1
|
Zhao D, Liu M, Bai L, Liu J, Luan X. Rapid Assembly of Spironaphthalenones by Dearomative Spiroannulation of Naphthols and Dielectrophiles. J Org Chem 2023; 88:15913-15924. [PMID: 37924300 DOI: 10.1021/acs.joc.3c02067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2023]
Abstract
A novel [4 + 1] and [5 + 1] dearomative spiroannulation has been developed by the use of commercial naphthols and phenols with dielectrophiles. Various spirocycles, including spiro[4.5] and spiro[5.5] have been constructed successfully by employing four-atom or five-atom dielectrophilic synthons. This transformation was realized through a sequence of site-selective C-alkylation/dearomative spiroannulation. Moreover, the potential application of this method was exemplified by several further transformation.
Collapse
Affiliation(s)
- Dongwei Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, China
| | - Mengtian Liu
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, China
| | - Lu Bai
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, China
| | - Jingjing Liu
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, China
| | - Xinjun Luan
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, China
| |
Collapse
|
2
|
Zhang Y, Zhao K, Li X, Quintanilla CD, Zhang L. Asymmetric Dearomatization of Phenols via Ligand-Enabled Cooperative Gold Catalysis. Angew Chem Int Ed Engl 2023; 62:e202309256. [PMID: 37506307 PMCID: PMC10528085 DOI: 10.1002/anie.202309256] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/27/2023] [Accepted: 07/28/2023] [Indexed: 07/30/2023]
Abstract
By employing a chiral bifunctional phosphine ligand, a gold(I)-catalyzed efficient and highly enantioselective dearomatization of phenols is achieved via versatile metal-ligand cooperation. The reaction is proven to be remarkably general in scope, permitting substitutions at all four remaining benzene positions, accommodating electron-withdrawing groups including strongly deactivating nitro, and allowing carbon-based groups of varying steric bulk including tert-butyl at the alkyne terminus. Moreover, besides N-(o-hydroxyphenyl)alkynamides, the corresponding ynoates and ynones are all suitable substrates. Spirocyclohexadienone-pyrrol-2-ones, spirocyclohexadienone-butenolides, and spirocyclohexadenone-cyclopentenones are formed in yields up to 99 % and with ee up to 99 %.
Collapse
Affiliation(s)
- Yongliang Zhang
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA 93106, USA
| | - Ke Zhao
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA 93106, USA
| | - Xinyi Li
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA 93106, USA
| | - Carlos D. Quintanilla
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA 93106, USA
| | - Liming Zhang
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA 93106, USA
| |
Collapse
|
3
|
Gao X, Han TJ, Li BB, Hou XX, Hua YZ, Jia SK, Xiao X, Wang MC, Wei D, Mei GJ. Catalytic asymmetric dearomatization of phenols via divergent intermolecular (3 + 2) and alkylation reactions. Nat Commun 2023; 14:5189. [PMID: 37626030 PMCID: PMC10457327 DOI: 10.1038/s41467-023-40891-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 08/15/2023] [Indexed: 08/27/2023] Open
Abstract
The catalytic asymmetric dearomatization (CADA) reaction has proved to be a powerful protocol for rapid assembly of valuable three-dimensional cyclic compounds from readily available planar aromatics. In contrast to the well-studied indoles and naphthols, phenols have been considered challenging substrates for intermolecular CADA reactions due to the combination of strong aromaticity and potential regioselectivity issue over the multiple nucleophilic sites (O, C2 as well as C4). Reported herein are the chiral phosphoric acid-catalyzed divergent intermolecular CADA reactions of common phenols with azoalkenes, which deliver the tetrahydroindolone and cyclohexadienone products bearing an all-carbon quaternary stereogenic center in good yields with excellent ee values. Notably, simply adjusting the reaction temperature leads to the chemo-divergent intermolecular (3 + 2) and alkylation dearomatization reactions. Moreover, the stereo-divergent synthesis of four possible stereoisomers in a kind has been achieved via changing the sequence of catalyst enantiomers.
Collapse
Affiliation(s)
- Xiang Gao
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, People's Republic of China
| | - Tian-Jiao Han
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, People's Republic of China
| | - Bei-Bei Li
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, People's Republic of China
| | - Xiao-Xiao Hou
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, People's Republic of China
| | - Yuan-Zhao Hua
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, People's Republic of China
| | - Shi-Kun Jia
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, People's Republic of China
| | - Xiao Xiao
- Institute of Pharmaceutical Science and Technology, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
| | - Min-Can Wang
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, People's Republic of China
| | - Donghui Wei
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, People's Republic of China
| | - Guang-Jian Mei
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, People's Republic of China.
| |
Collapse
|
4
|
Zhang N, Ye Y, Bai L, Liu J, Wang H, Luan X. Transition metal-free dearomatization of halonaphthols with C(sp3)-electrophiles. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.10.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
5
|
Li Z, Li D, Xiang H, Huang J, Zheng Y, Zhu C, Cui X, Pi C, Xu H. Copper-catalyzed asymmetric propargylic substitution of anthrones and propargylic esters. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.08.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
6
|
Zhang SS, Xue J, Gu Q, Jiang X, You SL. Dearomatization reaction of β-naphthols with disulfurating reagents. Org Biomol Chem 2021; 19:8761-8771. [PMID: 34581384 DOI: 10.1039/d1ob01731d] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
p-TsOH-catalyzed intermolecular dearomatization reactions of β-naphthols with disulfurating reagents were developed. Various β-naphthalenones bearing a quaternary carbon stereogenic center were obtained smoothly in good to excellent yields with high chemoselectivity in the presence of 5 mol% p-TsOH. This reaction features mild reaction conditions and excellent functional group tolerance.
Collapse
Affiliation(s)
- Shan-Shan Zhang
- Chang-Kung Chuang Institute, East China Normal University, Shanghai 200062, China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China.
| | - Jiahui Xue
- Shanghai Key Laboratory of Green Chemistry and Chemical Process, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China.
| | - Qing Gu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China.
| | - Xuefeng Jiang
- Shanghai Key Laboratory of Green Chemistry and Chemical Process, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China.
| | - Shu-Li You
- Chang-Kung Chuang Institute, East China Normal University, Shanghai 200062, China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China.
| |
Collapse
|
7
|
Das BG, Shah S, Das A, Singh VK. Cu-Catalyzed Chemodivergent, Stereoselective Propargylic Dearomatization and Etherification of 2-Naphthols. Org Lett 2021; 23:6262-6266. [PMID: 34374540 DOI: 10.1021/acs.orglett.1c02027] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The first stereoselective propargylic dearomatization of 2-naphthol derivatives is reported using a chiral CuII-L10 complex. The reaction shows chemodivergent reactivity and produced propargyl dearomatization and etherification product for differently substituted 2-naphthols. Both the reactions generate the desired products in high yields with excellent chemo- and stereoselectivities (up to 99% ee, dr = 9:1) by using only 2 mol % catalyst loading. Dearomatization products contain a contiguous all-carbon quaternary-tertiary stereocenter and a terminal alkyne functionality.
Collapse
Affiliation(s)
- Braja Gopal Das
- Department of Chemistry, Indian Institution of Technology Kanpur, Kanpur-208016, Uttar Pradesh, India
| | - Sadhna Shah
- Department of Chemistry, Indian Institution of Technology Kanpur, Kanpur-208016, Uttar Pradesh, India
| | - Arko Das
- Department of Chemistry, Indian Institution of Technology Kanpur, Kanpur-208016, Uttar Pradesh, India
| | - Vinod K Singh
- Department of Chemistry, Indian Institution of Technology Kanpur, Kanpur-208016, Uttar Pradesh, India
| |
Collapse
|
8
|
Wang L, Jiang F, Gao X, Wang W, Wu Y, Guo H, Zheng B. Base‐Mediated Decarboxylative [3+2] Annulation of Ethynyl Benzoxazinanones and Benzimidamides: Synthesis of Imidazole Derivatives. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001550] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Lan Wang
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
| | - Feng Jiang
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
| | - Xing Gao
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
| | - Wei Wang
- College of Public Health Zhengzhou University Zhengzhou 450001 People's Republic of China
| | - Yongjun Wu
- College of Public Health Zhengzhou University Zhengzhou 450001 People's Republic of China
| | - Hongchao Guo
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
| | - Bing Zheng
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
| |
Collapse
|
9
|
Pedrazzani R, An J, Monari M, Bandini M. New Chiral BINOL‐Based Phosphates for Enantioselective [Au(I)]‐Catalyzed Dearomatization of β‐Naphthols with Allenamides. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100166] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Riccardo Pedrazzani
- Dipartimento di Chimica “Giacomo Ciamician” Alma Mater Studiorum – Università di Bologna Via Selmi 2 40126 Bologna Italy
| | - Juzeng An
- Dipartimento di Chimica “Giacomo Ciamician” Alma Mater Studiorum – Università di Bologna Via Selmi 2 40126 Bologna Italy
| | - Magda Monari
- Dipartimento di Chimica “Giacomo Ciamician” Alma Mater Studiorum – Università di Bologna Via Selmi 2 40126 Bologna Italy
| | - Marco Bandini
- Dipartimento di Chimica “Giacomo Ciamician” Alma Mater Studiorum – Università di Bologna Via Selmi 2 40126 Bologna Italy
- Consorzio C.I.N.M.P.I.S. Via Selmi 2 40126 Bologna Italy
| |
Collapse
|
10
|
Zhong D, Jiang F, Shen S, Wang L, Wang W, Wu Y, Xiao Y, Guo H. Formal [3+2] Annulation of Copper‐Allenylidenes with 3‐Oxo‐3‐Arylpropanenitriles: Synthesis of Tetrasubstituted Furans. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000929] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- De Zhong
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
| | - Feng Jiang
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
| | - Siyong Shen
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
| | - Lan Wang
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
| | - Wei Wang
- College of Public Health Zhengzhou University Zhengzhou 450001 People's Republic of China
| | - Yongjun Wu
- College of Public Health Zhengzhou University Zhengzhou 450001 People's Republic of China
| | - Yumei Xiao
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
| | - Hongchao Guo
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
| |
Collapse
|
11
|
Dong W, Yuan Y, Xie X, Zhang Z. Visible-Light-Driven Dearomatization Reaction toward the Formation of Spiro[4.5]deca-1,6,9-trien-8-ones. Org Lett 2020; 22:528-532. [DOI: 10.1021/acs.orglett.9b04283] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wuheng Dong
- Medicine Center, Guangxi University of Science and Technology, Liuzhou, Guangxi 545006, China
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yao Yuan
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Xiaomin Xie
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Zhaoguo Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| |
Collapse
|
12
|
Yang L, Pu X, Niu D, Fu Z, Zhang X. Copper-Catalyzed Asymmetric Propargylation of Indolizines. Org Lett 2019; 21:8553-8557. [PMID: 31638825 DOI: 10.1021/acs.orglett.9b03032] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Methods to diversify indolizines are valuable for the discovery of medications and fluorescent molecules. The utilization of copper-catalyzed asymmetric propargylation to install a terminal alkyne handle on indolizine heterocycle is reported. This method delivers C3-propargylation products from C2-substituted indolizines or C1-propargylation products from C2,C3-disubstituted indolizines through a stereoconvergent pathway.
Collapse
Affiliation(s)
- Lei Yang
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and School of Chemical Engineering , Sichuan University , Chengdu 610041 , China
| | - Xiang Pu
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and School of Chemical Engineering , Sichuan University , Chengdu 610041 , China
| | - Dawen Niu
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and School of Chemical Engineering , Sichuan University , Chengdu 610041 , China
| | - Zhengyan Fu
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and School of Chemical Engineering , Sichuan University , Chengdu 610041 , China
| | - Xia Zhang
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and School of Chemical Engineering , Sichuan University , Chengdu 610041 , China
| |
Collapse
|
13
|
Tsuchiya N, Nishikata T. Construction of Vicinal Quaternary Carbons via Cu-catalyzed Dearomative Radical Addition. CHEM LETT 2019. [DOI: 10.1246/cl.190247] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Naoki Tsuchiya
- Graduate School of Science and Engineering, Yamaguchi University, 2-16-1 Tokiwadai, Ube, Yamaguchi 755-8611, Japan
| | - Takashi Nishikata
- Graduate School of Science and Engineering, Yamaguchi University, 2-16-1 Tokiwadai, Ube, Yamaguchi 755-8611, Japan
| |
Collapse
|
14
|
Wang H, Zhang J, Tu Y, Zhang J. Phosphine‐Catalyzed Enantioselective Dearomative [3+2]‐Cycloaddition of 3‐Nitroindoles and 2‐Nitrobenzofurans. Angew Chem Int Ed Engl 2019; 58:5422-5426. [DOI: 10.1002/anie.201900036] [Citation(s) in RCA: 117] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Indexed: 01/18/2023]
Affiliation(s)
- Huamin Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University Shanghai 200062 P. R. China
| | - Junyou Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University Shanghai 200062 P. R. China
| | - Youshao Tu
- College of Chemistry and Life ScienceAdvanced Institute of Materials ScienceChangchun University of Technology 2055 N. Yan'an Avenue Changchun 130012 P. R. China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University Shanghai 200062 P. R. China
- Department of ChemistryFudan University 2005 Songhu Road Shanghai 200438 P. R. China
| |
Collapse
|
15
|
Wang H, Zhang J, Tu Y, Zhang J. Phosphine‐Catalyzed Enantioselective Dearomative [3+2]‐Cycloaddition of 3‐Nitroindoles and 2‐Nitrobenzofurans. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201900036] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Huamin Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University Shanghai 200062 P. R. China
| | - Junyou Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University Shanghai 200062 P. R. China
| | - Youshao Tu
- College of Chemistry and Life ScienceAdvanced Institute of Materials ScienceChangchun University of Technology 2055 N. Yan'an Avenue Changchun 130012 P. R. China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University Shanghai 200062 P. R. China
- Department of ChemistryFudan University 2005 Songhu Road Shanghai 200438 P. R. China
| |
Collapse
|
16
|
Roh SW, Choi K, Lee C. Transition Metal Vinylidene- and Allenylidene-Mediated Catalysis in Organic Synthesis. Chem Rev 2019; 119:4293-4356. [PMID: 30768261 DOI: 10.1021/acs.chemrev.8b00568] [Citation(s) in RCA: 141] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
With their mechanistic novelty and various modalities of reactivity, transition metal unsaturated carbene (alkenylidene) complexes have emerged as versatile intermediates for new reaction discovery. In particular, the past decade has witnessed remarkable advances in the chemistry of metal vinylidenes and allenylidenes, leading to the evolution of a diverse array of new catalytic transformations that are mechanistically distinct from those developed in the previous two decades. This review aims to provide a survey of the recent achievements in the development of organic reactions that make use of transition metal alkenylidenes as catalytic intermediates and their applications to organic synthesis.
Collapse
Affiliation(s)
- Sang Weon Roh
- Department of Chemistry , Seoul National University , Seoul 08826 , Republic of Korea
| | - Kyoungmin Choi
- Department of Chemistry , Seoul National University , Seoul 08826 , Republic of Korea
| | - Chulbom Lee
- Department of Chemistry , Seoul National University , Seoul 08826 , Republic of Korea
| |
Collapse
|
17
|
Yang B, Zhai X, Feng S, Hu D, Deng Y, Shao Z. Organocatalyzed Intermolecular Asymmetric Allylic Dearomatization of Both α- and β-Naphthols. Org Lett 2018; 21:330-334. [PMID: 30585495 DOI: 10.1021/acs.orglett.8b03934] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The first highly stereoselective intermolecular catalytic asymmetric dearomatization (CADA) of α-naphthols through C-C formation and the first asymmetric allylic dearomatization of naphthols by chiral organocatalysis have been achieved. These new and complete atom-economic reactions provide enantioriched α- and β-naphthalenones bearing an all-carbon quaternary center.
Collapse
Affiliation(s)
- Binmiao Yang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology , Yunnan University , Kunming 650091 , China
| | - Xuejie Zhai
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology , Yunnan University , Kunming 650091 , China
| | - Shubo Feng
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology , Yunnan University , Kunming 650091 , China
| | - Dongyan Hu
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology , Yunnan University , Kunming 650091 , China
| | - Yuhua Deng
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology , Yunnan University , Kunming 650091 , China
| | - Zhihui Shao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology , Yunnan University , Kunming 650091 , China
| |
Collapse
|
18
|
Herndon JW. The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2017. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.08.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
19
|
An J, Lombardi L, Grilli S, Bandini M. PPh3AuTFA Catalyzed in the Dearomatization of 2-Naphthols with Allenamides. Org Lett 2018; 20:7380-7383. [DOI: 10.1021/acs.orglett.8b03018] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Juzeng An
- Dipartimento di Chimica “G. Ciamician”, Alma Mater Studiorum−Università di Bologna, Via Selmi 2, 4016, Bologna, Italy
| | - Lorenzo Lombardi
- Dipartimento di Chimica “G. Ciamician”, Alma Mater Studiorum−Università di Bologna, Via Selmi 2, 4016, Bologna, Italy
| | - Stefano Grilli
- Dipartimento di Chimica “G. Ciamician”, Alma Mater Studiorum−Università di Bologna, Via Selmi 2, 4016, Bologna, Italy
| | - Marco Bandini
- Dipartimento di Chimica “G. Ciamician”, Alma Mater Studiorum−Università di Bologna, Via Selmi 2, 4016, Bologna, Italy
| |
Collapse
|
20
|
Dong W, Yuan Y, Gao X, Keranmu M, Li W, Xie X, Zhang Z. Visible-Light-Induced Intermolecular Dearomative Cyclization of 2-Bromo-1,3-dicarbonyl Compounds and Alkynes: Synthesis of Spiro[4.5]deca-1,6,9-trien-8-ones. Org Lett 2018; 20:5762-5765. [PMID: 30192154 DOI: 10.1021/acs.orglett.8b02463] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A visible-light-induced photocatalytic intermolecular dearomative cyclization of 2-bromo-1,3-dicarbonyl compounds and alkynes afforded biologically important spirocarbocycle structures in moderate to good yields via a 5-exo-dig radical cyclization under mild reaction conditions. A 5.0 mmol scale dearomatization reaction proceeded smoothly with 95% yield even when the catalyst loading was reduced to 0.1 mol %, suggesting that this method was suitable for large-scale synthesis.
Collapse
Affiliation(s)
- Wuheng Dong
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China
| | - Yao Yuan
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China
| | - Xiaoshuang Gao
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China
| | - Miladili Keranmu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China
| | - Wanfang Li
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China
| | - Xiaomin Xie
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China
| | - Zhaoguo Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , China
| |
Collapse
|
21
|
Jiang F, Feng X, Wang R, Gao X, Jia H, Xiao Y, Zhang C, Guo H. Asymmetric [3 + 3] Annulation of Copper–Allenylidenes with Pyrazolones: Synthesis of Chiral 1,4-Dihydropyrano[2,3-c]pyrazoles. Org Lett 2018; 20:5278-5281. [DOI: 10.1021/acs.orglett.8b02214] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Feng Jiang
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Xinping Feng
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Rou Wang
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Xing Gao
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Hao Jia
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Yumei Xiao
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Cheng Zhang
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Hongchao Guo
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China
| |
Collapse
|
22
|
Watanabe K, Miyazaki Y, Okubo M, Zhou B, Tsuji H, Kawatsura M. Nickel-Catalyzed Asymmetric Propargylic Amination of Propargylic Carbonates Bearing an Internal Alkyne Group. Org Lett 2018; 20:5448-5451. [DOI: 10.1021/acs.orglett.8b02325] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kouichi Watanabe
- Department of Chemistry, College of Humanities & Sciences, Nihon University, Sakurajosui, Setagaya-ku, Tokyo 156-8550, Japan
| | - Yusuke Miyazaki
- Department of Chemistry, College of Humanities & Sciences, Nihon University, Sakurajosui, Setagaya-ku, Tokyo 156-8550, Japan
| | - Masataka Okubo
- Department of Chemistry, College of Humanities & Sciences, Nihon University, Sakurajosui, Setagaya-ku, Tokyo 156-8550, Japan
| | - Biao Zhou
- Department of Chemistry, College of Humanities & Sciences, Nihon University, Sakurajosui, Setagaya-ku, Tokyo 156-8550, Japan
| | - Hiroaki Tsuji
- Department of Chemistry, College of Humanities & Sciences, Nihon University, Sakurajosui, Setagaya-ku, Tokyo 156-8550, Japan
| | - Motoi Kawatsura
- Department of Chemistry, College of Humanities & Sciences, Nihon University, Sakurajosui, Setagaya-ku, Tokyo 156-8550, Japan
| |
Collapse
|
23
|
Tsuchida K, Yuki M, Nakajima K, Nishibayashi Y. Copper- and Borinic Acid-catalyzed Propargylic Etherification of Propargylic Carbonates with Benzyl Alcohols. CHEM LETT 2018. [DOI: 10.1246/cl.180123] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Kohei Tsuchida
- Department of Systems Innovation, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Masahiro Yuki
- Department of Systems Innovation, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kazunari Nakajima
- Department of Systems Innovation, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yoshiaki Nishibayashi
- Department of Systems Innovation, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| |
Collapse
|
24
|
Wang YF, Shao JJ, Wang B, Chu MM, Qi SS, Du XH, Xu DQ. Asymmetric Brominative Dearomatization of Naphthols Catalyzed by Chiral Copper Complexes. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800067] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yi-Feng Wang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; Hangzhou 310014 People's Republic of China
| | - Juan-Juan Shao
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; Hangzhou 310014 People's Republic of China
| | - Biao Wang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; Hangzhou 310014 People's Republic of China
| | - Ming-Ming Chu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; Hangzhou 310014 People's Republic of China
| | - Suo-Suo Qi
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; Hangzhou 310014 People's Republic of China
| | - Xiao-Hua Du
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; Hangzhou 310014 People's Republic of China
| | - Dan-Qian Xu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; Hangzhou 310014 People's Republic of China
| |
Collapse
|
25
|
Shao W, Wang Y, Yang ZP, Zhang X, You SL. Efficient Synthesis of N-Alkylated 4-Pyridones by Copper-Catalyzed Intermolecular Asymmetric Propargylic Amination. Chem Asian J 2018. [PMID: 29542867 DOI: 10.1002/asia.201800373] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Copper-catalyzed intermolecular asymmetric propargylic amination with 4-hydroxypyridines has been realized for the first time. In the presence of Cu complex derived from Pybox ligand, the N-propargylated 4-pyridones were obtained under mild reaction conditions with up to 99 % yield and 95 % ee. The Pybox ligand bearing a 4-F-phenyl substituent plays a key role for the high enantioselectivity. The products can be easily transformed to the core structure of quinolizidine alkaloids.
Collapse
Affiliation(s)
- Wen Shao
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, China
| | - Ye Wang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, China
| | - Ze-Peng Yang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, China
| | - Xiao Zhang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, China
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, China.,Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, 300072, China
| |
Collapse
|
26
|
Cheng Q, Zhang F, Cai Y, Guo YL, You SL. Stereodivergent Synthesis of Tetrahydrofuroindoles through Pd-Catalyzed Asymmetric Dearomative Formal [3+2] Cycloaddition. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201711873] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Qiang Cheng
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 China
| | - Fang Zhang
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 China
| | - Yue Cai
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 China
| | - Yin-Long Guo
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 China
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 China
- Collaborative Innovation Center of Chemical Science and Engineering; Tianjin China
| |
Collapse
|
27
|
Cheng Q, Zhang F, Cai Y, Guo YL, You SL. Stereodivergent Synthesis of Tetrahydrofuroindoles through Pd-Catalyzed Asymmetric Dearomative Formal [3+2] Cycloaddition. Angew Chem Int Ed Engl 2018; 57:2134-2138. [DOI: 10.1002/anie.201711873] [Citation(s) in RCA: 140] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2017] [Indexed: 01/01/2023]
Affiliation(s)
- Qiang Cheng
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 China
| | - Fang Zhang
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 China
| | - Yue Cai
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 China
| | - Yin-Long Guo
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 China
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 China
- Collaborative Innovation Center of Chemical Science and Engineering; Tianjin China
| |
Collapse
|
28
|
Liu ZT, Hu XP. Copper-catalyzed, silver-mediated formal [3+2] cycloaddition of simple alkynes with β-ketoesters through propargylic C(sp3)–H functionalization. Chem Commun (Camb) 2018; 54:14100-14103. [DOI: 10.1039/c8cc08013e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The propargylic C(sp3)–H functionalization strategy has been successfully employed in the copper-catalyzed [3+2] cycloaddition of simple alkynes with β-ketoesters. Under optimal conditions, the reaction proceeds smoothly to give a variety of highly functionalized furans in moderate to high yields.
Collapse
Affiliation(s)
- Zhen-Ting Liu
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
- University of Chinese Academy of Sciences
| | - Xiang-Ping Hu
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| |
Collapse
|
29
|
Roy R, Saha S. Scope and advances in the catalytic propargylic substitution reaction. RSC Adv 2018; 8:31129-31193. [PMID: 35548716 PMCID: PMC9085608 DOI: 10.1039/c8ra04481c] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 08/27/2018] [Indexed: 11/26/2022] Open
Abstract
Nucleophilic displacement of the propargylic alcohol is one of the sought-after methods in the current scenario. The highly nucleophilic alkyne functional moiety along with its considerably acidic terminal hydrogen atom allows the propargylic unit to play a crucial role in organic synthesis by offering a handle for further synthetic transformations. Until 2000, the most fundamental propargylic substitution reaction was the Nicolas reaction, a multi-step transformation, developed in 1972, which involved cobalt as a stoichiometric promoter. Therefore, the direct catalytic substitution of propargylic alcohols was a highly desirable method for development. The pioneering work on the Ru-catalyzed propargylic substitution reaction in 2000 encouraged many researchers to develop several novel catalytic propargylic substitution reactions, which have made rapid progress since then. The purpose of this review is to emphasise the involvement of diverse types of Lewis acid, transition metal and Brønsted acid catalysts in the propargylic substitution reaction and provide an updated summary of the recent developments in this field. The selected examples presented here are the most significant and relevant ones and we believe that this will help the readers to comprehend the scope of the propargylic substitution reaction with diverse types of catalysts and will envisage the scientific community for the future developments in this field. Direct nucleophilic displacement of the alpha-hydroxy of the propargylic alcohol is one of the sought-after methods in the current scenario. An updated summary of the recent developments in this field is presented here.![]()
Collapse
Affiliation(s)
| | - Satyajit Saha
- Department of Dyestuff Technology
- ICT Mumbai
- Mumbai
- India
| |
Collapse
|
30
|
An J, Parodi A, Monari M, Reis MC, Lopez CS, Bandini M. Gold-Catalyzed Dearomatization of 2-Naphthols with Alkynes. Chemistry 2017; 23:17473-17477. [DOI: 10.1002/chem.201704942] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 11/10/2017] [Indexed: 12/24/2022]
Affiliation(s)
- Juzeng An
- Dipartimento di Chimica “G. Ciamician”, Alma Mater Studiorum; Università di Bologna; Via Selmi 2 40126 Bologna Italy
| | - Adriano Parodi
- Dipartimento di Chimica “G. Ciamician”, Alma Mater Studiorum; Università di Bologna; Via Selmi 2 40126 Bologna Italy
| | - Magda Monari
- Dipartimento di Chimica “G. Ciamician”, Alma Mater Studiorum; Università di Bologna; Via Selmi 2 40126 Bologna Italy
| | | | | | - Marco Bandini
- Dipartimento di Chimica “G. Ciamician”, Alma Mater Studiorum; Università di Bologna; Via Selmi 2 40126 Bologna Italy
| |
Collapse
|
31
|
Shao L, Hu XP. Cu-Catalyzed asymmetric Friedel–Crafts propargylic alkylation of phenol derivatives. Org Biomol Chem 2017; 15:9837-9844. [DOI: 10.1039/c7ob02133j] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A copper-catalyzed asymmetric Friedel–Crafts propargylic alkylation of electron-rich phenol derivatives with a variety of propargylic esters has been described. With Cu(OTf)2 decorated with a chiral tridentate ketimine P,N,N-ligand as the catalyst, the reaction proceeded smoothly in high yields and with good to excellent enantioselectivities (up to 95% ee).
Collapse
Affiliation(s)
- Long Shao
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
- University of Chinese Academy of Sciences
| | - Xiang-Ping Hu
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| |
Collapse
|