1
|
Ge FB, Lu CJ, Chen X, Yao W, An M, Jiang YK, Xu LP, Liu RR. Enantioselective Nickel-Catalyzed Denitrogenative Transannulation En Route to N-N Atropisomers. Angew Chem Int Ed Engl 2024; 63:e202400441. [PMID: 38587149 DOI: 10.1002/anie.202400441] [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: 01/31/2024] [Revised: 04/06/2024] [Accepted: 04/08/2024] [Indexed: 04/09/2024]
Abstract
Nickel-catalyzed transannulation reactions triggered by the extrusion of small gaseous molecules have emerged as a powerful strategy for the efficient construction of heterocyclic compounds. However, their use in asymmetric synthesis remains challenging because of the difficulty in controlling stereo- and regioselectivity. Herein, we report the first nickel-catalyzed asymmetric synthesis of N-N atropisomers by the denitrogenative transannulation of benzotriazones with alkynes. A broad range of N-N atropisomers was obtained with excellent regio- and enantioselectivity under mild conditions. Moreover, density functional theory (DFT) calculations provided insights into the nickel-catalyzed reaction mechanism and enantioselectivity control.
Collapse
Affiliation(s)
- Fang-Bei Ge
- College of Chemistry and Chemical Engineering, Qingdao University, Ningxia Road 308#, Qingdao, 266071, China
| | - Chuan-Jun Lu
- College of Chemistry and Chemical Engineering, Qingdao University, Ningxia Road 308#, Qingdao, 266071, China
| | - Xiao Chen
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Wang Yao
- College of Chemistry and Chemical Engineering, Qingdao University, Ningxia Road 308#, Qingdao, 266071, China
| | - Mei An
- College of Chemistry and Chemical Engineering, Qingdao University, Ningxia Road 308#, Qingdao, 266071, China
| | - Yu-Kun Jiang
- College of Chemistry and Chemical Engineering, Qingdao University, Ningxia Road 308#, Qingdao, 266071, China
| | - Li-Ping Xu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Ren-Rong Liu
- College of Chemistry and Chemical Engineering, Qingdao University, Ningxia Road 308#, Qingdao, 266071, China
| |
Collapse
|
2
|
Permingeat Squizatto C, Bianchini MA, Delpiccolo CML. Synthesis of 2,3-Dihydropyrroles by Rhodium(II)-Catalyzed Transannulation of N-Sulfonyl-1,2,3-triazoles: Diversity Generation by One-Pot Methodologies. J Org Chem 2023; 88:16091-16103. [PMID: 37910436 DOI: 10.1021/acs.joc.3c01337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
A versatile one-pot strategy for the generation of compounds of synthetic interest has been presented, promoting the development of practical processes. First, the transannulation of N-sulfonyltriazoles through alkenes and rhodium catalysis was described, giving 2,3-dihydropyrroles in 13-76% yield. As contributions of the strategy, the evaluation of alkenes with different properties, and the use of only drops of solvent (0.40 M) was highlighted. In addition, we described a methodology for the modulation of the N-sulfonyltriazoles, to obtain selectively cyclopropyl tosylimines or 2,3-dihydropyrroles. For the latter products, neat conditions were also included. Finally, the potential of the methodology was demonstrated by the synthesis of six structurally different analogues starting from the same substrates and late-stage transformation of bioactive molecules. These compounds were generated in 38-63% yield, after two or more conversion steps carried out in the same reaction vessel.
Collapse
Affiliation(s)
- Caterina Permingeat Squizatto
- Instituto de Química Rosario, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario-CONICET, Suipacha 531, Rosario S2002LRK, Argentina
| | - Maira A Bianchini
- Instituto de Química Rosario, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario-CONICET, Suipacha 531, Rosario S2002LRK, Argentina
| | - Carina M L Delpiccolo
- Instituto de Química Rosario, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario-CONICET, Suipacha 531, Rosario S2002LRK, Argentina
| |
Collapse
|
3
|
Pandey S, Parveen S, Volla CMR. Rh(II)-Catalyzed Denitrogenative Reaction of N-Sulfonyl-1,2,3-triazoles with Quinolones and Isoquinolones. Chem Asian J 2023; 18:e202300614. [PMID: 37665690 DOI: 10.1002/asia.202300614] [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: 07/15/2023] [Revised: 09/01/2023] [Accepted: 09/04/2023] [Indexed: 09/06/2023]
Abstract
Herein, we developed an efficient approach to access biologically relevant 2-aminoquinolines and 1-aminoisoquinolines from readily available N-sulfonyl-1,2,3-triazoles and 2-quinolones or 1-isoquinolones. This transformation involves the selective O-H insertion of these derivatives onto the in situ generated Rh-azavinyl carbenes (Rh-AVC) followed by rearrangement. The reaction proceeds smoothly under operationally simple conditions and the protocol was found to be scalable.
Collapse
Affiliation(s)
- Shivam Pandey
- Department of Chemistry, Indian Institute of Technology Bombay Powai, Mumbai, 400076, India
| | - Sabiha Parveen
- Department of Chemistry, Indian Institute of Technology Bombay Powai, Mumbai, 400076, India
| | - Chandra M R Volla
- Department of Chemistry, Indian Institute of Technology Bombay Powai, Mumbai, 400076, India
| |
Collapse
|
4
|
Aggarwal S, Richards WJ, Fokin VV. Generation and Aerobic Oxidation of Azavinyl Captodative Radicals. J Am Chem Soc 2023. [PMID: 37733969 DOI: 10.1021/jacs.3c06068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/23/2023]
Abstract
We describe a cascade reaction that selectively incorporates oxygen into the carbon-carbon backbone of alkynes using air as the source. The process starts by lithiating readily available, electron-deficient 1,2,3-triazoles, resulting in an amphoteric lithium ketenimine intermediate. This intermediate can react with both electrophiles and nucleophiles. Under the conditions outlined in this study, we generate azavinyl radicals, which are a rare subset of captodative radicals. When exposed to atmospheric oxygen, these radicals efficiently transform into α-oxygenated amidines─a class of compounds that has not been extensively studied. This process uniquely utilizes molecular oxygen without requiring metal or photocatalysts, and it occurs under mild conditions. Our mechanistic studies provide insights into the intricate sequence involved in the formation and selective capture of azavinyl captodative radicals.
Collapse
Affiliation(s)
- Shubhangi Aggarwal
- Department of Chemistry, The Bridge@USC and Loker Hydrocarbon Research Institute, University of Southern California, Los Angeles, 90089, California, United States
| | - William J Richards
- Department of Chemistry, The Bridge@USC and Loker Hydrocarbon Research Institute, University of Southern California, Los Angeles, 90089, California, United States
| | - Valery V Fokin
- Department of Chemistry, The Bridge@USC and Loker Hydrocarbon Research Institute, University of Southern California, Los Angeles, 90089, California, United States
| |
Collapse
|
5
|
Yang Y, Liu S, Li S, Liu Z, Liao P, Sivaguru P, Lu Y, Gao J, Bi X. Site-Selective C-H Allylation of Alkanes: Facile Access to Allylic Quaternary sp 3 -Carbon Centers. Angew Chem Int Ed Engl 2023; 62:e202214519. [PMID: 36428220 DOI: 10.1002/anie.202214519] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 11/24/2022] [Accepted: 11/25/2022] [Indexed: 11/27/2022]
Abstract
The construction of allylic quaternary sp3 -carbon centers has long been a formidable challenge in transition-metal-catalyzed alkyl-allyl coupling reactions due to the severe steric hindrance. Herein, we report an effective carbene strategy that employs well-defined vinyl-N-triftosylhydrazones as a versatile allylating reagent to enable direct assembly of these medicinally desirable structural elements from low-cost alkane feedstocks. The reaction exhibited excellent site selectivity for tertiary C-H bonds, broad scope (>60 examples and >20 : 1:0 r. r.) and good efficiency, even on a gram-scale, making it a convenient alternative to the well-known Trost-Tsuji allylation reaction for the formation of alkyl-allyl bonds. Combined experimental and computational studies were employed to unravel the mechanism and origin of site- and chemoselectivity of the reaction.
Collapse
Affiliation(s)
- Yong Yang
- Department of Chemistry, Northeast Normal University, 130024, Changchun, China
| | - Shaopeng Liu
- Department of Chemistry, Northeast Normal University, 130024, Changchun, China
| | - Shuang Li
- Department of Chemistry, Northeast Normal University, 130024, Changchun, China
| | - Zhaohong Liu
- Department of Chemistry, Northeast Normal University, 130024, Changchun, China
| | | | | | - Ying Lu
- Department of Chemistry, Northeast Normal University, 130024, Changchun, China
| | - Jiaojiao Gao
- Department of Chemistry, Northeast Normal University, 130024, Changchun, China
| | - Xihe Bi
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University, 300071, Tianjin, China
| |
Collapse
|
6
|
Das SK, Roy S, Chattopadhyay B. Transition-Metal-Catalyzed Denitrogenative Annulation to Access High-Valued N-Heterocycles. Angew Chem Int Ed Engl 2023; 62:e202210912. [PMID: 36227158 DOI: 10.1002/anie.202210912] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Indexed: 11/05/2022]
Abstract
Over the past few years, the development of efficient methods to construct high-valued N-heterocyclic molecules have received massive attention owing to their extensive application in the areas of medicinal chemistry, drug discovery, natural product synthesis and so on. To access those high-valued N-heterocycles, many methods have been developed. In this context, transition-metal-catalyzed denitrogenative annulation of 1,2,3-triazoles and 1,2,3,4-tetrazoles has appeared as a powerful synthetic tool because it offers a step- and atom-economical route for the preparation of the nitrogen-rich molecules. Compared with the denitrogenative annulation of various 1,2,3-triazole frameworks, annulation of 1,2,3,4-tetrazole remains more challenging due to the inertness of the tetrazole moiety. This Review summarizes the significant achievements made in the field of denitrogenative annulation of various 1,2,3-triazoles and 1,2,3,4-tetrazoles including some pioneering examples in this area of research. We anticipate that this denitrogenative annulation reaction will find broad applications in the pharmaceutical industry, drug discovery and other fields of medicinal chemistry.
Collapse
Affiliation(s)
- Sandip Kumar Das
- Department of Biological & Synthetic Chemistry, Centre of Biomedical Research (CBMR), SGPGIMS Campus, Raebareli Road, Lucknow, 226014, Uttar Pradesh, India
| | - Satyajit Roy
- Department of Biological & Synthetic Chemistry, Centre of Biomedical Research (CBMR), SGPGIMS Campus, Raebareli Road, Lucknow, 226014, Uttar Pradesh, India
| | - Buddhadeb Chattopadhyay
- Department of Biological & Synthetic Chemistry, Centre of Biomedical Research (CBMR), SGPGIMS Campus, Raebareli Road, Lucknow, 226014, Uttar Pradesh, India
| |
Collapse
|
7
|
Kubiak RW, Tracy WF, Alford JS, Davies HML. Asymmetric Cyclopropanation with 4-Aryloxy-1-sulfonyl-1,2,3-triazoles: Expanding the Range of Rhodium-Stabilized Donor/Acceptor Carbenes to Systems with an Oxygen Donor Group. J Org Chem 2022; 87:13517-13528. [PMID: 36264239 PMCID: PMC10290286 DOI: 10.1021/acs.joc.2c00978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Rhodium-catalyzed enantioselective synthesis of 1-phenoxycyclopropane-1-carbaldehydes by intermolecular cyclopropanation of terminal alkenes followed by imine hydrolysis is described. This methodology utilizes 4-aryloxy-1-sulfonyl-1,2,3-triazoles as the carbene precursors and the chiral dirhodium(II) tetracarboxylates Rh2(S-NTTL)4 or Rh2(S-DPCP)4 as the catalysts. These reactions are considered to proceed via rhodium-stabilized donor/acceptor carbene intermediates, and these studies demonstrate that a heteroatom donor group is compatible with an enantioselective transformation.
Collapse
Affiliation(s)
- Robert W Kubiak
- Department of Chemistry, Emory University, 1515 Dickey Dr., Atlanta, Georgia 30329, United States
| | - William F Tracy
- Department of Chemistry, Emory University, 1515 Dickey Dr., Atlanta, Georgia 30329, United States
| | - Joshua S Alford
- Department of Chemistry, Emory University, 1515 Dickey Dr., Atlanta, Georgia 30329, United States
| | - Huw M L Davies
- Department of Chemistry, Emory University, 1515 Dickey Dr., Atlanta, Georgia 30329, United States
| |
Collapse
|
8
|
Akter M, Rupa K, Anbarasan P. 1,2,3-Triazole and Its Analogues: New Surrogates for Diazo Compounds. Chem Rev 2022; 122:13108-13205. [DOI: 10.1021/acs.chemrev.1c00991] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Monalisa Akter
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| | - Kavuri Rupa
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| | - Pazhamalai Anbarasan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| |
Collapse
|
9
|
Mishra DR, Panda BS, Nayak S, Panda J, Mohapatra S. Recent Advances in the Synthesis of 5‐Membered
N
‐Heterocycles via Rhodium Catalysed Cascade Reactions. ChemistrySelect 2022. [DOI: 10.1002/slct.202200531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Deepak R. Mishra
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Bhabani S. Panda
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Sabita Nayak
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Jasmine Panda
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Seetaram Mohapatra
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| |
Collapse
|
10
|
Hill HM, Tucker ZD, Rodriguez KX, Wendt KA, Ashfeld BL. Generation of Functionalized Azepinone Derivatives via a (4 + 3)-Cycloaddition of Vinyl Ketenes and α-Imino Carbenes Derived from N-Sulfonyl-triazoles. J Org Chem 2022; 87:3825-3833. [PMID: 35188763 DOI: 10.1021/acs.joc.1c03002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An intermolecular RhII-catalyzed, formal (4 + 3)-cycloaddition between vinyl ketenes and N-sulfonyl-1,2,3-triazoles for the construction of azepinone products is described. Employing vinyl ketenes as a 1,4-dipolar surrogate, instead of the more commonly used dienyl moieties, allows for the intermolecular and selective formation of azepinone products over a potential (3 + 2)-cycloadduct under mild reaction conditions allows for the generation of azepinone products in up to 98% yield.
Collapse
Affiliation(s)
- Harrison M Hill
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Zachary D Tucker
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Kevin X Rodriguez
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Katelyn A Wendt
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Brandon L Ashfeld
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| |
Collapse
|
11
|
Liu Y, Chen Y, Yihuo A, Zhou Y, Liu X, Lin L, Feng X. Diastereodivergent Synthesis of Chiral α-Aminoketones via a Catalytic O–H Insertion/Barnes–Claisen Rearrangement Reaction. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05789] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yun Liu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Yushuang Chen
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Aying Yihuo
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Yuqiao Zhou
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Lili Lin
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
| |
Collapse
|
12
|
Understanding diversified chemoseletivities in Rh2(II)-catalyzed intramolecular annulation reactions of diazo and N-Sulfonyl-1,2,3-triazole compounds: A DFT study. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2021.112047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
13
|
Zhuo CX, Wang JL. Catalytic Deoxygenative Cyclopropanation of 1,2-Dicarbonyl or Monocarbonyl Compounds via Molybdenum Catalysis. Synlett 2021. [DOI: 10.1055/a-1696-4553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
AbstractThe cyclopropanation of alkenes through the transition-metal-catalyzed decomposition of diazo compounds is a powerful and straightforward strategy to produce cyclopropanes. Nevertheless, the appeal of further application of this strategy is tempered by the potentially explosive nature of the diazo substrates. Therefore, it is highly desirable to develop sustainable and operationally safe surrogates for diazo compounds. In this Synpacts article, we discuss recent advances on the cyclopropane syntheses through the catalytic cyclopropanation of alkenes and metal carbenes generated in situ from nondiazo precursors as well as highlight our recent progress on the unprecedented molybdenum-catalyzed deoxygenative cyclopropanation reaction of 1,2-dicarbonyl or monocarbonyl compounds.
Collapse
|
14
|
Li YL, Zhang PC, Wu HH, Zhang J. Palladium-Catalyzed Asymmetric Tandem Denitrogenative Heck/Tsuji-Trost of Benzotriazoles with 1,3-Dienes. J Am Chem Soc 2021; 143:13010-13015. [PMID: 34402615 DOI: 10.1021/jacs.1c07212] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The asymmetric denitrogenative cycloaddition has emerged as a powerful tool to build chiral aza-heterocyles. However, only one example of asymmetric denitrogenative cycloaddition of benzotriazole with unsaturated hydrocarbons has been explored so far, because the ring-opening of benzotriazole to generate α-imino metal carbenoid species is a thermodynamically unfavorable process. We herein report an efficient asymmetric denitrogenative cycloaddition of benzotriazoles with cyclic and acyclic 1,3-dienes enabled by Pd and chiral sulfonamide phosphine ligand. A variety of substituted hexahydrocarbazoles and indolines were delivered in good yields with high ee values. Interestingly, a pair of enantiomers could be obtained with the use of Xu1 and PC2 with the same absolute configuration. The synthetic utilities of the optically active hexahydrocarbazoles were also showcased.
Collapse
Affiliation(s)
- Yin-Lin Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Pei-Chao Zhang
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, P. R. China
| | - Hai-Hong Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China.,Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, P. R. China
| |
Collapse
|
15
|
Wang X, Ke J, Zhu Y, Deb A, Xu Y, Zhang XP. Asymmetric Radical Process for General Synthesis of Chiral Heteroaryl Cyclopropanes. J Am Chem Soc 2021; 143:11121-11129. [PMID: 34282613 PMCID: PMC8399893 DOI: 10.1021/jacs.1c04655] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A highly efficient catalytic method has been developed for asymmetric radical cyclopropanation of alkenes with in situ-generated α-heteroaryldiazomethanes via Co(II)-based metalloradical catalysis (MRC). Through fine-tuning the cavity-like environments of newly-synthesized D2-symmetric chiral amidoporphyrins as the supporting ligand, the optimized Co(II)-based metalloradical system is broadly applicable to α-pyridyl and other α-heteroaryldiazomethanes for asymmetric cyclopropanation of wide-ranging alkenes, including several types of challenging substrates. This new catalytic methodology provides a general access to valuable chiral heteroaryl cyclopropanes in high yields with excellent both diastereoselectivities and enantioselectivities. Combined computational and experimental studies further support the underlying stepwise radical mechanism of the Co(II)-based olefin cyclopropanation involving α- and γ-metalloalkyl radicals as the key intermediates.
Collapse
Affiliation(s)
- Xiaoxu Wang
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Jing Ke
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Yiling Zhu
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Arghya Deb
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Yijie Xu
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - X Peter Zhang
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| |
Collapse
|
16
|
Li X, Golz C, Alcarazo M. α-Diazo Sulfonium Triflates: Synthesis, Structure, and Application to the Synthesis of 1-(Dialkylamino)-1,2,3-triazoles. Angew Chem Int Ed Engl 2021; 60:6943-6948. [PMID: 33351262 PMCID: PMC8048477 DOI: 10.1002/anie.202014775] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 12/13/2020] [Indexed: 01/03/2023]
Abstract
The one-pot synthesis of a series of sulfonium salts containing transferable diazomethyl groups is described, and the structure of these compounds is elucidated by X-ray crystallography. Under photochemical conditions, reaction of these salts with N,N-dialkyl hydrazones affords 1-(dialkylamino)-1,2,3-triazoles via diazomethyl radical addition to the azomethine carbon followed by intramolecular ring closure. The straightforward transformation of the structures thus obtained into mesoionic carbene-metal complexes is also reported and the donor properties of these new ligands characterized.
Collapse
Affiliation(s)
- Xiangdong Li
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstr. 237077GöttingenGermany
| | - Christopher Golz
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstr. 237077GöttingenGermany
| | - Manuel Alcarazo
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstr. 237077GöttingenGermany
| |
Collapse
|
17
|
Liu Z, Chen L, Zhu D, Zhu S. Formal Allylation and Enantioselective Cyclopropanation of Donor/Acceptor Rhodium(II) Azavinyl Carbenes. Org Lett 2021; 23:1275-1279. [PMID: 33534583 DOI: 10.1021/acs.orglett.0c04251] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A highly efficient formal allylation of dihydronaphthotriazoles with alkenes under rhodium(II) catalysis is reported. Various allyl dihydronaphthalene derivatives were furnished via rhodium(II) azavinyl carbenes with moderate to good yields and excellent chemoselectivity. When monosubstituted alkenes are used, cyclopropanation occurs and good to excellent enantioselectivities have been achieved. Particularly noteworthy is the allylic C(sp2)-H activation instead of traditional C(sp3)-H activation in the formal allylation process.
Collapse
Affiliation(s)
- Zhili Liu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Lianfen Chen
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Dong Zhu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Shifa Zhu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China.,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China
| |
Collapse
|
18
|
Li X, Golz C, Alcarazo M. α‐Diazo Sulfonium Triflates: Synthesis, Structure, and Application to the Synthesis of 1‐(Dialkylamino)‐1,2,3‐triazoles. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014775] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Xiangdong Li
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstr. 2 37077 Göttingen Germany
| | - Christopher Golz
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstr. 2 37077 Göttingen Germany
| | - Manuel Alcarazo
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstr. 2 37077 Göttingen Germany
| |
Collapse
|
19
|
Miura T, Hagiwara K, Nakamuro T, Nagata Y, Oku N, Murakami M. Regioselective 1,3-Dipolar Cycloaddition of Nitriles with Nitrile Imines Generated from Tetrazoles. CHEM LETT 2021. [DOI: 10.1246/cl.200634] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Tomoya Miura
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto 615-8510, Japan
| | - Kohei Hagiwara
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto 615-8510, Japan
| | - Takayuki Nakamuro
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto 615-8510, Japan
| | - Yuuya Nagata
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido 001-0021, Japan
| | - Naoki Oku
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto 615-8510, Japan
| | - Masahiro Murakami
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto 615-8510, Japan
| |
Collapse
|
20
|
Lv K, Bao X. Mechanistic insights into the Rh( i)-catalyzed transannulation of 1,2,3-thiadiazoles with alkenes, alkynes, and nitriles: Does the intermediacy of α-thiavinyl Rh-carbenoids play an important role? Org Chem Front 2021. [DOI: 10.1039/d0qo01246g] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Density functional theory (DFT) calculations were performed to gain an in-depth mechanistic understanding of the Rh(i)-catalyzed transannulation of 1,2,3-thiadiazoles with alkenes, alkynes, and nitriles.
Collapse
Affiliation(s)
- Kang Lv
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
- China
| | - Xiaoguang Bao
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
- China
| |
Collapse
|
21
|
Suleman M, Lu P, Wang Y. Recent advances in the synthesis of indole embedded heterocycles with 3-diazoindolin-2-imines. Org Chem Front 2021. [DOI: 10.1039/d0qo01515f] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The preparations, reactivity and synthetic applications of 3-diazoindolin-2-imines, a valuable class of α-diazo amidines, are reviewed.
Collapse
Affiliation(s)
- Muhammad Suleman
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Ping Lu
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Yanguang Wang
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
| |
Collapse
|
22
|
Zhang Z, Gevorgyan V. Co-Catalyzed Transannulation of Pyridotriazoles with Isothiocyanates and Xanthate Esters. Org Lett 2020; 22:8500-8504. [PMID: 33044833 PMCID: PMC7655727 DOI: 10.1021/acs.orglett.0c03099] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
An efficient radical transannulation reaction of pyridotriazoles with isothiocyanates and xanthate esters was developed. This method features conversion of pyridotriazoles into two N-fused heterocyclic aromatic systems-imino-thiazolopyridines and oxo-thiazolopyridine derivatives-via one-step Co(II)-catalyzed transannulation reaction proceeding via a radical mechanism. The synthetic usefulness of the developed method was illustrated in the synthesis of amino acid derivatives and further transformations of obtained reaction products.
Collapse
Affiliation(s)
- Ziyan Zhang
- Department of Chemistry and Biochemistry, University of Texas at Dallas, 800 W. Campbell Road, Richardson, Texas 75080, United States
| | - Vladimir Gevorgyan
- Department of Chemistry and Biochemistry, University of Texas at Dallas, 800 W. Campbell Road, Richardson, Texas 75080, United States
| |
Collapse
|
23
|
Abstract
An efficient synthetic method of tetracyclic 3,4-fused indoles and dihydroindoles via rhodium-catalyzed (3+2) cycloaddition of N-tosyl-4-(2-phenoxyphenyl)-1,2,3-triazole was described. The aromatized xanthene derivatives can be achieved in a one-pot synthesis starting from 1-ethynyl-2-phenoxybenzene. The xanthene-based fused heterocycles were considered as the valuable fluorophore.
Collapse
|
24
|
Pal K, Sontakke GS, Volla CMR. Rh(II)‐Catalyzed Denitrogenative Reaction of 1,2,3‐Triazolyl Esters with Indoles or Arenes: Efficient Synthesis of Homotryptamines or Allylamines. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000632] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Kuntal Pal
- Department of ChemistryIndian Institute of Technology Bombay, Powai Mumbai 400076, India
| | - Geetanjali S. Sontakke
- Department of ChemistryIndian Institute of Technology Bombay, Powai Mumbai 400076, India
| | - Chandra M. R. Volla
- Department of ChemistryIndian Institute of Technology Bombay, Powai Mumbai 400076, India
| |
Collapse
|
25
|
Li W, Zhang J. Synthesis of Heterocycles through Denitrogenative Cyclization of Triazoles and Benzotriazoles. Chemistry 2020; 26:11931-11945. [DOI: 10.1002/chem.202000674] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 05/07/2020] [Indexed: 11/11/2022]
Affiliation(s)
- Wenbo Li
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University 3663 N. Zhongshan Road Shanghai 20062 P. R. China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University 3663 N. Zhongshan Road Shanghai 20062 P. R. China
- Department of ChemistryFudan University 2005 Songhu Road Shanghai 20048 P. R. China
| |
Collapse
|
26
|
Caiuby CAD, de Jesus MP, Burtoloso ACB. α-Imino Iridium Carbenes from Imidoyl Sulfoxonium Ylides: Application in the One-Step Synthesis of Indoles. J Org Chem 2020; 85:7433-7445. [DOI: 10.1021/acs.joc.0c00833] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Clarice A. D. Caiuby
- Instituto de Quı́mica de São Carlos, Universidade de São Paulo, CEP, 13560-970 São Carlos, SP, Brazil
| | - Matheus P. de Jesus
- Instituto de Quı́mica de São Carlos, Universidade de São Paulo, CEP, 13560-970 São Carlos, SP, Brazil
| | - Antonio C. B. Burtoloso
- Instituto de Quı́mica de São Carlos, Universidade de São Paulo, CEP, 13560-970 São Carlos, SP, Brazil
| |
Collapse
|
27
|
Hong FL, Chen YB, Ye SH, Zhu GY, Zhu XQ, Lu X, Liu RS, Ye LW. Copper-Catalyzed Asymmetric Reaction of Alkenyl Diynes with Styrenes by Formal [3 + 2] Cycloaddition via Cu-Containing All-Carbon 1,3-Dipoles: Access to Chiral Pyrrole-Fused Bridged [2.2.1] Skeletons. J Am Chem Soc 2020; 142:7618-7626. [PMID: 32237743 DOI: 10.1021/jacs.0c01918] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The generation of metal-containing 1,3-dipoles from metal carbenes represents a significant advance in 1,3-dipolar cycloaddition reactions. However, these transformations have so far been limited to reactions based on diazo compounds or triazoles as precursors. Herein, we disclose a copper-catalyzed enantioselective reaction of alkenyl N-propargyl ynamides with styrene derivatives by formal [3 + 2] cycloaddition via Cu-containing all-carbon 1,3-dipoles, which constitutes a novel way for the generation of metal-containing 1,3-dipoles via metal carbenes. This protocol allows the practical and atom-economical synthesis of valuable chiral pyrrole-fused bridged [2.2.1] skeletons in moderate to good yields (up to 90% yield) with excellent diastereoselectivities (dr > 50/1) and generally excellent enantioselectivities (up to >99% ee).
Collapse
Affiliation(s)
- Feng-Lin Hong
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People's Republic of China
| | - Yang-Bo Chen
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People's Republic of China
| | - Si-Han Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People's Republic of China
| | - Guang-Yu Zhu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People's Republic of China
| | - Xin-Qi Zhu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People's Republic of China
| | - Xin Lu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People's Republic of China
| | - Rai-Shung Liu
- Department of Chemistry, National Tsing-Hua University, Hsinchu, Taiwan 30013, Republic of China
| | - Long-Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People's Republic of China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, People's Republic of China
| |
Collapse
|
28
|
Kahar N, Jadhav P, Reddy RVR, Dawande S. A rhodium(ii) catalysed domino synthesis of azepino fused diindoles from isatin tethered N-sulfonyl-1,2,3-triazoles and indoles. Chem Commun (Camb) 2020; 56:1207-1210. [PMID: 31895362 DOI: 10.1039/c9cc08377d] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
An efficient and convenient protocol for the synthesis of a novel class of azepino fused diindoles from isatin tethered N-sulfonyl-1,2,3-triazoles and indoles has been disclosed. The reaction proceeds via denitrogenative aza-vinyl rhodium carbene formation to give a carbonyl ylide, which with indole results in 1,3-dipolar cycloaddition followed by sequential semipinacol rearrangement/ring expansion/oxidation to produce azepino fused diindoles. The reaction shows a broad substrate scope giving up to 81% yield. Furthermore, reversible catalytic hydrogenation and photophysical studies were carried out to demonstrate the application of these molecules.
Collapse
Affiliation(s)
- Nilesh Kahar
- Department of Chemistry, Institute of Chemical Technology, Mumbai, Maharashtra 400019, India.
| | | | | | | |
Collapse
|
29
|
Ageshina AA, Chesnokov GA, Topchiy MA, Alabugin IV, Nechaev MS, Asachenko AF. Making endo-cyclizations favorable again: a conceptually new synthetic approach to benzotriazoles via azide group directed lithiation/cyclization of 2-azidoaryl bromides. Org Biomol Chem 2019; 17:4523-4534. [PMID: 30994147 DOI: 10.1039/c9ob00615j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Although benzotriazoles are important and ubiquitous, currently there is only one conceptual approach to their synthesis: bridging the two ortho-amino groups with an electrophilic nitrogen atom. Herein, we disclose a new practical alternative - the endo-cyclization of 2-azidoaryl lithiums obtained in situ from 2-azido-aryl bromides. The scope of the reaction is illustrated using twenty-four examples with a variety of alkyl, alkoxy, perfluoroalkyl, and halogen substituents. We found that the directing effect of the azide group allows selective metal-halogen exchange in aryl azides containing several bromine atoms. Furthermore, (2-bromophenyl)diazomethane undergoes similar cyclization to give an indazole. Thus, cyclizations of aryl lithiums containing an ortho-X = Y = Z group emerge as a new general approach for the synthesis of aromatic heterocycles. DFT computations suggested that the observed endo-selectivity applies to the anionic cyclizations of other functionalities that undergo "1,1-additions" (i.e., azides, diazo compounds, and isonitriles). In contrast, cyclizations with the heteroatomic functionalities that follow the "1,2-addition" pattern (cyanates, thiocyanates, isocyanates, isothiocyanates, and nitriles) prefer the exo-cyclization path. Hence, such reactions expand the current understanding of stereoelectronic factors in anionic cyclizations.
Collapse
Affiliation(s)
- Alexandra A Ageshina
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 119991 Moscow, Leninskiy prospect 29, Russian Federation.
| | | | | | | | | | | |
Collapse
|
30
|
Kaur N, Ahlawat N, Bhardwaj P, Verma Y, Grewal P, Jangid NK. Synthesis of five-memberedN-heterocycles using Rh based metal catalysts. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1689271] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Navjeet Kaur
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Neha Ahlawat
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Pranshu Bhardwaj
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Yamini Verma
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Pooja Grewal
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | | |
Collapse
|
31
|
Sontakke GS, Pal K, Volla CMR. Rh(II)-Catalyzed Denitrogenative Transannulation of N-Sulfonyl-1,2,3-triazolyl Cyclohexadienones for the Synthesis of Benzofurans and Cyclopropa[cd]indole-carbaldehydes. J Org Chem 2019; 84:12198-12208. [DOI: 10.1021/acs.joc.9b01924] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Geetanjali S. Sontakke
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Kuntal Pal
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Chandra M. R. Volla
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| |
Collapse
|
32
|
Zhang Z, Yadagiri D, Gevorgyan V. Light-induced metal-free transformations of unactivated pyridotriazoles. Chem Sci 2019; 10:8399-8404. [PMID: 31803418 PMCID: PMC6844233 DOI: 10.1039/c9sc02448d] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Accepted: 07/24/2019] [Indexed: 01/01/2023] Open
Abstract
A highly efficient and practical method for incorporation of the arylmethylpyridyl moiety into diverse molecules has been developed. This method features the transition metal-free light-induced room temperature transformation of pyridotriazoles into pyridyl carbenes, which are capable of smooth arylation, X-H insertion, and cyclopropanation reactions. The synthetic usefulness of the developed method was illustrated in a facile synthesis of biologically active molecules.
Collapse
Affiliation(s)
- Ziyan Zhang
- Department of Chemistry , University of Illinois at Chicago , 845 W. Taylor St. , Chicago , Illinois 60607 , USA.,Department of Chemistry and Biochemistry , University of Texas at Dallas , 800 W Campbell RD , Richardson , Texas 75080 , USA .
| | - Dongari Yadagiri
- Department of Chemistry , University of Illinois at Chicago , 845 W. Taylor St. , Chicago , Illinois 60607 , USA.,Department of Chemistry and Biochemistry , University of Texas at Dallas , 800 W Campbell RD , Richardson , Texas 75080 , USA .
| | - Vladimir Gevorgyan
- Department of Chemistry , University of Illinois at Chicago , 845 W. Taylor St. , Chicago , Illinois 60607 , USA.,Department of Chemistry and Biochemistry , University of Texas at Dallas , 800 W Campbell RD , Richardson , Texas 75080 , USA .
| |
Collapse
|
33
|
Zhu C, Wei Y, Shi M. Rhodium(II)‐Catalyzed Intramolecular Transannulation of 4‐Methoxycyclohexa‐2,5‐dienone Tethered 1‐Sulfonyl‐1,2,3‐triazoles: Synthesis of Azaspiro[5.5]undecane Derivatives. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900290] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Cheng‐Zhi Zhu
- Key Laboratory for Advanced Materials and Institute of Fine ChemicalsSchool of Chemistry & Molecular EngineeringEast China University of Science and Technology 130 Mei Long Road Shanghai 200237 China
| | - Yin Wei
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic Chemistry, Center for Excellence in Molecular Synthesis, Chinese Academy of Sciences 354 Fenglin Lu Shanghai 200032 China
| | - Min Shi
- Key Laboratory for Advanced Materials and Institute of Fine ChemicalsSchool of Chemistry & Molecular EngineeringEast China University of Science and Technology 130 Mei Long Road Shanghai 200237 China
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic Chemistry, Center for Excellence in Molecular Synthesis, Chinese Academy of Sciences 354 Fenglin Lu Shanghai 200032 China
| |
Collapse
|
34
|
Pal K, Sontakke GS, Volla CMR. Rh(II)-Catalyzed Highly Diastereoselective Cascade Transannulation of N-Sulfonyl-1,2,3-triazoles and Vinyl Benzoxazinanones. Org Lett 2019; 21:3716-3720. [DOI: 10.1021/acs.orglett.9b01174] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Kuntal Pal
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India
| | - Geetanjali S. Sontakke
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India
| | - Chandra M. R. Volla
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India
| |
Collapse
|
35
|
Ge J, Wu X, Bao X. Rhodium(ii)-catalyzed annulation of N-sulfonyl-1,2,3-triazoles with 1,3,5-triazinanes to produce octahydro-1H-purine derivatives: a combined experimental and computational study. Chem Commun (Camb) 2019; 55:6090-6093. [DOI: 10.1039/c9cc02294e] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Rh(ii)-catalyzed annulation of N-sulfonyl-1,2,3-triazoles with 1,3,5-triazinanes leading to the octahydro-1H-purine derivatives with moderate to good yields is described in this communication.
Collapse
Affiliation(s)
- Jiemin Ge
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Xueli Wu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Xiaoguang Bao
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| |
Collapse
|
36
|
Zhu CZ, Wei Y, Shi M. Rhodium(ii)-catalyzed divergent intramolecular tandem cyclization of N- or O-tethered cyclohexa-2,5-dienones with 1-sulfonyl-1,2,3-triazole: synthesis of cyclopropa[cd]indole and benzofuran derivatives. Org Chem Front 2019. [DOI: 10.1039/c9qo00714h] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel rhodium(ii)-catalyzed divergent intramolecular tandem cyclization of N- or O-tethered cyclohexa-2,5-dienones and 1-sulfonyl-1,2,3-triazole is disclosed, affording cyclopropa[cd]indole and benzofuran derivatives in moderate to good yields.
Collapse
Affiliation(s)
- Cheng-Zhi Zhu
- State Key Laboratory of Organometallic Chemistry
- Center for Excellence in Molecular Synthesis
- University of Chinese Academy of Sciences
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
| | - Yin Wei
- State Key Laboratory of Organometallic Chemistry
- Center for Excellence in Molecular Synthesis
- University of Chinese Academy of Sciences
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
| | - Min Shi
- State Key Laboratory of Organometallic Chemistry
- Center for Excellence in Molecular Synthesis
- University of Chinese Academy of Sciences
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
| |
Collapse
|
37
|
Chen Y, Dong S, Xu X, Liu X, Feng X. Bimetallic Rhodium(II)/Indium(III) Relay Catalysis for Tandem Insertion/Asymmetric Claisen Rearrangement. Angew Chem Int Ed Engl 2018; 57:16554-16558. [DOI: 10.1002/anie.201810410] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 10/14/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Yushuang Chen
- Key Laboratory of Green Chemistry & Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 China
| | - Shunxi Dong
- Key Laboratory of Green Chemistry & Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 China
| | - Xi Xu
- Key Laboratory of Green Chemistry & Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 China
| |
Collapse
|
38
|
Chen Y, Dong S, Xu X, Liu X, Feng X. Bimetallic Rhodium(II)/Indium(III) Relay Catalysis for Tandem Insertion/Asymmetric Claisen Rearrangement. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201810410] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Yushuang Chen
- Key Laboratory of Green Chemistry & Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 China
| | - Shunxi Dong
- Key Laboratory of Green Chemistry & Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 China
| | - Xi Xu
- Key Laboratory of Green Chemistry & Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 China
| |
Collapse
|
39
|
Thorat VH, Upadhyay NS, Cheng CH. Nickel-Catalyzed Denitrogenativeortho-Arylation of Benzotriazinones with Organic Boronic Acids: an Efficient Route to Losartan and Irbesartan Drug Molecules. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800923] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | | | - Chien-Hong Cheng
- Department of Chemistry; National Tsing Hua University; Hsinchu 30013 Taiwan
| |
Collapse
|
40
|
Ren Z, Sunderland TL, Tortoreto C, Yang T, Berry JF, Musaev DG, Davies HML. Comparison of Reactivity and Enantioselectivity between Chiral Bimetallic Catalysts: Bismuth–Rhodium- and Dirhodium-Catalyzed Carbene Chemistry. ACS Catal 2018. [DOI: 10.1021/acscatal.8b03054] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Zhi Ren
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States
| | - Travis L. Sunderland
- Department of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Cecilia Tortoreto
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States
| | - Tzuhsiung Yang
- Department of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - John F. Berry
- Department of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Djamaladdin G. Musaev
- Cherry L. Emerson Center for Scientific Computation, Emory University, 1521 Dickey Drive, Atlanta, Georgia 30322, United States
| | - Huw M. L. Davies
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States
| |
Collapse
|
41
|
AbuSalim DI, Hong S, Baik MH. Palladium-Catalyzed Divergent Arylation of Triazolopyridines: A Computational Study. Chem Asian J 2018; 13:2505-2510. [DOI: 10.1002/asia.201800498] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 04/27/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Deyaa I. AbuSalim
- Center for Catalytic Hydrocarbon Functionalizations; Institute for Basic Science (IBS); Daejeon 34141 Republic of Korea
| | - Sungwoo Hong
- Center for Catalytic Hydrocarbon Functionalizations; Institute for Basic Science (IBS); Daejeon 34141 Republic of Korea
- Department of Chemistry; Korea Advanced Institute of Science and Technology (KAIST); Daejeon 34141 Republic of Korea
| | - Mu-Hyun Baik
- Center for Catalytic Hydrocarbon Functionalizations; Institute for Basic Science (IBS); Daejeon 34141 Republic of Korea
- Department of Chemistry; Korea Advanced Institute of Science and Technology (KAIST); Daejeon 34141 Republic of Korea
| |
Collapse
|
42
|
Kubiak RW, Davies HML. Rhodium-Catalyzed Intermolecular C-H Functionalization as a Key Step in the Synthesis of Complex Stereodefined β-Arylpyrrolidines. Org Lett 2018; 20:3771-3775. [PMID: 29927258 PMCID: PMC7232104 DOI: 10.1021/acs.orglett.8b01362] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The synthesis of β-arylpyrrolidines via a catalytic enantioselective intermolecular allylic C(sp)3-H functionalization of trans-alkenes followed by immediate reduction, ozonolysis, and then in situ diversification of the resulting cyclic hemiaminal to furnish highly substituted, stereoenriched β-arylpyrrolidines is reported. This methodology utilizes 4-aryl-1-sulfonyl-1,2,3-triazoles as carbene precursors and the dirhodium tetracarboxylate catalyst Rh2( S-NTTL)4. A variety of β-arylpyrrolidines were prepared in good yields with high levels of diastereo- and enantioselectivity over four linear steps, requiring only a single purification procedure.
Collapse
Affiliation(s)
- Robert W. Kubiak
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States
| | - Huw M. L. Davies
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States
| |
Collapse
|
43
|
Xu B, Zhang ZM, Zhou L, Zhang J. Direct Asymmetric Formal [3 + 2] Cycloaddition Reaction of Isocyanoesters with β-Trifluoromethyl β,β-Disubstituted Enones Leading to Optically Active Dihydropyrroles. Org Lett 2018; 20:2716-2719. [DOI: 10.1021/acs.orglett.8b00925] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bing Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
| | - Zhan-Ming Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
| | - Lujia Zhou
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
| |
Collapse
|
44
|
Nakamuro T, Hagiwara K, Miura T, Murakami M. Enantioselective Denitrogenative Annulation of 1
H
‐Tetrazoles with Styrenes Catalyzed by Rhodium. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201801283] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Takayuki Nakamuro
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University Katsura Kyoto 615-8510 Japan
| | - Kohei Hagiwara
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University Katsura Kyoto 615-8510 Japan
| | - Tomoya Miura
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University Katsura Kyoto 615-8510 Japan
| | - Masahiro Murakami
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University Katsura Kyoto 615-8510 Japan
| |
Collapse
|
45
|
Nakamuro T, Hagiwara K, Miura T, Murakami M. Enantioselective Denitrogenative Annulation of 1
H
‐Tetrazoles with Styrenes Catalyzed by Rhodium. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/anie.201801283] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Takayuki Nakamuro
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University Katsura Kyoto 615-8510 Japan
| | - Kohei Hagiwara
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University Katsura Kyoto 615-8510 Japan
| | - Tomoya Miura
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University Katsura Kyoto 615-8510 Japan
| | - Masahiro Murakami
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University Katsura Kyoto 615-8510 Japan
| |
Collapse
|
46
|
Choi S, Ha S, Park CM. α-Diazo oxime ethers for N-heterocycle synthesis. Chem Commun (Camb) 2018; 53:6054-6064. [PMID: 28516179 DOI: 10.1039/c7cc02650a] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This Feature Article introduces the preparation and synthetic utility of α-diazo oxime ethers. α-Oximino carbenes are useful synthons for N-heterocycles, and can be easily prepared from α-diazo oxime ethers as precursors. We begin with the preparation of α-diazo oxime ethers and their application in [3+2] cycloaddition. It turns out that the nature of metals bound to carbenes plays a crucial role in modulating the reactivity of α-oximino carbenes, in which copper carbenes smoothly react with enamines, whereas the less reactive enol ethers and nitriles require gold carbenes. In Section 3.2, a discussion on N-O and C-H bond activation is presented. Carbenes derived from diazo oxime ethers show unique reactivity towards N-O and C-H bond activation, in which the proximity of the two functionalities, carbene and oxime ether, dictates the preferred reaction pathways toward pyridines, pyrroles, and 2H-azirines. In Section 3.3, the development of tandem reactions based on α-diazo oxime ethers is discussed. The nature of carbenes in which whether free carbenes or metal complexes are involved dissects the pathway and forms different types of 2H-azirines. The 2H-azirine formation turned out to be an excellent platform for the tandem synthesis of N-heterocycles including pyrroles and pyridines. In the last section, we describe the electrophilic activation of 2H-azirines with vinyl carbenes and oximino carbenes. The resulting azirinium species undergo rapid ring expansion rearrangements to form pyridines and pyrazines.
Collapse
Affiliation(s)
- Subin Choi
- Department of Chemistry, UNIST (Ulsan National Institute of Science & Technology), Ulsan 44919, Korea.
| | | | | |
Collapse
|
47
|
Loy NSY, Choi S, Kim S, Park CM. The synthesis of pyrroles and oxazoles based on gold α-imino carbene complexes. Chem Commun (Camb) 2018; 52:7336-9. [PMID: 27152984 DOI: 10.1039/c6cc01742h] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Cationic gold complexes of α-oximimino carbenes have been identified to react with weak nucleophiles including enol ethers and nitriles. These findings allowed us to develop the highly efficient synthesis of pyrroles and oxazoles.
Collapse
Affiliation(s)
- Nicole S Y Loy
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Subin Choi
- Department of Chemistry, UNIST (Ulsan National Institute of Science & Technology), Ulsan 44919, Korea.
| | - Sunggak Kim
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Cheol-Min Park
- Department of Chemistry, UNIST (Ulsan National Institute of Science & Technology), Ulsan 44919, Korea.
| |
Collapse
|
48
|
Bennett JM, Shapiro JD, Choinski KN, Mei Y, Aulita SM, Dominguez GM, Majireck MM. Preparation of N-(2-alkoxyvinyl)sulfonamides from N-tosyl-1,2,3-triazoles and Subsequent Conversion to Substituted Phthalans and Phenethylamines. J Vis Exp 2018. [PMID: 29364238 DOI: 10.3791/56848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Decomposition of N-tosyl-1,2,3-triazoles with rhodium(II) acetate dimer in the presence of alcohols forms synthetically versatile N-(2-alkoxyvinyl)sulfonamides, which react under a variety of conditions to afford useful N- and O-containing compounds. Acid-catalyzed addition of alcohols or thiols to N-(2-alkoxyvinyl)sulfonamide-containing phthalans provides access to ketals and thioketals, respectively. Selective reduction of the vinyl group in N-(2-alkoxyvinyl)sulfonamide-containing phthalans via hydrogenation yields the corresponding phthalan in good yield, whereas reduction with sodium bis(2-methoxyethoxy)aluminumhydride generates a ring-opened phenethylamine analogue. Because the N-(2-alkoxyvinyl)sulfonamide functional group is synthetically versatile, but often hydrolytically unstable, this protocol emphasizes key techniques in preparing, handling, and reacting these pivotal substrates in several useful transformations.
Collapse
|
49
|
Lv Y, Ogunlana AA, Li H, Gao D, Wang C, Bao X. Understanding the chemoselectivities between carbonyl and hydroxyl groups in the Rh(ii)–azavinyl carbene involved reactions. Catal Sci Technol 2018. [DOI: 10.1039/c8cy00899j] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Computational studies were carried out to understand the chemoselectivities between carbonyl and hydroxyl groups in the Rh(ii)–AVC involved reactions.
Collapse
Affiliation(s)
- Yuanzheng Lv
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Abosede Adejoke Ogunlana
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Hongli Li
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Dafang Gao
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Chenli Wang
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Xiaoguang Bao
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| |
Collapse
|
50
|
Thorat VH, Upadhyay NS, Murakami M, Cheng CH. Nickel-Catalyzed Denitrogenative Annulation of 1,2,3-Benzotriazin-4-(3H
)-ones with Benzynes for Construction of Phenanthridinone Scaffolds. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701143] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | | | - Masahiro Murakami
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University; Katsura Kyoto 615-8510 Japan
| | - Chien-Hong Cheng
- Department of Chemistry; National Tsing Hua University; Hsinchu 30013 Taiwan
| |
Collapse
|