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Zhuo KF, Xu WY, Gong TJ, Fu Y. The dual-catalyzed boryldifluoroallylation of alkynes: an efficient method for the synthesis of skipped gem-difluorodienes. Chem Commun (Camb) 2020; 56:2340-2343. [DOI: 10.1039/c9cc08485a] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The Cu/Pd-catalyzed boryldifluoroallylation of alkynes was achieved, providing the skipped gem-difluorodiene scaffolds with high regio- and stereoselectivity. An array of synthetic building blocks can be obtained via further transformations.
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Affiliation(s)
- Kai-Feng Zhuo
- Hefei National Laboratory for Physical Sciences at the Microscale
- iChEM
- CAS Key Laboratory of Urban Pollutant Conversion
- Anhui Province Key Laboratory of Biomass Clean Energy
- University of Science and Technology of China
| | - Wen-Yan Xu
- Hefei National Laboratory for Physical Sciences at the Microscale
- iChEM
- CAS Key Laboratory of Urban Pollutant Conversion
- Anhui Province Key Laboratory of Biomass Clean Energy
- University of Science and Technology of China
| | - Tian-Jun Gong
- Hefei National Laboratory for Physical Sciences at the Microscale
- iChEM
- CAS Key Laboratory of Urban Pollutant Conversion
- Anhui Province Key Laboratory of Biomass Clean Energy
- University of Science and Technology of China
| | - Yao Fu
- Hefei National Laboratory for Physical Sciences at the Microscale
- iChEM
- CAS Key Laboratory of Urban Pollutant Conversion
- Anhui Province Key Laboratory of Biomass Clean Energy
- University of Science and Technology of China
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52
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Cheng LJ, Mankad NP. Cu-Catalyzed Carbonylative Silylation of Alkyl Halides: Efficient Access to Acylsilanes. J Am Chem Soc 2019; 142:80-84. [PMID: 31851513 DOI: 10.1021/jacs.9b12043] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A Cu-catalyzed carbonylative silylation of unactivated alkyl halides has been developed, enabling efficient synthesis of alkyl-substituted acylsilanes in high yield. A variety of functional groups are tolerated under the mild reaction conditions, and primary, secondary, and tertiary alkyl halides are all applicable. The practical utility of this method has been demonstrated in the synthesis of acylsilanes bearing different silyl groups as well as in situ reduction of a product to the corresponding α-hydroxylsilane in one pot. Mechanistic experiments indicate that a silylcopper intermediate activates alkyl halides by single electron transfer to form alkyl radical intermediates and that carbon-halogen bond cleavage is not involved in the rate-determining step.
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Affiliation(s)
- Li-Jie Cheng
- Department of Chemistry , University of Illinois at Chicago , 845 West Taylor Street , Chicago , Illinois 60607 , United States
| | - Neal P Mankad
- Department of Chemistry , University of Illinois at Chicago , 845 West Taylor Street , Chicago , Illinois 60607 , United States
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53
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Perry GJP, Jia T, Procter DJ. Copper-Catalyzed Functionalization of 1,3-Dienes: Hydrofunctionalization, Borofunctionalization, and Difunctionalization. ACS Catal 2019. [DOI: 10.1021/acscatal.9b04767] [Citation(s) in RCA: 95] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Gregory J. P. Perry
- Department of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, U.K
| | - Tao Jia
- Department of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, U.K
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, People’s Republic of China
| | - David J. Procter
- Department of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, U.K
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54
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Chen XW, Zhu L, Gui YY, Jing K, Jiang YX, Bo ZY, Lan Y, Li J, Yu DG. Highly Selective and Catalytic Generation of Acyclic Quaternary Carbon Stereocenters via Functionalization of 1,3-Dienes with CO 2. J Am Chem Soc 2019; 141:18825-18835. [PMID: 31703165 DOI: 10.1021/jacs.9b09721] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The catalytic asymmetric functionalization of readily available 1,3-dienes is highly important, but current examples are mostly limited to the construction of tertiary chiral centers. The asymmetric generation of acyclic products containing all-carbon quaternary stereocenters from substituted 1,3-dienes represents a more challenging, but highly desirable, synthetic process for which there are very few examples. Herein, we report the highly selective copper-catalyzed generation of chiral all-carbon acyclic quaternary stereocenters via functionalization of 1,3-dienes with CO2. A variety of readily available 1,1-disubstituted 1,3-dienes, as well as a 1,3,5-triene, undergo reductive hydroxymethylation with high chemo-, regio-, E/Z-, and enantioselectivities. The reported method features good functional group tolerance, is readily scaled up to at least 5 mmol of starting diene, and generates chiral products that are useful building blocks for further derivatization. Systemic mechanistic investigations using density functional theory calculations were performed and provided the first theoretical investigation for an asymmetric transformation involving CO2. These computational results indicate that the 1,2-hydrocupration of 1,3-diene proceeds with high π-facial selectivity to generate an (S)-allylcopper intermediate, which further induces the chirality of the quaternary carbon center in the final product. The 1,4-addition of an internal allylcopper complex, which differs from previous reports involving terminal allylmetallic intermediates, to CO2 kinetically determines the E/Z- and regioselectivity. The rapid reduction of a copper carboxylate intermediate to the corresponding silyl-ether in the presence of Me(MeO)2SiH provides the exergonic impetus and leads to chemoselective hydroxymethylation rather than carboxylation. These results provide new insights for guiding further development of asymmetric C-C bond formations with CO2.
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Affiliation(s)
- Xiao-Wang Chen
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China
| | - Lei Zhu
- School of Chemistry and Chemical Engineering , Chongqing University , Chongqing 400030 , P. R. China
| | - Yong-Yuan Gui
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China.,College of Chemistry and Materials Science , Sichuan Normal University , Chengdu 610068 , P. R. China
| | - Ke Jing
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China
| | - Yuan-Xu Jiang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China
| | - Zhi-Yu Bo
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China
| | - Yu Lan
- School of Chemistry and Chemical Engineering , Chongqing University , Chongqing 400030 , P. R. China.,College of Chemistry, and Institute of Green Catalysis , Zhengzhou University , Zhengzhou 450001 , P. R. China
| | - Jing Li
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China
| | - Da-Gang Yu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China.,Beijing National Laboratory for Molecular Sciences , Beijing 100190 , P. R. China
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55
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Feng JJ, Xu Y, Oestreich M. Ligand-controlled diastereodivergent, enantio- and regioselective copper-catalyzed hydroxyalkylboration of 1,3-dienes with ketones. Chem Sci 2019; 10:9679-9683. [PMID: 32015801 PMCID: PMC6977547 DOI: 10.1039/c9sc03531a] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Accepted: 08/17/2019] [Indexed: 12/20/2022] Open
Abstract
A copper-catalyzed three-component coupling of 1,3-dienes, bis(pinacolato)diboron, and ketones allows for the chemo-, regio-, diastereo- and enantioselective assembly of densely functionalized tertiary homoallylic alcohols. The relative configuration of the vicinal stereocenters is controlled by the chiral ligand employed. Subsequent transformations illustrate the versatility of these valuable chiral building blocks.
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Affiliation(s)
- Jian-Jun Feng
- Institut für Chemie , Technische Universität Berlin , Strasse des 17. Juni 115 , 10623 Berlin , Germany .
| | - Yan Xu
- Institut für Chemie , Technische Universität Berlin , Strasse des 17. Juni 115 , 10623 Berlin , Germany .
| | - Martin Oestreich
- Institut für Chemie , Technische Universität Berlin , Strasse des 17. Juni 115 , 10623 Berlin , Germany .
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56
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Li D, Park Y, Yoon W, Yun H, Yun J. Asymmetric Synthesis of 1-Benzazepine Derivatives via Copper-Catalyzed Intramolecular Reductive Cyclization. Org Lett 2019; 21:9699-9703. [PMID: 31696719 DOI: 10.1021/acs.orglett.9b03853] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
An asymmetric construction of enantioenriched 2,3-substituted-1-benzazepine derivatives containing a cyclic tertiary amine moiety was developed by copper-catalyzed reductive intramolecular cyclization of (E)-dienyl arenes with a tethered ketimine. This protocol involves tandem chemo-, regio-, and enantioselective hydrocupration and asymmetric cyclization in the presence of a chiral bisphosphine-copper catalyst. Under mild conditions, a broad range of 1-benzazepine derivatives was obtained in good to high yields with high degrees of diastereoselectivity and enantioselectivity.
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Affiliation(s)
- DingXi Li
- Department of Chemistry and Institute of Basic Science , Sungkyunkwan University , Suwon 16419 , Korea
| | - Yeji Park
- Department of Chemistry and Institute of Basic Science , Sungkyunkwan University , Suwon 16419 , Korea
| | - Woojin Yoon
- Department of Energy Systems Research and Department of Chemistry , Ajou University , Suwon 16499 , Korea
| | - Hoseop Yun
- Department of Energy Systems Research and Department of Chemistry , Ajou University , Suwon 16499 , Korea
| | - Jaesook Yun
- Department of Chemistry and Institute of Basic Science , Sungkyunkwan University , Suwon 16419 , Korea
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57
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Pan H, Han MY, Li P, Wang L. “On Water” Direct Catalytic Vinylogous Aldol Reaction of Silyl Glyoxylates. J Org Chem 2019; 84:14281-14290. [DOI: 10.1021/acs.joc.9b01945] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hong Pan
- Department of Chemistry, Huaibei Normal University, Huaibei, Anhui 235000, P.R. China
| | - Man-Yi Han
- Department of Chemistry, Huaibei Normal University, Huaibei, Anhui 235000, P.R. China
| | - Pinhua Li
- Department of Chemistry, Huaibei Normal University, Huaibei, Anhui 235000, P.R. China
| | - Lei Wang
- Department of Chemistry, Huaibei Normal University, Huaibei, Anhui 235000, P.R. China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P.R. China
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58
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Han J, Zhou W, Zhang PC, Wang H, Zhang R, Wu HH, Zhang J. Design and Synthesis of WJ-Phos, and Application in Cu-Catalyzed Enantioselective Boroacylation of 1,1-Disubstituted Allenes. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02080] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Jie Han
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, People’s Republic of China
| | - Wei Zhou
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, People’s Republic of China
| | - Pei-Chao Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, People’s Republic of China
| | - Huamin Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, People’s Republic of China
| | - Ronghua Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, People’s Republic of China
| | - Hai-Hong Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, People’s Republic of China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, People’s Republic of China
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, People’s Republic of China
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59
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