding-Wei Ji
- Dalian Institute of Chemical Physics, University of Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| | - Wei-Song Zhang
- Dalian Institute of Chemical Physics, University of Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| | - Gong Zhang
- Dalian Institute of Chemical Physics, University of Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| | - Xiang-Ting Min
- Dalian Institute of Chemical Physics, University of Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| | - Yan-Cheng Hu
- Dalian Institute of Chemical Physics, University of Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| | - Xu-Liang Jiang
- Department of Medicinal Chemistry, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, China
| | - Qing-An Chen
- Dalian Institute of Chemical Physics, University of Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| |
Collapse
|
36
|
Jiang W, Ji D, Zhang W, Zhang G, Min X, Hu Y, Jiang X, Chen Q. Orthogonal Regulation of Nucleophilic and Electrophilic Sites in Pd‐Catalyzed Regiodivergent Couplings between Indazoles and Isoprene. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100137] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Wen‐Shuang Jiang
- Department of Medicinal Chemistry Shenyang Pharmaceutical University 103 Wenhua Road Shenyang 110016 China
- Dalian Institute of Chemical Physics University of Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| | - Ding‐Wei Ji
- Dalian Institute of Chemical Physics University of Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| | - Wei‐Song Zhang
- Dalian Institute of Chemical Physics University of Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| | - Gong Zhang
- Dalian Institute of Chemical Physics University of Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| | - Xiang‐Ting Min
- Dalian Institute of Chemical Physics University of Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| | - Yan‐Cheng Hu
- Dalian Institute of Chemical Physics University of Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| | - Xu‐Liang Jiang
- Department of Medicinal Chemistry Shenyang Pharmaceutical University 103 Wenhua Road Shenyang 110016 China
| | - Qing‐An Chen
- Dalian Institute of Chemical Physics University of Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| |
Collapse
|
37
|
Sharma A, Dutta D, Gogoi P. A palladium-catalyzed cascade process for spirooxindole: an alternative way for the synthesis of spiro(indoline-3,2'-quinazolin)-2-ones. Org Biomol Chem 2021; 19:1795-1806. [PMID: 33559666 DOI: 10.1039/d0ob02580a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A palladium-catalyzed cascade strategy has been developed for one-pot synthesis of functionalized spiro(indoline-3,2'-quinazolin)-2-one derivatives from readily available starting materials. The reaction proceeds via C-C and two C-N bond formations in a single reaction operation. This method offers an attractive pathway for the synthesis of a broad range of spiro(indoline-3,2'-quinazolin)-2-ones in good yields.
Collapse
Affiliation(s)
- Abhilash Sharma
- Applied Organic Chemistry Group, Chemical Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, Assam, India. and Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Dhiraj Dutta
- Applied Organic Chemistry Group, Chemical Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, Assam, India. and Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Pranjal Gogoi
- Applied Organic Chemistry Group, Chemical Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, Assam, India. and Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| |
Collapse
|
38
|
Wang P, Luo G, Yang J, Cong X, Hou Z, Luo Y. Theoretical Studies of Rare-Earth-Catalyzed [3 + 2] Annulation of Aromatic Aldimine with Styrene: Mechanism and Origin of Diastereoselectivity. J Org Chem 2021; 86:4236-4244. [PMID: 33617714 DOI: 10.1021/acs.joc.0c03060] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The synthesis of multisubstituted 1-aminoindanes through catalyst-controlled diastereodivergent [3 + 2] annulation of aromatic imines with alkenes is of great interest and importance. An understanding of the exact reaction mechanism, especially for the origin of diastereoselectivity, is an essential aspect for further development of such reactions. In this study, density functional theory calculations have been carried out on the rare-earth-catalyzed diastereodivergent [3 + 2] annulation of benzaldimine with styrene. The results show that the reaction mainly involves generation of active species, olefin insertion, cyclization, and protonation steps. The noncovalent interactions, such as C-H···π and metal···π interactions, play an important role in stabilizing the key transition state or intermediate. Both steric and electronic factors account for the diastereoselectivity. The preferred cis-diastereoselectivity could be ascribed to more efficient orbital interaction, while the crowded space will induce the formation of a C-H···π interaction between the NtBu group and benzene ring in a trans-diastereoselectivity manner, thus stabilizing the trans-selective transition state. Therefore, the stereospecific product could be obtained by fine-tuning the ligand/metal combination of the catalysts.
Collapse
Affiliation(s)
- Pan Wang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Gen Luo
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
| | - Jimin Yang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Xuefeng Cong
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science and Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, Wako, Saitama 3510198, Japan
| | - Zhaomin Hou
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China.,Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science and Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, Wako, Saitama 3510198, Japan
| | - Yi Luo
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China.,PetroChina Petrochemical Research Institute, Beijing 102206, China
| |
Collapse
|
39
|
Shibata T, Shiozawa N, Nishibe S, Takano H, Maeda S. Pt( ii)-Chiral diene-catalyzed enantioselective formal [4 + 2] cycloaddition initiated by C–C bond cleavage and elucidation of a Pt( ii)/( iv) cycle by DFT calculations. Org Chem Front 2021. [DOI: 10.1039/d1qo01467f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Pt(ii)-chiral diene complex demonstrates a high catalytic activity in the enantioselective formal [4 + 2] cycloaddition along with C–C bond cleavage of biphenylene at room temp. DFT calculations elucidated that the present catalysis involves a rare Pt(ii)/Pt(iv) cycle.
Collapse
Affiliation(s)
- Takanori Shibata
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, Shinjuku, Tokyo 169-8555, Japan
| | - Natsumi Shiozawa
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, Shinjuku, Tokyo 169-8555, Japan
| | - Shun Nishibe
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, Shinjuku, Tokyo 169-8555, Japan
| | - Hideaki Takano
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, Shinjuku, Tokyo 169-8555, Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Kita 21 Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0021, Japan
- JST, ERATO Maeda Artificial Intelligence for Chemical Reaction Design and Discovery Project, Kita 10 Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
| | - Satoshi Maeda
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Kita 21 Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0021, Japan
- JST, ERATO Maeda Artificial Intelligence for Chemical Reaction Design and Discovery Project, Kita 10 Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
- Department of Chemistry, Faculty of Science, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
| |
Collapse
|
40
|
Woźniak Ł, Tan JF, Nguyen QH, Madron du Vigné A, Smal V, Cao YX, Cramer N. Catalytic Enantioselective Functionalizations of C–H Bonds by Chiral Iridium Complexes. Chem Rev 2020; 120:10516-10543. [DOI: 10.1021/acs.chemrev.0c00559] [Citation(s) in RCA: 106] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Łukasz Woźniak
- Laboratory of Asymmetric Catalysis and Synthesis, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Jin-Fay Tan
- Laboratory of Asymmetric Catalysis and Synthesis, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Qui-Hien Nguyen
- Laboratory of Asymmetric Catalysis and Synthesis, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Adrien Madron du Vigné
- Laboratory of Asymmetric Catalysis and Synthesis, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Vitalii Smal
- Laboratory of Asymmetric Catalysis and Synthesis, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Yi-Xuan Cao
- Laboratory of Asymmetric Catalysis and Synthesis, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Nicolai Cramer
- Laboratory of Asymmetric Catalysis and Synthesis, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| |
Collapse
|
41
|
Song Z, Yang Z, Wang P, Shi Z, Li T, Cui X. Ruthenium(II)-Catalyzed Regioselective [3 + 2] Spiroannulation of 2 H-Imidazoles with 2-Alkynoates. Org Lett 2020; 22:6272-6276. [PMID: 32806131 DOI: 10.1021/acs.orglett.0c02024] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The C═N double bond of 2H-imidazole has been employed as a C-electrophile for the ruthenium(II)-catalyzed [3 + 2] spiroannulation reaction of 4-phenyl-2H-imidazoles and 2-alkynoates to synthesize spiroimidazole-4,1'-indenes. This strategy features high regioselectivity, broad functional group tolerance, and use of ruthenium as a catalyst, providing a new method to synthesize spirocycles with potential applications in pharmaceuticals.
Collapse
Affiliation(s)
- Zhenyu Song
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P.R. China
| | - Zi Yang
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P.R. China
| | - Pu Wang
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P.R. China
| | - Zhaojiang Shi
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P.R. China
| | - Tingfang Li
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P.R. China
| | - Xiuling Cui
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P.R. China
| |
Collapse
|
42
|
Shi Y, Fang Y, Zhao X, Zhu C, Wu X, Yang X, Luo Y. Remarkable Ligand Effect on Rh-Catalyzed C–H-Active [3 + 2] Annulation of Ketimines and Alkynes. Org Lett 2020; 22:4903-4907. [DOI: 10.1021/acs.orglett.0c01768] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Yan Shi
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Yong Fang
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Xu Zhao
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Chengfeng Zhu
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Xiang Wu
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Xiaoming Yang
- Shanghai Chiral Chemistry Co., Ltd., 158 Wuhe Road, Minhang District, Shanghai 201109, China
| | - Yunfei Luo
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| |
Collapse
|
43
|
Cong X, Zhan G, Mo Z, Nishiura M, Hou Z. Diastereodivergent [3 + 2] Annulation of Aromatic Aldimines with Alkenes via C-H Activation by Half-Sandwich Rare-Earth Catalysts. J Am Chem Soc 2020; 142:5531-5537. [PMID: 32148027 DOI: 10.1021/jacs.0c01171] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Stereodivergent catalysis is of great importance, as it can allow efficient access to all possible stereoisomers of a given product with multiple stereocenters from the same set of starting materials. We report herein the first diastereodivergent [3 + 2] annulation of aromatic aldimines with alkenes via C-H activation by half-sandwich rare-earth catalysts. This protocol provides an efficient and general route for the selective synthesis of both trans and cis diastereoisomers of multisubstituted 1-aminoindanes from the same set of aldimines and alkenes, featuring 100% atom efficiency, excellent diastereoselectivity, broad substrate scope, and good functional group compatibility. The diastereodivergence is achieved by fine-tuning the sterics or ligand/metal combination of the half-sandwich rare-earth metal complexes.
Collapse
Affiliation(s)
- Xuefeng Cong
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Gu Zhan
- Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Zhenbo Mo
- Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Masayoshi Nishiura
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.,Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Zhaomin Hou
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.,Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| |
Collapse
|
44
|
Venkateshwarlu R, Murthy VN, Tadiparthi K, Nikumbh SP, Jinkala R, Siddaiah V, Madhu Babu MV, Rama Mohan H, Raghunadh A. Base mediated spirocyclization of quinazoline: one-step synthesis of spiro-isoindolinone dihydroquinazolinones. RSC Adv 2020; 10:9486-9491. [PMID: 35497232 PMCID: PMC9050170 DOI: 10.1039/c9ra09567e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Accepted: 02/19/2020] [Indexed: 11/21/2022] Open
Abstract
A novel approach for the spiro-isoindolinone dihydroquinazolinones has been demonstrated from 2-aminobenzamide and 2-cyanomethyl benzoate in the presence of KHMDS as a base to get moderate yields. The reaction has been screened in various bases followed by solvents and a gram scale reaction has also been executed under the given conditions. Based on the controlled experiments a plausible reaction mechanism has been proposed. Further the substrate scope of this reaction has also been studied.
Collapse
Affiliation(s)
- Rapolu Venkateshwarlu
- Technology Development Centre, Custom Pharmaceutical Services, Dr. Reddy's Laboratories Ltd. Hyderabad 500049 India
- Department of Organic Chemistry and FDW, Andhra University Visakhapatnam 530045 India
| | - V Narayana Murthy
- Technology Development Centre, Custom Pharmaceutical Services, Dr. Reddy's Laboratories Ltd. Hyderabad 500049 India
| | - Krishnaji Tadiparthi
- Department of Chemistry, CHRIST (Deemed to be University) Hosur Road Bengaluru 560029 India
| | - Satish P Nikumbh
- Technology Development Centre, Custom Pharmaceutical Services, Dr. Reddy's Laboratories Ltd. Hyderabad 500049 India
| | - Rajesh Jinkala
- Technology Development Centre, Custom Pharmaceutical Services, Dr. Reddy's Laboratories Ltd. Hyderabad 500049 India
| | - Vidavalur Siddaiah
- Department of Organic Chemistry and FDW, Andhra University Visakhapatnam 530045 India
| | - M V Madhu Babu
- Technology Development Centre, Custom Pharmaceutical Services, Dr. Reddy's Laboratories Ltd. Hyderabad 500049 India
| | - Hindupur Rama Mohan
- Technology Development Centre, Custom Pharmaceutical Services, Dr. Reddy's Laboratories Ltd. Hyderabad 500049 India
| | - Akula Raghunadh
- Technology Development Centre, Custom Pharmaceutical Services, Dr. Reddy's Laboratories Ltd. Hyderabad 500049 India
| |
Collapse
|
45
|
Elliott Q, Dos Passos Gomes G, Evoniuk CJ, Alabugin IV. Testing the limits of radical-anionic CH-amination: a 10-million-fold decrease in basicity opens a new path to hydroxyisoindolines via a mixed C-N/C-O-forming cascade. Chem Sci 2020; 11:6539-6555. [PMID: 34094120 PMCID: PMC8159354 DOI: 10.1039/c9sc06511c] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 02/14/2020] [Indexed: 11/21/2022] Open
Abstract
An intramolecular C(sp3)-H amidation proceeds in the presence of t-BuOK, molecular oxygen, and DMF. This transformation is initiated by the deprotonation of an acidic N-H bond and selective radical activation of a benzylic C-H bond towards hydrogen atom transfer (HAT). Cyclization of this radical-anion intermediate en route to a two-centered/three-electron (2c,3e) C-N bond removes electron density from nitrogen. As this electronegative element resists such an "oxidation", making nitrogen more electron rich is key to overcoming this problem. This work dramatically expands the range of N-anions that can participate in this process by using amides instead of anilines. The resulting 107-fold decrease in the N-component basicity (and nucleophilicity) doubles the activation barrier for C-N bond formation and makes this process nearly thermoneutral. Remarkably, this reaction also converts a weak reductant into a much stronger reductant. Such "reductant upconversion" allows mild oxidants like molecular oxygen to complete the first part of the cascade. In contrast, the second stage of NH/CH activation forms a highly stabilized radical-anion intermediate incapable of undergoing electron transfer to oxygen. Because the oxidation is unfavored, an alternative reaction path opens via coupling between the radical anion intermediate and either superoxide or hydroperoxide radical. The hydroperoxide intermediate transforms into the final hydroxyisoindoline products under basic conditions. The use of TEMPO as an additive was found to activate less reactive amides. The combination of experimental and computational data outlines a conceptually new mechanism for conversion of unprotected amides into hydroxyisoindolines proceeding as a sequence of C-H amidation and C-H oxidation.
Collapse
Affiliation(s)
- Quintin Elliott
- Department of Chemistry and Biochemistry, Florida State University Tallahassee Florida 32306 USA
| | - Gabriel Dos Passos Gomes
- Department of Chemistry and Biochemistry, Florida State University Tallahassee Florida 32306 USA
| | - Christopher J Evoniuk
- Department of Chemistry and Biochemistry, Florida State University Tallahassee Florida 32306 USA
| | - Igor V Alabugin
- Department of Chemistry and Biochemistry, Florida State University Tallahassee Florida 32306 USA
| |
Collapse
|
46
|
Kavala V, Wang CY, Wang CC, Patil PB, Fang C, Kuo CW, Yao CF. Copper-catalysed synthesis of 3-hydroxyisoindolin-1-ones from benzylcyanide 2-iodobenzamides. Org Biomol Chem 2020; 18:988-998. [PMID: 31942895 DOI: 10.1039/c9ob02329a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
An efficient one-pot two-step sequential reaction for the synthesis of biologically active 3-hydroxyisoindolin-1-one derivatives from 2-iodobenzamide derivatives and various substituted benzyl cyanides in the presence of CuCl and cesium carbonate in DMSO is reported. Furthermore, 3-hydroxyisoindolinone derivatives possessing bromo substituents were obtained from 2-iodobenzamide and 2-bromobenzyl cyanide substrates in two steps. Benzyl cyanide has been successfully used for the first time as a benzoyl synthon for the synthesis of 3-hydroxyisoindolin-1-ones. Interestingly, the mechanism of formation of 3-hydroxyisoindolin-1-ones is a novel pathway that involves carbon degradation followed by ring contraction.
Collapse
Affiliation(s)
- Veerababurao Kavala
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Ting-Zhou Road, Taipei-116, Taiwan, Republic of China.
| | - Chen-Yu Wang
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Ting-Zhou Road, Taipei-116, Taiwan, Republic of China.
| | - Cheng-Chuan Wang
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Ting-Zhou Road, Taipei-116, Taiwan, Republic of China.
| | - Prakash Bhimrao Patil
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Ting-Zhou Road, Taipei-116, Taiwan, Republic of China.
| | - ChiaChi Fang
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Ting-Zhou Road, Taipei-116, Taiwan, Republic of China.
| | - Chun-Wei Kuo
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Ting-Zhou Road, Taipei-116, Taiwan, Republic of China.
| | - Ching-Fa Yao
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Ting-Zhou Road, Taipei-116, Taiwan, Republic of China.
| |
Collapse
|
47
|
Mishra A, Bhowmik A, Samanta S, Sarkar W, Das S, Deb I. Diastereoselective Spirocyclization of Benzoxazines with Nitroalkenes via Rhodium-Catalyzed C–H Functionalization/Annulation Cascade under Mild Conditions. Org Lett 2020; 22:1340-1344. [DOI: 10.1021/acs.orglett.9b04652] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Aniket Mishra
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Arup Bhowmik
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Siddhartha Samanta
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Writhabrata Sarkar
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Sumit Das
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Indubhusan Deb
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| |
Collapse
|
48
|
Verma A, Singh Banjara L, Meena R, Kumar S. Transition‐Metal‐Free Synthesis of N‐Substituted Phenanthridinones and Spiro‐isoindolinones: C(
sp
2
)−N and C(
sp
2
)−O Coupling through Radical Pathway. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.201900704] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Ajay Verma
- Department of ChemistryIndian Institute of Science Education and Research Bhopal Bhopal By-pass Road Bhauri, Bhopal, Madhya Pradesh 462066 India
| | - Lal Singh Banjara
- Department of ChemistryIndian Institute of Science Education and Research Bhopal Bhopal By-pass Road Bhauri, Bhopal, Madhya Pradesh 462066 India
| | - Rahul Meena
- Department of ChemistryIndian Institute of Science Education and Research Bhopal Bhopal By-pass Road Bhauri, Bhopal, Madhya Pradesh 462066 India
| | - Sangit Kumar
- Department of ChemistryIndian Institute of Science Education and Research Bhopal Bhopal By-pass Road Bhauri, Bhopal, Madhya Pradesh 462066 India
| |
Collapse
|
49
|
Zhang Y, Huang T, Li X, Zhang M, Song Y, Huang K, Su W. Rh( iii)-catalyzed spiroannulation of 3-arylquinoxalin-2(1 H)-ones with alkynes: practical access to spiroquinoxalinones. RSC Adv 2020; 10:22216-22221. [PMID: 35516638 PMCID: PMC9054490 DOI: 10.1039/d0ra03348k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 05/21/2020] [Indexed: 01/10/2023] Open
Abstract
The use of imines as a H acceptor for Rh(iii)-catalyzed spirocyclization of 3-arylquinoxalinones and alkynes via a C–H functionalization/[3 + 2] annulation sequence has been achieved.
Collapse
Affiliation(s)
- Yuanfei Zhang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics
- Nanning Normal University
- Nanning 530001
- China
- State Key Laboratory of Structural Chemistry
| | - Ting Huang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics
- Nanning Normal University
- Nanning 530001
- China
| | - Xinghua Li
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics
- Nanning Normal University
- Nanning 530001
- China
| | - Min Zhang
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou 350002
- China
| | - Ying Song
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics
- Nanning Normal University
- Nanning 530001
- China
| | - Kelin Huang
- China Academy of Science and Technology Development Guangxi Branch
- Nanning 530022
- China
| | - Weiping Su
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou 350002
- China
| |
Collapse
|
50
|
Li G, Huo X, Jiang X, Zhang W. Asymmetric synthesis of allylic compounds via hydrofunctionalisation and difunctionalisation of dienes, allenes, and alkynes. Chem Soc Rev 2020; 49:2060-2118. [DOI: 10.1039/c9cs00400a] [Citation(s) in RCA: 133] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This review article provides an overview of progress in asymmetric synthesis of allylic compounds via hydrofunctionalisation and difunctionalisation of dienes, allenes, and alkynes.
Collapse
Affiliation(s)
- Guanlin Li
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Xiaohong Huo
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Xieyang Jiang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| |
Collapse
|