1
|
Li W, Shi S, Cao M, Gao W, Zhang X, Li W, Yu Y, Li T. Palladium(II)-Catalyzed Norbornene-Mediated Selective meta-C-H Silylation for the Synthesis of Arylsilanes from Primary Benzamides. Org Lett 2024. [PMID: 38900141 DOI: 10.1021/acs.orglett.4c01841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
A palladium(II)-catalyzed norbornene-mediated remote selective meta-C-H silylation of primary benzamides was developed for the synthesis of arylsilanes. Such a conversion provides access to a range of arylsilanes with exclusive selectivity using norbornene (NBE) as the meta-C-H activator. The amide directing group can be detached simultaneously through C-C bond cleavage or undergo a dehydration reaction pathway to form nitriles.
Collapse
Affiliation(s)
- Wenguang Li
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Henan 473061, China
| | - Shukui Shi
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Henan 473061, China
| | - Man Cao
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Henan 473061, China
| | - Wenchao Gao
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Henan 473061, China
| | - Xu Zhang
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Henan 473061, China
| | - Wentao Li
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Henan 473061, China
| | - Yongqi Yu
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Henan 473061, China
| | - Ting Li
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Henan 473061, China
| |
Collapse
|
2
|
Chandrasekaran R, Selvam K, Rajeshkumar T, Chinnusamy T, Maron L, Rasappan R. Anti-Selective Carbosilylation: Nickel-Catalyzed Multicomponent Reaction of Solid Me 3SiZnI. Angew Chem Int Ed Engl 2024; 63:e202318689. [PMID: 38547324 DOI: 10.1002/anie.202318689] [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: 12/05/2023] [Indexed: 04/25/2024]
Abstract
The stereodefined and highly substituted vinylsilanes are essential building blocks for constructing complex organic molecules. Transition metal-mediated silylmetalation of alkynes was developed to overcome the limitations of conventional hydrosilylations; however, a very limited study was carried out to utilize transient vinylmetal species in cross-coupling reactions. Moreover, they produce syn-adduct, and the anti-selective cross-coupling is still unknown and highly desired. Silylzinc reagents are highly functional group tolerant, however, their synthesis from pyrophoric silyllithium and dissolved lithium salts hampers cross-coupling reactions. Our novel solid silylzinc reagents circumvent these constraints are employed in the anti-selective synthesis of vinylsilanes via a multi-component reaction involving Me3SiZnI, terminal alkynes, and activated alkyl halides. An intensive computational and experimental investigation of the mechanism reveals an equilibrium between the intermediate syn- and anti-adducts; the greater barrier at the single electron reduction of alkyl halides and the thermodynamic stability of the Ni(III) adduct determine the anti-selectivity.
Collapse
Affiliation(s)
- Revathi Chandrasekaran
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Kerala, India
| | - Keerthika Selvam
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Kerala, India
| | - Thayalan Rajeshkumar
- Laboratoire de Physique et Chimie des Nano-objets, Institut National des Sciences Appliquées, 31077, Toulouse, Cedex 4, France
| | - Tamilselvi Chinnusamy
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Kerala, India
| | - Laurent Maron
- Laboratoire de Physique et Chimie des Nano-objets, Institut National des Sciences Appliquées, 31077, Toulouse, Cedex 4, France
| | - Ramesh Rasappan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Kerala, India
| |
Collapse
|
3
|
Karad SN, Saito H, Shimokawa J, Yorimitsu H. Regioselective Anti-Silyllithiation of Propargylic Alcohols. J Org Chem 2024; 89:3677-3683. [PMID: 36342367 DOI: 10.1021/acs.joc.2c01795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Among the known hydrosilylation or carbosilylation conditions of alkynes, anti-addition of the two units across the triple bond is considered rare compared to the syn counterpart. For anti-silylative vicinal difunctionalizations, transition-metal catalysts, such as ruthenium or palladium complexes, are generally required. Accordingly, silyl alkali metals have not been employed for those anti-addition transformations. Here we demonstrate that silyllithiums can add across the triple bond of a series of propargylic alkoxides regioselectively in an anti-fashion. Upon treatment with a variety of electrophiles, the trisubstituted alkenyl lithium intermediates were transformed into highly functionalized β-silyl allylic alcohols with high regiocontrol, eventually providing tri- or tetrasubstituted alkenylsilanes stereoselectively. A classic trick for anti-addition with propargylic alkoxides has transformed anti-silylative functionalizations into a robust and reliable strategy.
Collapse
Affiliation(s)
- Somnath N Karad
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Hayate Saito
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Jun Shimokawa
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Hideki Yorimitsu
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| |
Collapse
|
4
|
Li W, Cao M, Zhang C, Shi S, Liu J, Li W, Zhang X, Yu Y, Li T. Palladium/NBE-Catalyzed Regioselective C-H Silylation: Access to Divergent Silicon-Containing Indoles. Org Lett 2024; 26:1143-1147. [PMID: 38299994 DOI: 10.1021/acs.orglett.3c04109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2024]
Abstract
A palladium/norbornene (NBE)-catalyzed regioselective C-H silylation of free NH-indoles is reported. This protocol uses Pd(OAc)2 as the catalyst and Cu(OAc)2 as the oxidant, and the reaction relies on the control of NBE as a switch. The reaction tolerates various functional groups, and a series of silicon-containing indoles were directly synthesized in 30%-94% yields.
Collapse
Affiliation(s)
- Wenguang Li
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Henan 473061, China
| | - Man Cao
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Henan 473061, China
| | - Chunyan Zhang
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Henan 473061, China
| | - Shukui Shi
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Henan 473061, China
| | - Juan Liu
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Henan 473061, China
| | - Wentao Li
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Henan 473061, China
| | - Xu Zhang
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Henan 473061, China
| | - Yongqi Yu
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Henan 473061, China
| | - Ting Li
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Henan 473061, China
| |
Collapse
|
5
|
Li J, Hong C, Niu Y, Wang B, Jiang H. Palladium-Catalyzed Cyclization/Alkenylation of Ynone Oximes with Vinylsilanes for the Assembly of Isoxazolyl Vinylsilanes. Chem Asian J 2024:e202301122. [PMID: 38224122 DOI: 10.1002/asia.202301122] [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: 12/18/2023] [Revised: 01/13/2024] [Accepted: 01/15/2024] [Indexed: 01/16/2024]
Abstract
A palladium-catalyzed cascade cyclization/alkenylation for the assembly of synthetically valuable isoxazolyl vinylsilane derivative has been accomplished. Easily accessible ynone oximes, and available vinylsilane agents were used as the reaction starting materials This protocol features broad substrate scope, good functional group tolerance, and good step- and atom-economy. Remarkably, this approach provides a new approach for the construction of structurally diverse isoxazolyl-containing vinylsilanes with high molecular complexity, showing a promising application in synthetic and pharmaceutical chemistry.
Collapse
Affiliation(s)
- Jianxiao Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, P. R China
- Guangdong Province Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, 512005, Shaoguan, P. R. China
| | - Chenjing Hong
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, P. R China
| | - Yanan Niu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, P. R China
| | - Bowen Wang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, P. R China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, P. R China
| |
Collapse
|
6
|
Maliszewski BP, Casillo E, Lambert P, Nahra F, Cazin CSJ, Nolan SP. Simply accessible platinum(II) complexes enabling alkene hydrosilylation at ppm catalyst loadings. Chem Commun (Camb) 2023; 59:14017-14020. [PMID: 37942945 DOI: 10.1039/d3cc05033e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
An efficient olefin hydrosilylation protocol utilising Pt(II)-thioether-based pre-catalysts is reported. These simple and readily available complexes exhibit excellent catalytic performance and offer significant advantages over existing alternatives, enabling rapid and high conversions at ppm-level catalyst loadings.
Collapse
Affiliation(s)
- Benon P Maliszewski
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S3), Ghent 9000, Belgium.
| | - Eleonora Casillo
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S3), Ghent 9000, Belgium.
| | - Perrine Lambert
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S3), Ghent 9000, Belgium.
| | - Fady Nahra
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S3), Ghent 9000, Belgium.
- VITO (Flemish Institute for Technological Research), Separation and Conversion Technology, Boeretang 200, Mol 2400, Belgium.
| | - Catherine S J Cazin
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S3), Ghent 9000, Belgium.
| | - Steven P Nolan
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S3), Ghent 9000, Belgium.
| |
Collapse
|
7
|
Chindan B, Syam A, Mahendran H, Rasappan R. Synthesis of α-Vinyltrialkoxysilanes via Nickel-Mediated Cross-Electrophile Coupling Reactions. Org Lett 2023; 25:7751-7756. [PMID: 37844143 DOI: 10.1021/acs.orglett.3c03206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
Vinyltrialkoxysilanes are indispensable for organic synthesis, particularly cross-coupling reactions. Hydrosilylation of alkynes inevitably yields α- and β-isomers of vinyltrialkoxysilanes even with complex ligands and catalysts, limiting its usage in organic synthesis. We report the synthesis of α-vinyltrialkoxysilanes via cross-electrophile C(sp2)-C(sp2) coupling of bromoalkenes. The method is quite compatible with functional groups under milder reaction conditions. The gram-scale synthesis of most substrates is impressive. The intermediacy of vinyl iodide and radical escape rebound path are supported by mechanistic studies.
Collapse
Affiliation(s)
- Bincy Chindan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala 695551, India
| | - Anagha Syam
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala 695551, India
| | - Hariharan Mahendran
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala 695551, India
| | - Ramesh Rasappan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala 695551, India
| |
Collapse
|
8
|
Li W, Yu Y, Zhang X, Zhang C, Chen M, Li T. NBE-Controlled Palladium-Catalyzed Intermolecular Selective C-H Silylation of Boronic Acids. J Org Chem 2023; 88:14659-14669. [PMID: 37787482 DOI: 10.1021/acs.joc.3c01655] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
An efficient palladium-catalyzed intermolecular selective C-H silylation of boronic acids is described. The combination of palladium catalyst with copper oxidant enables ortho-selective C-H silylation by employing hexamethyldisilane as the trimethylsilyl source, which relies on the control of NBE derivatives as a switch, thus providing straightforward access to divergent organosilicon compounds.
Collapse
Affiliation(s)
- Wenguang Li
- Drug Synthesis Engineering Technology Research Center of Henan Province for Photoelectric Green Catalysis, Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, China
- State Key Laboratory of Motor Vehicle Biofuel Technology, Henan Tianguan Enterprise Group Company Limited, Nanyang, Henan 473000, China
| | - Yongqi Yu
- Drug Synthesis Engineering Technology Research Center of Henan Province for Photoelectric Green Catalysis, Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, China
| | - Xu Zhang
- Drug Synthesis Engineering Technology Research Center of Henan Province for Photoelectric Green Catalysis, Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, China
| | - Chunyan Zhang
- Drug Synthesis Engineering Technology Research Center of Henan Province for Photoelectric Green Catalysis, Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, China
| | - Ming Chen
- Drug Synthesis Engineering Technology Research Center of Henan Province for Photoelectric Green Catalysis, Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, China
| | - Ting Li
- Drug Synthesis Engineering Technology Research Center of Henan Province for Photoelectric Green Catalysis, Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, China
| |
Collapse
|
9
|
Wilson JW, Su B, Yoritate M, Shi JX, Hartwig JF. Iridium-Catalyzed, Site-Selective Silylation of Secondary C(sp 3)-H Bonds in Secondary Alcohols and Ketones. J Am Chem Soc 2023; 145:19490-19495. [PMID: 37638874 DOI: 10.1021/jacs.3c03127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/29/2023]
Abstract
We report the iridium-catalyzed, stereoselective conversion of secondary alcohols or ketones to anti-1,3-diols by the silylation of secondary C-H bonds γ to oxygen and oxidation of the resulting oxasilolane. The silylation of secondary C-H bonds in secondary silyl ethers derived from alcohols or ketones is enabled by a catalyst formed from a simple bisamidine ligand. The silylation occurs with high selectivity at a secondary C-H bond γ to oxygen over distal primary or proximal secondary C-H bonds. Initial mechanistic investigations suggest that the source of the newly achieved reactivity is a long catalyst lifetime resulting from the high binding constant of the strongly electron-donating bisamidine ligand.
Collapse
Affiliation(s)
- Jake W Wilson
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Bo Su
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Makoto Yoritate
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Jake X Shi
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - John F Hartwig
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| |
Collapse
|
10
|
Li S, Tong WY, Zhou Q, Yu X, Shi JL, Li SS, Qu S, Wang J. Palladium-Catalyzed Oxidative Coupling of Dibenzosiloles with α-Diazo Esters: Formal Replacement of the Silyl Group with Carbenes. Organometallics 2023. [DOI: 10.1021/acs.organomet.3c00015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Affiliation(s)
- Shichao Li
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Wen-Yan Tong
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, Hunan, China
| | - Qi Zhou
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Xiang Yu
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Jiang-Ling Shi
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Shu-Sen Li
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Shuanglin Qu
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, Hunan, China
| | - Jianbo Wang
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| |
Collapse
|
11
|
Cai J, Zhang J, Zhou X. Selective Si-C(sp 3) bond cleavage of a silyl-bridged amido alkyl ligand in an yttrium complex. Dalton Trans 2023; 52:3807-3814. [PMID: 36866686 DOI: 10.1039/d3dt00149k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Compared with Si-C(sp2 and sp) bonds bearing neighboring π-bond hyperconjugative interactions, the activation of robust Si-C(sp3) bonds has proved to be a challenge. Herein, two distinct Si-C(sp3) bond cleavages have been realized by rare-earth-mediated and nucleophilic addition of unsaturated substrates. The reactions of TpMe2Y[κ2-(C,N)-CH(SiH2Ph)SiMe2NSiMe3](THF) (1) with CO or CS2 gave two endocyclic Si-C bond cleavage products, TpMe2Y[κ2-(O,N)-OCCH(SiH2Ph)SiMe2NSiMe3](THF) (2) and TpMe2Y[κ2-(S,N)-SSiMe2NSiMe3](THF) (3), respectively. However, 1 reacted with nitriles such as PhCN and p-R'C6H4CH2CN in a 1 : 1 molar ratio to yield the exocyclic Si-C bond products TpMe2Y[κ2-(N,N)-N(SiH2Ph)C(R)CHSiMe2NSiMe3](THF) (R = Ph (4); R = C6H5CH2 (6H); R = p-F-C6H4CH2 (6F); and R = p-MeO-C6H4CH2 (6MeO)), respectively. Moreover, complex 4 can continuously react with an excess of PhCN to form a TpMe2-supported yttrium complex with a novel pendant silylamido-substituted β-diketiminato ligand, TpMe2Y[κ3-(N,N,N)-N(SiH2Ph)C(Ph)CHC(Ph)N-SiMe2NSiMe3](PhCN) (5).
Collapse
Affiliation(s)
- Jiamin Cai
- Department of Chemistry, Fudan University, No. 2005, Songhu Road, Shanghai 200438, China.
| | - Jie Zhang
- Department of Chemistry, Fudan University, No. 2005, Songhu Road, Shanghai 200438, China.
| | - Xigeng Zhou
- Department of Chemistry, Fudan University, No. 2005, Songhu Road, Shanghai 200438, China.
| |
Collapse
|
12
|
Hu Y, Peng J, Hu B, Wang J, Jing J, Lin J, Liu X, Qi X, Li J. Stereoselective C-O silylation and stannylation of alkenyl acetates. Nat Commun 2023; 14:1454. [PMID: 36922528 PMCID: PMC10017796 DOI: 10.1038/s41467-023-37192-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 03/03/2023] [Indexed: 03/17/2023] Open
Abstract
Facile formation of carbon-heteroatom bonds is a long-standing objective in synthetic organic chemistry. However, direct cross-coupling with readily accessible alkenyl acetates via inert C‒O bond-cleavage for the carbon-heteroatom bond construction remains challenging. Here we report a practical preparation of stereoselective tri- and tetrasubstituted alkenyl silanes and stannanes by performing cobalt-catalyzed C‒O silylation and stannylation of alkenyl acetates using silylzinc pivalate and stannylzinc chloride as the nucleophiles. This protocol features a complete control of chemoselectivity, stereoselectivity, as well as excellent functional group compatibility. The resulting alkenyl silanes and stannanes show high reactivities in arylation and alkenylation by Hiyama and Stille reactions. The synthetic utility is further illustrated by the facile late-stage modifications of natural products and drug-like molecules. Mechanistic studies suggest that the reaction might involve a chelation-assisted oxidative insertion of cobalt species to C‒O bond. We anticipate that our findings should prove instrumental for potential applications of this technology to organic syntheses and drug discoveries in medicinal chemistry.
Collapse
Affiliation(s)
- Ying Hu
- Key Laboratory of Organic Synthesis of Jiangsu Province, Suzhou Key Laboratory of Pathogen Bioscience and Anti-infective Medicine, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Ren-Ai Road 199, Suzhou, 215123, P. R. China
| | - Jiali Peng
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, P. R. China.,School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang, Henan, 453003, P. R. China
| | - Binjing Hu
- Key Laboratory of Organic Synthesis of Jiangsu Province, Suzhou Key Laboratory of Pathogen Bioscience and Anti-infective Medicine, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Ren-Ai Road 199, Suzhou, 215123, P. R. China
| | - Jixin Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, Suzhou Key Laboratory of Pathogen Bioscience and Anti-infective Medicine, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Ren-Ai Road 199, Suzhou, 215123, P. R. China
| | - Jing Jing
- Key Laboratory of Organic Synthesis of Jiangsu Province, Suzhou Key Laboratory of Pathogen Bioscience and Anti-infective Medicine, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Ren-Ai Road 199, Suzhou, 215123, P. R. China
| | - Jie Lin
- Key Laboratory of Organic Synthesis of Jiangsu Province, Suzhou Key Laboratory of Pathogen Bioscience and Anti-infective Medicine, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Ren-Ai Road 199, Suzhou, 215123, P. R. China
| | - Xingchen Liu
- Key Laboratory of Organic Synthesis of Jiangsu Province, Suzhou Key Laboratory of Pathogen Bioscience and Anti-infective Medicine, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Ren-Ai Road 199, Suzhou, 215123, P. R. China
| | - Xiaotian Qi
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, P. R. China
| | - Jie Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, Suzhou Key Laboratory of Pathogen Bioscience and Anti-infective Medicine, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Ren-Ai Road 199, Suzhou, 215123, P. R. China. .,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, P. R. China.
| |
Collapse
|
13
|
Ye ZH, Gou FH, Wu Y, Li CY, Wang P. Diverse Synthesis of Alkenylsilanes via Pd-Catalyzed Alkenyl C-H Silylation. Org Lett 2023; 25:2145-2150. [PMID: 36921249 DOI: 10.1021/acs.orglett.3c00633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Abstract
Here, we disclose a general approach for the diverse synthesis of alkenylsilanes in a highly efficient, stereoselective, and atom-economic manner by leveraging the palladium-catalyzed disilylation reaction of 2-bromostyrene derivatives with hexamethyldisilane, which is suitable for the preparation of a series of disubstituted, trisubstituted, and tetrasubstituted alkenylsilanes. Furthermore, the resulting tetrasubstituted alkenylsilanes could be readily transformed into the corresponding diarylated benzosiloles, which have been proven to be a potential AIE material and a fluorene material.
Collapse
Affiliation(s)
- Zi-Hang Ye
- Department of Chemistry, Key Laboratory of Surface and Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou 310018, P. R. China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, CAS, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Fei-Hu Gou
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, CAS, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Yichen Wu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, CAS, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Chuan-Ying Li
- Department of Chemistry, Key Laboratory of Surface and Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou 310018, P. R. China
| | - Peng Wang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, CAS, 345 Lingling Road, Shanghai 200032, P. R. China.,CAS Key Laboratory of Energy Regulation Materials, Shanghai Institute of Organic Chemistry, CAS, 345 Lingling Road, Shanghai 200032, P. R. China.,School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou 310024, P. R. China
| |
Collapse
|
14
|
Wang X, Chai GL, Hou YJ, Zhou MQ, Chang J. Enantioselective Synthesis of Chiral Organosilicon Compounds by Organocatalytic Asymmetric Conjugate Addition of Boronic Acids to β-Silyl-α,β-Unsaturated Ketones. J Org Chem 2023. [PMID: 36812405 DOI: 10.1021/acs.joc.3c00057] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Herein, we report (R)-3,3'-(3,5-(CF3)2-C6H3)2-BINOL-catalyzed enantioselective conjugate addition of organic boronic acids to β-silyl-α,β-unsaturated ketones, furnishing moderate to excellent yields of the corresponding β-silyl carbonyl compounds with stereogenic centers in excellent enantioselectivities (up to 98% ee). Moreover, the catalytic system features mild reaction conditions, high efficiency, broad substrate scope, and easy scale-up.
Collapse
Affiliation(s)
- Xiao Wang
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Guo-Li Chai
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Ya-Jing Hou
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Ming-Qian Zhou
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Junbiao Chang
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| |
Collapse
|
15
|
Gao J, He C. Chiral Silanols: Strategies and Tactics for Their Synthesis. Chemistry 2023; 29:e202203475. [PMID: 36617499 DOI: 10.1002/chem.202203475] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 01/05/2023] [Accepted: 01/08/2023] [Indexed: 01/10/2023]
Abstract
Silanols are valuable and important compounds, which have found widespread applications in the field of materials science, synthetic chemistry, and medicinal chemistry. Although a handful of approaches have been developed for the synthesis of various silanols, access to enantioenriched silicon-stereogenic silanols remains underdeveloped. This Concept article intends to summarize and highlight recent advances in the construction of silicon-stereogenic silanols and endeavors to encourage further research in this area.
Collapse
Affiliation(s)
- Jihui Gao
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Chuan He
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China.,Key Laboratory of Organosilicon Chemistry, and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, P. R. China
| |
Collapse
|
16
|
Lokolkar MS, Kolekar YA, Jagtap PA, Bhanage BM. Cu-Catalyzed C-C Coupling Reactions. TOP ORGANOMETAL CHEM 2023. [DOI: 10.1007/3418_2022_81] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
|
17
|
Ye T, Zhao J, Zheng WX, Zhang J, Wang Z, Zhang FL. Synthesis of structurally diverse silicon-incorporated indolines via silyl radical-triggered radical cascade reactions. Org Chem Front 2023. [DOI: 10.1039/d3qo00153a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
Structurally diverse silicon-incorporated indolines were synthesized via a silyl radical-triggered radical addition–translocation–cyclization (RATC) process.
Collapse
|
18
|
Pawley SB, Conner AM, Omer HM, Watson DA. Development of a General Method for the Hiyama-Denmark Cross-Coupling of Tetrasubstituted Vinyl Silanes. ACS Catal 2022; 12:13108-13115. [PMID: 36817085 PMCID: PMC9933925 DOI: 10.1021/acscatal.2c03981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
General conditions for the Hiyama-Denmark cross-coupling of tetrasubstituted vinyl silanes and aryl halides are reported. Prior reports of Hiyama-Denmark reactions of tetrasubstituted vinyl silanes have required the use of vinyl silanols or silanolates, which are challenging to handle, or internally activated vinyl silanes, which lack structural generality. Now, unactivated tetrasubstituted vinyl silanes, bearing bench-stable tetraorganosilicon centers, and aryl halides can be coupled. The key to this discovery is the identification of dimethyl(5-methylfuryl)vinylsilanes as bench stable and easily prepared cross-coupling partners that are readily activated under mild conditions in Hiyama-Denmark couplings. These palladium-catalyzed cross-couplings proceed well with aryl chlorides, though aryl bromides and iodides are also tolerated, and the reactions display high stereospecificity in the formation of tetrasubstituted alkenes. In addition, only a mild base (KOSiMe3) and common solvents (THF/DMA) are required, and importantly toxic additives (such as 18-crown-6) are not needed. We also show that these conditions are equally applicable to Hiyama-Denamrk coupling of trisubstituted vinyl silanes.
Collapse
Affiliation(s)
| | | | - Humair M. Omer
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716
| | - Donald A. Watson
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716
| |
Collapse
|
19
|
Le TMT, Brégent T, Jubault P, Poisson T. Photocatalytic
E
→
Z Contra
‐Thermodynamic Isomerization of Vinyl Silanes with Lewis Base. Chemistry 2022; 28:e202201514. [PMID: 35652371 PMCID: PMC9541780 DOI: 10.1002/chem.202201514] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Indexed: 11/22/2022]
Abstract
Herein, we disclosed the contra‐thermodynamic E→Z isomerization of alkenyl silanes, according to the in situ formation of a chromophoric species, in the presence of rac‐BINAP as the catalyst. The reaction carried out in DMSO or CH3CN under irradiation at 405 nm allowed the interconversion of the E‐isomers into the Z‐congeners in good to excellent yields and outstanding Z/E selectivities, on 18 examples. Finally, the mechanism of this E→Z isomerization was studied to get insight into the reaction mechanism.
Collapse
Affiliation(s)
- Thi Minh Thi Le
- Normandie Univ. INSA Rouen UNIROUEN CNRS COBRA (UMR 6014) 76000 Rouen France
| | - Thibaud Brégent
- Normandie Univ. INSA Rouen UNIROUEN CNRS COBRA (UMR 6014) 76000 Rouen France
| | - Philippe Jubault
- Normandie Univ. INSA Rouen UNIROUEN CNRS COBRA (UMR 6014) 76000 Rouen France
| | - Thomas Poisson
- Normandie Univ. INSA Rouen UNIROUEN CNRS COBRA (UMR 6014) 76000 Rouen France
- Institut Universitaire de France 1 rue Descartes 75231 Paris France
| |
Collapse
|
20
|
Transition Metal Catalyzed Hiyama Cross-Coupling: Recent Methodology Developments and Synthetic Applications. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27175654. [PMID: 36080422 PMCID: PMC9458230 DOI: 10.3390/molecules27175654] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/22/2022] [Accepted: 08/26/2022] [Indexed: 11/17/2022]
Abstract
Hiyama cross-coupling is a versatile reaction in synthetic organic chemistry for the construction of carbon-carbon bonds. It involves the coupling of organosilicons with organic halides using transition metal catalysts in good yields and high enantioselectivities. In recent years, hectic progress has been made by researchers toward the synthesis of diversified natural products and pharmaceutical drugs using the Hiyama coupling reaction. This review emphasizes the recent synthetic developments and applications of Hiyama cross-coupling.
Collapse
|
21
|
Najafi M, Alinezhad H, Ghasemi S, Yeganeh-Salman E. Synthesis of nanocatalyst Pd immobilized on ZPD as efficient and reusable for Sonogashira cross-coupling reaction. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
|
22
|
Zhang X, Zhang F, Li X, Lu MZ, Meng X, Huang L, Luo H. Direct Synthesis of Biphenyl-2-carbonitriles by Rh(III)-Catalyzed C-H Hiyama Cross-Coupling in Water. Org Lett 2022; 24:5029-5033. [PMID: 35822841 DOI: 10.1021/acs.orglett.2c01754] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This method represents an efficient rhodium(III)-catalyzed o-C-H arylation of readily available benzimidate derivatives with diverse arylsilanes in water as a sustainable solvent, enabling the straightforward synthesis of potentially useful biphenyl-2-carbonitrile derivatives. This silicon-based protocol employs benzimidates as both an efficacious directing group and the source of a nitrile group.
Collapse
Affiliation(s)
- Xiuqi Zhang
- Department of Chemistry & Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Fukuan Zhang
- Department of Chemistry & Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Xiaolan Li
- Department of Chemistry & Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Ming-Zhu Lu
- College of Advanced Interdisciplinary Science and Technology, Henan University of Technology, Zhenzhou 450001, China
| | - Xin Meng
- Department of Chemistry & Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Lei Huang
- Department of Chemistry & Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Haiqing Luo
- Department of Chemistry & Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
| |
Collapse
|
23
|
ghosh SK. β‐Silylmethylene malonate as versatile reagent in organic synthesis. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- sunil kumar ghosh
- Bhabha Atomic Research Centre Bio-Organic Division Trombay 400085 Mumbai INDIA
| |
Collapse
|
24
|
Wu Y, Wang P. Silicon-Stereogenic Monohydrosilane: Synthesis and Applications. Angew Chem Int Ed Engl 2022; 61:e202205382. [PMID: 35594056 DOI: 10.1002/anie.202205382] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Indexed: 12/15/2022]
Abstract
Optically active organosilanes have been demonstrated to be versatile chiral reagents in synthetic chemistry since the early seminal contributions by Sommer and Corriu. Among these silicon-containing chiral architectures, monohydrosilanes, which bear a Si-H bond, hold a unique position because of their facile transformations through stereospecific Si-carbon or Si-heteroatom bond-formation reactions. In addition, those compounds have also been leveraged as chiral reagents for alcohol resolution, chiral auxiliaries, mechanistic probes, as well as potential optoelectronic materials. This Minireview comprehensively summarizes the synthesis and synthetic applications of silicon-stereogenic monohydrosilanes, particularly the advances in the transition-metal-catalyzed asymmetric synthesis of this class of functional molecules.
Collapse
Affiliation(s)
- Yichen Wu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, CAS, 345 Lingling Road, Shanghai, 200032, P. R. China
| | - Peng Wang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, CAS, 345 Lingling Road, Shanghai, 200032, P. R. China.,CAS Key Laboratory of Energy Regulation Materials, Shanghai Institute of Organic Chemistry, CAShcshr1, 345 Lingling Road, Shanghai, 200032, P. R. China.,School of Chemistry and Material Sciences Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China
| |
Collapse
|
25
|
Wu Y, Wang P. Silicon‐Stereogenic Monohydrosilane: Synthesis and Applications. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yichen Wu
- Shanghai Institute of Organic Chemistry State Key Laboratory of Organometallic Chemistry 345 Lingling Road 200032 Shanghai CHINA
| | - Peng Wang
- Shanghai Institute of Organic Chemistry State key laboratory of organometallic chemistry 345 Lingling Rd 200032 Shanghai CHINA
| |
Collapse
|
26
|
Zhou L, Qiu J, Wang C, Zhang F, Yang K, Song Q. Synthesis of α-Aminosilanes by 1,2-Metalate Rearrangement Deoxygenative Silylation of Aromatic Amides. Org Lett 2022; 24:3249-3253. [PMID: 35475726 DOI: 10.1021/acs.orglett.2c01041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
An efficient nickel-catalyzed deoxygenative silylation reaction of aromatic amides with silylboranes in the presence of a Sm/SmI2 system for the construction of α-aminosilanes is described. This strategy provides a direct method for synthesizing α-aminosilanes with high efficiency and good functional group compatibility and includes readily accessible starting materials and valuable products.
Collapse
Affiliation(s)
- Lu Zhou
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian 350108, China
| | - Jian Qiu
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian 350108, China
| | - Cece Wang
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian 350108, China
| | - Feng Zhang
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian 350108, China
| | - Kai Yang
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian 350108, China
| | - Qiuling Song
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian 350108, China.,Institute of Next Generation Matter Transformation, College of Materials Science Engineering, Huaqiao University, Xiamen, Fujian 361021, China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| |
Collapse
|
27
|
Lee SH, Ryu HG, Jeon SL, Jeong IH. Efficient route to 1‐aryl‐2,2‐difluoroethenyl(
t
‐butyldimethyl)silanes via cross‐coupling reaction of 2,2‐difluoro‐1‐(
t
‐butyldimethyl)silylethenyl tosylate with arylboronic acids. B KOREAN CHEM SOC 2022. [DOI: 10.1002/bkcs.12527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Seo Hee Lee
- Department of Chemistry and Medical Chemistry Yonsei University Wonju South Korea
| | - Hyun Gyu Ryu
- Department of Chemistry and Medical Chemistry Yonsei University Wonju South Korea
| | - Sung Lan Jeon
- Department of Chemistry and Medical Chemistry Yonsei University Wonju South Korea
| | - In Howa Jeong
- Department of Chemistry and Medical Chemistry Yonsei University Wonju South Korea
| |
Collapse
|
28
|
Delaney CP, Marron DP, Shved AS, Zare RN, Waymouth RM, Denmark SE. Potassium Trimethylsilanolate-Promoted, Anhydrous Suzuki-Miyaura Cross-Coupling Reaction Proceeds via the "Boronate Mechanism": Evidence for the Alternative Fork in the Trail. J Am Chem Soc 2022; 144:4345-4364. [PMID: 35230833 PMCID: PMC8930609 DOI: 10.1021/jacs.1c08283] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Previous studies have shown that the critical transmetalation step in the Suzuki-Miyaura cross-coupling proceeds through a mechanism wherein an arylpalladium hydroxide complex reacts with an aryl boronic acid, termed the oxo-palladium pathway. Moreover, these same studies have established that the reaction between an aryl boronate and an arylpalladium halide complex (the boronate pathway) is prohibitively slow. Herein, studies on isolated intermediates, along with kinetic analysis, have demonstrated that the Suzuki-Miyaura reaction promoted by potassium trimethylsilanolate (TMSOK) proceeds through the boronate pathway, in contrast with other, established systems. Furthermore, an unprecedented, binuclear palladium(I) complex containing a μ-phenyl bridging ligand was characterized by NMR spectroscopy, mass spectrometry, and computational methods. Density functional theory (DFT) calculations suggest that the binuclear complex exhibits an open-shell ground electronic state, and reaction kinetics implicate the complex in the catalytic cycle. These results expand the breadth of potential mechanisms by which the Suzuki-Miyaura reaction can occur, and the novel binuclear palladium complex discovered has broad implications for palladium-mediated cross-coupling reactions of aryl halides.
Collapse
Affiliation(s)
- Connor P Delaney
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Daniel P Marron
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Alexander S Shved
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Richard N Zare
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Robert M Waymouth
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Scott E Denmark
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| |
Collapse
|
29
|
Gong HP, Quan ZJ, Wang XC. Palladium-catalyzed Hiyama cross-couplings of pyrimidin-2-yl tosylates with organosilanes. JOURNAL OF CHEMICAL RESEARCH 2022. [DOI: 10.1177/17475198211067163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
An efficient palladium-catalyzed Hiyama reaction between various pyrimidin-2-yl tosylates with organosilanes has been developed. The use of CuCl with TBAF as additive is essential for promotion of the construction of the carbon–carbon bond. This procedure shows wide functional group tolerance for electrophilic pyrimidin-2-yl tosylates and has been extended to aromatic amino-substituted pyrimidin-2-yl tosylates, affording the desired C2-aryl and alkenyl pyrimidine derivatives in good to excellent yields.
Collapse
Affiliation(s)
- Hai-Peng Gong
- College of Science, Gansu Agricultural University, Lanzhou, P.R. China
| | - Zheng-Jun Quan
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, P.R. China
| | - Xi-Cun Wang
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, P.R. China
| |
Collapse
|
30
|
Xue Y, Guo Z, Chen X, Li J, Zou D, Wu Y, Wu Y. Copper-promoted difunctionalization of unactivated alkenes with silanes. Org Biomol Chem 2022; 20:989-994. [PMID: 35018960 DOI: 10.1039/d1ob02318g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
An efficient copper-catalyzed cascade difunctionalization of N-allyl anilines toward the synthesis of silylated indolines using commercially available silanes has been reported. This strategy provides a new avenue for the synthesis of a diverse array of indolines in reasonable yields. Preliminary mechanistic investigations indicate that the reaction probably proceeds via a radical pathway with unactivated alkenes as radical acceptors and simple silanes as radical precursors. This protocol is distinguished by its atom economy, broad substrate scope and readily available starting materials.
Collapse
Affiliation(s)
- Yingying Xue
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450052, People's Republic of China.
| | - Zhuangzhuang Guo
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450052, People's Republic of China.
| | - Xiaoyu Chen
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450052, People's Republic of China.
| | - Jingya Li
- TetranovBiopharm, LLC., Zhengzhou, 450052, People's Republic of China
| | - Dapeng Zou
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450052, People's Republic of China.
| | - Yangjie Wu
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450052, People's Republic of China.
| | - Yusheng Wu
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450052, People's Republic of China. .,Tetranov International, Inc., 100 Jersey Avenue, Suite A340, New Brunswick, NJ 08901, USA.
| |
Collapse
|
31
|
Yang X, Wu C, Su W, Yu J. Mechanochemical C−X/C−H Functionalization: An Alternative Strategy Access to Pharmaceuticals. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101440] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xinjie Yang
- Zhejiang University of Technology Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Chaowang Road 18# 310014 Hangzhou CHINA
| | - Chongyang Wu
- Zhejiang University of Technology Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Chaowang Road 18# 310014 Hangzhou CHINA
| | - Weike Su
- Zhejiang University of Technology Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Chaowang Road 18# 310014 Hangzhou CHINA
| | - Jingbo Yu
- Zhejiang University of Technology Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Chaowang Road 18# 310014 Hangzhou CHINA
| |
Collapse
|
32
|
Kirchhoff JL, Koller SG, Louven K, Strohmann C. Crystal structure and Hirshfeld surface analysis of 1-[(benzyldimethylsilyl)methyl]-1-ethylpiperidin-1-ium ethanesulfonate. ACTA CRYSTALLOGRAPHICA SECTION E CRYSTALLOGRAPHIC COMMUNICATIONS 2022; 78:135-139. [PMID: 35145739 PMCID: PMC8819452 DOI: 10.1107/s205698902101361x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 12/27/2021] [Indexed: 11/10/2022]
Abstract
α-Aminosilanes are distinguished by a long Si—C bond, which was confirmed in the title compound. Additionally, the supramolecular interactions were determined by Hirshfeld surface analysis to investigate the influence of these contacts on the crystal packing. The title molecular salt, C17H30NSi+·C2H5O4S−, belongs to the class of a-aminosilanes and was synthesized by the alkylation of 1-[(benzyldimethylsilyl)methyl]piperidine using diethyl sulfate. This achiral salt crystallizes in the chiral space group P21. One of the Si—C bonds in the cation is unusually long [1.9075 (12) Å], which correlates with the adjacent quaternary N+ atom and was verified by quantum chemical calculations. In the crystal, the components are linked by weak C—H⋯O hydrogen bonds: a Hirshfeld surface analysis was performed to further investigate these intermolecular interactions and their effects on the crystal packing.
Collapse
|
33
|
Abstract
Natural products have significant biological properties that arise from their fascinating molecular architectures. Despite many advances in synthetic method development, the efficient synthesis of highly-functionalized and structurally intricate natural products...
Collapse
|
34
|
Fuwa H. Total Synthesis of (−)-Exiguolide, a Potent Anticancer Marine Macrolide. HETEROCYCLES 2022. [DOI: 10.3987/rev-22-983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
35
|
Marciniec B, Pietraszuk C, Pawluć P, Maciejewski H. Inorganometallics (Transition Metal-Metalloid Complexes) and Catalysis. Chem Rev 2021; 122:3996-4090. [PMID: 34967210 PMCID: PMC8832401 DOI: 10.1021/acs.chemrev.1c00417] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
While the formation
and breaking of transition metal (TM)–carbon
bonds plays a pivotal role in the catalysis of organic compounds,
the reactivity of inorganometallic species, that is, those involving
the transition metal (TM)–metalloid (E) bond, is of key importance
in most conversions of metalloid derivatives catalyzed by TM complexes.
This Review presents the background of inorganometallic catalysis
and its development over the last 15 years. The results of mechanistic
studies presented in the Review are related to the occurrence of TM–E
and TM–H compounds as reactive intermediates in the catalytic
transformations of selected metalloids (E = B, Si, Ge, Sn, As, Sb,
or Te). The Review illustrates the significance of inorganometallics
in catalysis of the following processes: addition of metalloid–hydrogen
and metalloid–metalloid bonds to unsaturated compounds; activation
and functionalization of C–H bonds and C–X bonds with
hydrometalloids and bismetalloids; activation and functionalization
of C–H bonds with vinylmetalloids, metalloid halides, and sulfonates;
and dehydrocoupling of hydrometalloids. This first Review on inorganometallic
catalysis sums up the developments in the catalytic methods for the
synthesis of organometalloid compounds and their applications in advanced
organic synthesis as a part of tandem reactions.
Collapse
Affiliation(s)
- Bogdan Marciniec
- Faculty of Chemistry, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland.,Center for Advanced Technology, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland
| | - Cezary Pietraszuk
- Faculty of Chemistry, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| | - Piotr Pawluć
- Faculty of Chemistry, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland.,Center for Advanced Technology, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland
| | - Hieronim Maciejewski
- Faculty of Chemistry, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| |
Collapse
|
36
|
Ghamari Kargar P, Bagherzade G. A Green Synthesis Strategy of Binuclear Catalyst for the C-C Cross-Coupling Reactions in the Aqueous Medium: Hiyama and Suzuki-Miyaura Reactions as Case Studies. Front Chem 2021; 9:747016. [PMID: 34912778 PMCID: PMC8667276 DOI: 10.3389/fchem.2021.747016] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Accepted: 10/28/2021] [Indexed: 11/28/2022] Open
Abstract
Cellulose, as a green and available phytochemical, was immobilized on the surface of magnetite nanoparticles then doped with imidazole and Co. complex (Fe3O4@CNF ∼ ImSBL ∼ Co.) and used as a water-dispersible, recyclable and efficient nano catalyst for the synthesis of C-C cross-coupling reactions including fluoride-free Hiyama and Suzuki reactions in an aqueous medium as an efficient and vital solvent, due to their high application and importance in various fields of science. Different spectroscopic and microscopic techniques were used for the catalyst characterization such XRD, FESEM, TEM, FT-IR, EDX, DLS, VSM, UV-Vis, and ICP analyses. The presence of imidazole as ionic section tags with hydrophilic character on the Co-complex supported on magnetic nanoparticles provides dispersion of the catalyst particles in water, which leads to both higher catalytic performance and also facile catalyst recovery and reuse six times by successive extraction and final magnetic separation. High catalytic activity was found for the catalyst and high to excellent efficiency was obtained for all Suzuki (80-98% yield; E factor: 1.1-1.9) and Hiyama (87-98% yield; E factor: 0.26-1.1) derivatives in short reaction times under mild reaction conditions in the absence of any hazardous or expensive materials. There is not any noticeable by-product found whether for Suzuki or Hiyama derivatives, which reflects the high selectivity and also the lower the E factor the more favorable is the process in view of green chemistry. The bi-aryls were achieved from the reaction of various aryl iodides/bromides and even chlorides as the highly challenging substrates, which are more available and cheaper, with triethoxyphenylsilane or phenylboronic acid. To prove the performance of the catalyst components (synergistic of SBL ∼ Co. and IL), its different homologs were incorporated individually and studied for a model reaction. Exclusively, this is an introductory statement on the use of Cobalt binuclear symmetric ionic liquid catalysts in Hiyama reactions.
Collapse
|
37
|
Dubey AK, Chowdhury R. Solvent-free synthesis of enantioenriched β-silyl nitroalkanes under organocatalytic conditions. Beilstein J Org Chem 2021; 17:2642-2649. [PMID: 34795801 PMCID: PMC8561140 DOI: 10.3762/bjoc.17.177] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 10/13/2021] [Indexed: 12/22/2022] Open
Abstract
An enantioselective 1,4-conjugate addition of nitromethane to β-silyl α,β-unsaturated carbonyl compounds catalyzed by bifunctional squaramide catalysts has been developed. This methodology offers both enantiomers of β-silyl nitroalkanes in good to excellent yields (up to 92%) and enantioselectivities (up to 97.5% ee) under solvent-free conditions at room temperature. Control experiments reveal that the presence of a β-silyl group in the enones is crucial for high reactivity under the optimized reaction conditions.
Collapse
Affiliation(s)
- Akhil K Dubey
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Raghunath Chowdhury
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India.,Homi Bhabha National Institute, Anushaktinagar, Mumbai-400094, India
| |
Collapse
|
38
|
Copper-catalyzed C(sp)-C(sp2) oxidative cross coupling reaction to access to methyl arylpropiolates at room temperature. GREEN SYNTHESIS AND CATALYSIS 2021. [DOI: 10.1016/j.gresc.2021.09.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
|
39
|
Zheng L, Nie X, Wu Y, Wang P. Construction of Si‐Stereogenic Silanes through C−H Activation Approach. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101084] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Long Zheng
- School of Chemistry and Material Sciences Hangzhou Institute for Advanced Study University of Chinese Academy of Sciences Hangzhou 310024 China
- State key laboratory of organometallic chemistry Center for excellence in molecular synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences CAS 345 Lingling Road Shanghai 200032 P. R. China
| | - Xiao‐Xue Nie
- State key laboratory of organometallic chemistry Center for excellence in molecular synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences CAS 345 Lingling Road Shanghai 200032 P. R. China
| | - Yichen Wu
- State key laboratory of organometallic chemistry Center for excellence in molecular synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences CAS 345 Lingling Road Shanghai 200032 P. R. China
| | - Peng Wang
- School of Chemistry and Material Sciences Hangzhou Institute for Advanced Study University of Chinese Academy of Sciences Hangzhou 310024 China
- State key laboratory of organometallic chemistry Center for excellence in molecular synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences CAS 345 Lingling Road Shanghai 200032 P. R. China
| |
Collapse
|
40
|
Chen X, Wang Z, Zhou J, Liu Y, Jin H, Zhou B. Nickel-catalyzed remote hydrosilylation of unconjugated enones with bulky triphenylsilane. Org Biomol Chem 2021; 19:8021-8024. [PMID: 34490432 DOI: 10.1039/d1ob01477c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein we describe a nickel-catalyzed remote hydrosilylation of unconjugated enones with bulky triphenylsilane. A range of Z-silyl enol ethers are obtained as major isomers due to the process of nickel triggered alkene isomerization. Notably, some specific alkyl silyl enol ethers can be prepared from this protocol, which are not easily accessed by the traditional strategy using a strong base and chlorosilane. This reaction features 100% atom economy, simple reaction conditions, and good yields.
Collapse
Affiliation(s)
- Xue Chen
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China.
| | - Zhen Wang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China.
| | - Jinyong Zhou
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China.
| | - Yunkui Liu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China.
| | - Hongwei Jin
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China.
| | - Bingwei Zhou
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China.
| |
Collapse
|
41
|
Zhang T, Zheng S, Kobayashi T, Maekawa H. Regioselective Silylations of Propargyl and Allyl Pivalates through Ca-Promoted Reductive C(sp 3)-O Bond Cleavage. Org Lett 2021; 23:7129-7133. [PMID: 34473522 DOI: 10.1021/acs.orglett.1c02532] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A practical protocol for the regioselective preparation of 3-phenylpropargylsilanes and 3-phenylallylsilanes in yields of 36-77 and 48-86%, respectively, from readily accessible 3-phenylpropargyl and 1-phenylallyl pivalates was developed through reductive C(sp3)-O bond cleavage. This method represents the first example of the direct application of vastly abundant calcium granules to a reductive coupling reaction. A broad range of propargylsilanes and allylsilanes are simply prepared using easy-to-handle pivalates and chlorotrimethylsilane under mild catalyst-free and additive-free conditions.
Collapse
Affiliation(s)
- Tianyuan Zhang
- Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1 Kamitomioka-cho, Nagaoka, Niigata 940-2188, Japan
| | - Suhua Zheng
- Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1 Kamitomioka-cho, Nagaoka, Niigata 940-2188, Japan
| | - Taro Kobayashi
- Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1 Kamitomioka-cho, Nagaoka, Niigata 940-2188, Japan
| | - Hirofumi Maekawa
- Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1 Kamitomioka-cho, Nagaoka, Niigata 940-2188, Japan
| |
Collapse
|
42
|
Zhang M, Gao S, Tang J, Chen L, Liu A, Sheng S, Zhang AQ. Asymmetric synthesis of chiral organosilicon compounds via transition metal-catalyzed stereoselective C-H activation and silylation. Chem Commun (Camb) 2021; 57:8250-8263. [PMID: 34323898 DOI: 10.1039/d1cc02839a] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This feature article details the progress of transition metal-catalyzed stereoselective sp2 and sp3 C-H activation and silylation in the synthesis of chiral organosilicon compounds, and the asymmetric C-H silylation includes intramolecular cyclizing silylation and intermolecular silylation. The silylating reagents include monohydrosilanes, dihydrosilanes, silacylcobutanes and disilanes. In general, catalytic systems include a transition metal salt as the catalyst and a chiral ligand. No external chiral ligand is required in some cases where the chiral substrates act as the source of chirality. Many kinds of silylated compounds with central, axial, planar, or helical chirality have been constructed via C-H activation by asymmetric rhodium, iridium or palladium catalysis. Some pharmacophores and material building blocks were successfully introduced into the target molecules. Some silylated products proved to be useful in medicinal chemistry, synthetic organic chemistry, and materials science. Besides reaction development, mechanisms for stereoselective C-H activation and silylation are also discussed.
Collapse
Affiliation(s)
- Ming Zhang
- College of Chemistry and Chemical Engineering and Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Normal University (Yaohu Campus), 99 Ziyangdadao Avenue, Nanchang, Jiangxi 330022, China.
| | | | | | | | | | | | | |
Collapse
|
43
|
Cheng C, Zhang Y. Palladium-Catalyzed anti-Carbosilylation of Alkynes to Access Isoquinolinone-Containing Exocyclic Vinylsilanes. Org Lett 2021; 23:5772-5776. [PMID: 34259535 DOI: 10.1021/acs.orglett.1c01931] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A Pd-catalyzed trans-selective carbosilylation reaction of alkynes has been developed. The trans-vinylpalladium species, generated through intramolecular syn-carbopalladation of alkynes and subsequent cis-trans isomerization, were captured by hexamethyldisilane to form multisubstituted vinylsilanes. This reaction provides a useful strategy for the stereoselective synthesis of isoquinolinone-containing exocyclic tetrasubstituted vinylsilanes.
Collapse
Affiliation(s)
- Cang Cheng
- School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University 1239 Siping Road, Shanghai 200092, China
| | - Yanghui Zhang
- School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University 1239 Siping Road, Shanghai 200092, China
| |
Collapse
|
44
|
Yu F, Shen W, Sun Y, Liao Y, Jin S, Lu X, He R, Zhong L, Zhong G, Zhang J. Ruthenium-catalyzed C-H amination of aroylsilanes. Org Biomol Chem 2021; 19:6313-6321. [PMID: 34212972 DOI: 10.1039/d1ob00935d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Acylsilane represents a valuable synthon in synthetic chemistry. We report on ruthenium(ii)-catalyzed ortho-C-H amination of aroylsilanes to provide facile access to synthetically useful imidobenzoylsilanes and tosyl-amidobenzoylsilanes. The protocols, with broad substrate scope and excellent functional group tolerance, are enabled with the weak chelation-assistance of acylsilane via C-H cyclometallation.
Collapse
Affiliation(s)
- Feifei Yu
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China.
| | - Wenzhou Shen
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China.
| | - Yaling Sun
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China.
| | - Yilei Liao
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China.
| | - Shuqi Jin
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China.
| | - Xiunan Lu
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China.
| | - Rui He
- Department of Stomatology, The Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Hangzhou, 310015, China.
| | - Liangjun Zhong
- Department of Stomatology, The Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Hangzhou, 310015, China.
| | - Guofu Zhong
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China.
| | - Jian Zhang
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China. and Department of Stomatology, The Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Hangzhou, 310015, China.
| |
Collapse
|
45
|
Patnaik S, Kanbur U, Ellern A, Sadow AD. Hydrosilane σ-Adduct Intermediates in an Adaptive Zinc-Catalyzed Cross-dehydrocoupling of Si-H and O-H Bonds. Chemistry 2021; 27:10428-10436. [PMID: 33876468 PMCID: PMC8362191 DOI: 10.1002/chem.202101146] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Indexed: 11/09/2022]
Abstract
Three-coordinate Ph BOXMe 2 ZnR (Ph BOXMe 2 =phenyl-(4,4-dimethyl-oxazolinato; R=Me: 2 a, Et: 2 b) catalyzes the dehydrocoupling of primary or secondary silanes and alcohols to give silyl ethers and hydrogen, with high turnover numbers (TON; up to 107 ) under solvent-free conditions. Primary and secondary silanes react with small, medium, and large alcohols to give various degrees of substitution, from mono- to tri-alkoxylation, whereas tri-substituted silanes do not react with MeOH under these conditions. The effect of coordinative unsaturation on the behavior of the Zn catalyst is revealed through a dramatic variation of both rate law and experimental rate constants, which depend on the concentrations of both the alcohol and hydrosilane reactants. That is, the catalyst adapts its mechanism to access the most facile and efficient conversion. In particular, either alcohol or hydrosilane binds to the open coordination site on the Ph BOXMe 2 ZnOR catalyst to form a Ph BOXMe 2 ZnOR(HOR) complex under one set of conditions or an unprecedented σ-adduct Ph BOXMe 2 ZnOR(H-SiR'3 ) under other conditions. Saturation kinetics provide evidence for the latter species, in support of the hypothesis that σ-bond metathesis reactions involving four-centered electrocyclic 2σ-2σ transition states are preceded by σ-adducts.
Collapse
Affiliation(s)
- Smita Patnaik
- Department of ChemistryIowa State UniversityAmesIA 50011USA
- US Department of Energy Ames LaboratoryIowa State UniversityAmesIA 50011USA
| | - Uddhav Kanbur
- Department of ChemistryIowa State UniversityAmesIA 50011USA
- US Department of Energy Ames LaboratoryIowa State UniversityAmesIA 50011USA
| | - Arkady Ellern
- Department of ChemistryIowa State UniversityAmesIA 50011USA
| | - Aaron D. Sadow
- Department of ChemistryIowa State UniversityAmesIA 50011USA
- US Department of Energy Ames LaboratoryIowa State UniversityAmesIA 50011USA
| |
Collapse
|
46
|
Wu XX, Ye H, Jiang G, Hu L. Domino Heck/Hiyama cross-coupling: trapping of the σ-alkylpalladium intermediate with arylsilanes. Org Biomol Chem 2021; 19:4254-4257. [PMID: 33890598 DOI: 10.1039/d1ob00595b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
A palladium-catalyzed domino Heck cyclization/Hiyama coupling reaction by the trapping of the σ-alkylpalladium intermediate with arylsilanes is described. A wide range of aryl-tethered alkenes and arylsilanes are all compatible with the reaction conditions. This approach shows good yields and excellent functional group tolerance, presenting a more practical and sustainable alternative to the conventional domino Heck cyclization/Suzuki coupling reaction.
Collapse
Affiliation(s)
- Xin-Xing Wu
- College of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, People's Republic of China.
| | | | | | | |
Collapse
|
47
|
Lv H, Laishram RD, Chen J, Khan R, Zhu Y, Wu S, Zhang J, Liu X, Fan B. Photocatalyzed cross-dehydrogenative coupling of silanes with alcohols and water. Chem Commun (Camb) 2021; 57:3660-3663. [PMID: 33724277 DOI: 10.1039/d1cc00129a] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
An efficient method for the dehydrogenative coupling of silanes with alcohols under photocatalysis was developed. The reaction proceeded in the presence of Ru(bpy)3Cl2 (0.5 mol%) under visible light irradiation in acetonitrile at room temperature. The developed methodology was also applicable for the synthesis of silanols using water as a coupling partner.
Collapse
Affiliation(s)
- Haiping Lv
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, Yuehua Street, Kunming, 650500, China.
| | | | | | | | | | | | | | | | | |
Collapse
|
48
|
Iqbal N, Lee DS, Jung H, Cho EJ. Synergistic Effects of Boron and Oxygen Interaction Enabling Nickel-Catalyzed Exogenous Base-Free Stereoselective Arylvinylation of Alkynes through Vinyl Transposition. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00536] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Naeem Iqbal
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro,
Dongjak-gu, Seoul 06974, Republic of Korea
| | - Da Seul Lee
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro,
Dongjak-gu, Seoul 06974, Republic of Korea
| | - Hoimin Jung
- Department of Chemistry, Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Eun Jin Cho
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro,
Dongjak-gu, Seoul 06974, Republic of Korea
| |
Collapse
|
49
|
Liu XT, Zhang GL, Zeng JH, Hu J, Zhan ZP. Pd(acac) 2/Xantphos: A highly efficient and readily available catalyst for regioselective hydrosilylation of allenes. PHOSPHORUS SULFUR 2021. [DOI: 10.1080/10426507.2020.1845683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Xiao-Tao Liu
- Wanxiang Technology Co., Ltd., Huaian, Jiangsu, P.R. China
| | - Guo-Liang Zhang
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian, P.R. China
| | - Jia-Hao Zeng
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian, P.R. China
| | - Jing Hu
- Modern Educational Technology and Practice Training Center, Xiamen University, Xiamen, Fujian, P.R. China
| | - Zhuang-Ping Zhan
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian, P.R. China
| |
Collapse
|
50
|
Tabassum S, Zahoor AF, Ahmad S, Noreen R, Khan SG, Ahmad H. Cross-coupling reactions towards the synthesis of natural products. Mol Divers 2021; 26:647-689. [PMID: 33609222 DOI: 10.1007/s11030-021-10195-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 01/30/2021] [Indexed: 01/12/2023]
Abstract
Cross-coupling reactions are powerful synthetic tools for the formation of remarkable building blocks of many naturally occurring molecules, polymers and biologically active compounds. These reactions have brought potent transformations in chemical and pharmaceutical disciplines. In this review, we have focused on the use of cross-coupling reactions such as Suzuki, Negishi, Heck, Sonogashira and Stille in the total synthesis of some natural products of recent years (2016-2020). A short introduction of mentioned cross-coupling reactions along with highlighted aspects of natural products has been stated in separate sections. Additionally, few examples of natural products via incorporation of more than one type of cross-coupling reaction have also been added to demonstrate the importance of these reactions in organic synthesis.
Collapse
Affiliation(s)
- Shaheera Tabassum
- Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Ameer Fawad Zahoor
- Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan.
| | - Sajjad Ahmad
- Department of Chemistry, University of Engineering and Technology, Lahore, Faisalabad Campus, Faisalabad, 38000, Pakistan
| | - Razia Noreen
- Department of Biochemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Samreen Gul Khan
- Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Hamad Ahmad
- Department of Chemistry, University of Management and Technology, Lahore, Pakistan
| |
Collapse
|