1
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Hsu CK, Liu YH, Liu ST. Preparation of Benzo[ a]fluorenes via Pd-Catalyzed Annulation of 5-(2-Bromophenyl)pent-3-en-1-ynes. J Org Chem 2024. [PMID: 39121450 DOI: 10.1021/acs.joc.4c01286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/11/2024]
Abstract
A palladium-promoted cascade cyclization of 5-(2-bromophenyl)pent-3-en-1-ynes is developed for the synthesis of benzo[a]fluorene derivatives. The reaction proceeds with oxidative addition of C-Br, insertion, C-H activation, and reductive elimination in sequential steps.
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Affiliation(s)
- Cheng-Kai Hsu
- Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
| | - Yi-Hung Liu
- Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
| | - Shiuh-Tzung Liu
- Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
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2
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Zhu L, Zhu PW, Hu LY, Lin SY, Wu L, Zhu J. Electrochemically Enabled Hydroxyphosphorylation of 1,3-Enynes to Access Phosphinyl-Substituted Propargyl Alcohols. J Org Chem 2024; 89:10796-10804. [PMID: 39030172 DOI: 10.1021/acs.joc.4c01023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2024]
Abstract
Catalytic difunctionalization with the direct activation of (O)P-H bonds has been recently established as a potentially robust platform to generate valuable organophosphorus compounds. In terms of 1,3-enynes, despite of the various catalytic methods developed for hydrophosphorylation, the radical-mediated hetero-functionalization of two different atoms has been less explored. In this study, we disclosed an electrochemically induced hydroxyphosphorylation of 1,3-enynes for the construction of phosphinyl-substituted propargyl alcohols. The system involves the direct activation of both arylphosphine oxides and oxygen in ambient air with no external metal or additive needed. The use of electrochemistry ensures the regioselective, atom-economic and eco-friendly for the difunctionalization process. This strategy highlights the advantages of mild reaction conditions, readily available starting materials and broad substrate scope, showing its practical synthetic value in organic synthesis.
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Affiliation(s)
- Li Zhu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Peng-Wei Zhu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, P. R. China
- SINOPEC Jinling Company, NanJing 210033, P. R. China
| | - Li-Yan Hu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Shao-Yan Lin
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Lei Wu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Jie Zhu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, P. R. China
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3
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Zhao L, Zhang Y, Wang H, Wang J, He C, Zhao L, Duan C. Isolation of a copper photocatalyst on a metal-organic cage for the sulfonylation of aryl halides resulting from visible-light-mediated C(sp 2)-S cross-coupling. Chem Commun (Camb) 2024; 60:6805-6808. [PMID: 38869490 DOI: 10.1039/d4cc02061h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2024]
Abstract
A Ce-based metal-organic tetrahedron was assembled for preserving the uncoordinated nature of 2,2'-bipyridyl groups to form a Cu-based photocatalyst, which protected CuI centers from intermolecular deactivation and showed high photocatalytic activity for the visible-light-mediated C(sp²)-S cross-coupling.
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Affiliation(s)
- Lehua Zhao
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, Dalian University of Technology, Dalian 116024, P. R. China.
| | - Yu Zhang
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, Dalian University of Technology, Dalian 116024, P. R. China.
| | - Huali Wang
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, Dalian University of Technology, Dalian 116024, P. R. China.
| | - Jing Wang
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, Dalian University of Technology, Dalian 116024, P. R. China.
| | - Cheng He
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, Dalian University of Technology, Dalian 116024, P. R. China.
| | - Liang Zhao
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, Dalian University of Technology, Dalian 116024, P. R. China.
| | - Chunying Duan
- State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, P. R. China
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4
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Wang Y, Liu S, Huang Y. Photoredox/copper-catalyzed gem-difluoroalkylation-cyanation of 1,3-enynes. Org Biomol Chem 2024; 22:4895-4900. [PMID: 38826121 DOI: 10.1039/d4ob00602j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2024]
Abstract
A photoredox/copper-catalyzed 1,4-difunctionalization of 1,3-enynes with readily available difluoroalkylating reagents and TMSCN was developed. This reaction proceeded at mild conditions, affording the corresponding difluoroalkylated allenes in good yields with high functional-group tolerance and excellent regioselectivity.
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Affiliation(s)
- Yachen Wang
- College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China.
| | - Shuai Liu
- National Engineering Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, 330022, China.
| | - Yangen Huang
- College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China.
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5
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Zheng JY, Wang F, Zhang Y, Zheng Z, Wu JH, Ren X, Su Z, Chen W, Wang T. Novel Stereo-Induction Pattern in Pudovik Addition/Phospha-Brook Rearrangement Towards Chiral Trisubstituted Allenes. Angew Chem Int Ed Engl 2024; 63:e202403707. [PMID: 38520267 DOI: 10.1002/anie.202403707] [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: 02/22/2024] [Revised: 03/21/2024] [Accepted: 03/22/2024] [Indexed: 03/25/2024]
Abstract
Despite the significance of chiral allene skeletons in catalysis, organic synthesis and medicinal chemistry et al., there is a scarcity of reports on axially chiral allenyl phosphorus compounds. Here, we disclosed an efficient and straightforward cascade reaction between ethynyl ketones and phosphine oxides, resulting in a broad array of trisubstituted allenes incorporating a phosphorus moiety in high yields with excellent stereoselectivities facilitated by peptide-mimic phosphonium salt (PPS) catalysis, Additionally, comprehensive series of mechanistic experiments have been conducted to elucidate that this cascade reaction proceeds via an asymmetric Pudovik addition reaction followed by a subsequent phospha-Brook rearrangement that occurs concomitantly with kinetic resolution, representing a stereospecific rearrangement and protonation process facilitating central-to-axial chirality transfer in a cascade manner. We anticipate that our research will pave the way for a promising exploration of novel stereo-induction pattern in the Pudovik addition/phospha-Brook rearrangement cascade reaction.
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Affiliation(s)
- Jia-Yan Zheng
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Fan Wang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Yan Zhang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Zheng Zheng
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Med-X Center for Materials, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
- Department of Prosthodontics, West China Hospital of Stomatology and Jinjiang Out-patient Section, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Jia-Hong Wu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Xiaoyu Ren
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Zhishan Su
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Wenchuan Chen
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Med-X Center for Materials, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
- Department of Prosthodontics, West China Hospital of Stomatology and Jinjiang Out-patient Section, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Tianli Wang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
- Beijing National Laboratory for Molecular Sciences, Beijing, 100190, P. R. China
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6
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Pu Y, Ding S, Zhao H, Xue Q, Zhang H, Xie X, Shang Y, Wang J. Three-Component Synthesis of Multiple Functionalized Allenes via Copper/Photoredox Dual Catalyzed 1,4-Alkylcyanation of 1,3-Enynes. Org Lett 2024; 26:1834-1839. [PMID: 38388381 DOI: 10.1021/acs.orglett.3c04360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
Efficient access to multiple functionalized allenes via a three component 1,4-alkylcyanation of enynes with cyclic alcohol derivatives in the presence of trimethylsilyl cyanide (TMSCN) under copper/photoredox dual catalysis has been developed. Both easily transformable aldehyde and cyano groups were introduced to tetra-substituted allenes through light-induced C-C bond cleavage of cyclic butanol and pentanol derivatives. The reactions proceeded smoothly under mild conditions with broad functional groups tolerance.
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Affiliation(s)
- Yue Pu
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P.R. China
| | - Shumin Ding
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P.R. China
| | - Haixia Zhao
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P.R. China
| | - Qiaoli Xue
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P.R. China
| | - Heng Zhang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P.R. China
| | - Xiaotian Xie
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P.R. China
| | - Yongjia Shang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P.R. China
| | - Jian Wang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P.R. China
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7
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Rosales-Amezcua SC, Ballinas-Indili R, López-Reyes ME, Guevara-Vela JM, Rocha-Rinza T, Toscano RA, Álvarez-Toledano C. Synthesis of Functionalized Tetrasubstituted Allenes by the Addition of Bis(trimethylsilyl)ketene Acetals to Ynones Catalyzed by Gold(I). J Org Chem 2024; 89:3092-3101. [PMID: 38359145 DOI: 10.1021/acs.joc.3c02550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
We have developed a straightforward and rapid methodology for the synthesis of tetrasubstituted allenes bearing carboxylic acids in the 1,3-position through the gold(I)-catalyzed nucleophilic addition of bis(trimethylsilyl)ketene acetals to ynones. The reaction was evaluated with several substrates, and 21 allenes were obtained in moderate to good yields. Using DFT calculations, we studied the mechanism of the reaction, which suggested a nucleophilic 1,4-addition pathway. The potential of allenes to act as a source of highly functionalized lactones was also explored.
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Affiliation(s)
- Saulo C Rosales-Amezcua
- Instituto de Química, Universidad Nacional Autónoma de México (UNAM), Circuito Exterior s/n, Ciudad Universitaria, Cd. de México 04510, Mexico
| | - Ricardo Ballinas-Indili
- Instituto de Química, Universidad Nacional Autónoma de México (UNAM), Circuito Exterior s/n, Ciudad Universitaria, Cd. de México 04510, Mexico
| | - Morelia E López-Reyes
- Departamento de Química, Universidad de Guadalajara, Blvd. Marcelino García Barragán 1421, Guadalajara 44430, Mexico
| | - José Manuel Guevara-Vela
- Departamento de Química Física Aplicada, Universidad Autónoma de Madrid, Francisco Tomás y Valiente, 7, Madrid 28049, Spain
| | - Tomás Rocha-Rinza
- Instituto de Química, Universidad Nacional Autónoma de México (UNAM), Circuito Exterior s/n, Ciudad Universitaria, Cd. de México 04510, Mexico
| | - Rúben A Toscano
- Instituto de Química, Universidad Nacional Autónoma de México (UNAM), Circuito Exterior s/n, Ciudad Universitaria, Cd. de México 04510, Mexico
| | - Cecilio Álvarez-Toledano
- Instituto de Química, Universidad Nacional Autónoma de México (UNAM), Circuito Exterior s/n, Ciudad Universitaria, Cd. de México 04510, Mexico
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8
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Sun Y, Zhang N, Ren J, Huang H, Luan X, Zuo Z. Highly Selective 1,4-Diacylation/Cycloisomerization of 1,3-Enynes: De Novo Synthetic Strategy to Polysubstituted Furans. Org Lett 2024; 26:35-40. [PMID: 38117816 DOI: 10.1021/acs.orglett.3c03450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2023]
Abstract
The development of a de novo synthetic strategy for rapid assembly of biologically relevant multisubstituted furans is an appealing but challenging task. Herein, we disclose NHC and organophotocatalysis cocatalyzed three-component radical 1,4-diacylation/cycloisomerization cascade process of readily available 1,3-enynes, which provides an efficient and straightforward entry to a wide range of polysubstituted furans with good yields and excellent regio- and chemoselectivities. The reaction features mild conditions, broad substrate scopes, and good functional group compatibilities.
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Affiliation(s)
- Yu Sun
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, China
| | - Na Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, China
| | - Jingyun Ren
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, China
| | - Haohao Huang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, China
| | - Xinjun Luan
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, China
| | - Zhijun Zuo
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, China
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9
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Wang Q, Chen Y, Peng K, Li Y, Cheng L, Deng GJ. Three-Component Cross-Electrophile 1,4-Alkylarylation of 1,3-Enynes by Merging Nickel and Photoredox Catalysis. Org Lett 2023. [PMID: 38038400 DOI: 10.1021/acs.orglett.3c03677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
A three-component 1,4-alkylarylation of 1,3-enynes with organic halides through the combination of nickel and photoredox catalysis has been established, providing a novel and modular approach for the assembly of tetrasubstituted allenes. This reductive cascade cross-electrophile reaction obviates the need for air-sensitive organometallic reagents and stoichiometric metallic reductants. A diverse range of functional groups are very compatible under mild reaction conditions and give satisfactory yields. Moreover, a reasonable mechanism is presented according to a series of control experiments.
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Affiliation(s)
- Quanyuan Wang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Ya Chen
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Keyi Peng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Yue Li
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Lilei Cheng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Guo-Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
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10
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Hou H, Pan Y, Sun Y, Han Y, Yan C, Shi Y, Zhu S. Visible-Light Photoredox Catalyzed Regioselective 1,4-Hydroalkylation of 1,3-Enyne. Chemistry 2023; 29:e202301633. [PMID: 37365999 DOI: 10.1002/chem.202301633] [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: 05/23/2023] [Revised: 06/19/2023] [Accepted: 06/27/2023] [Indexed: 06/28/2023]
Abstract
Described herein is a visible-light photoredox-catalyzed regioselective 1,4-hydroalkylation of 1,3-enynes. Various of di- and tri-substituent allenes were really accessible under the present reaction conditions. The visible-light photoredox activation of the carbon nucleophile to generate its radical species, allowing the addition with un-activated enynes. The synthetic utility for the present protocol was demonstrated by a large-scale reaction, as well as the derivatization of the allene product.
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Affiliation(s)
- Hong Hou
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
| | - Yingjie Pan
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
| | - Yuejie Sun
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
| | - Ying Han
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
| | - Chaoguo Yan
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
| | - Yaocheng Shi
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
| | - Shaoqun Zhu
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
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11
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Zhang D, Fan J, Shi Y, Huang Y, Fu C, Wu X, Ma S. Copper-catalyzed propargylic C-H functionalization for allene syntheses. Chem Sci 2023; 14:9191-9196. [PMID: 37655026 PMCID: PMC10466309 DOI: 10.1039/d3sc01501g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 08/08/2023] [Indexed: 09/02/2023] Open
Abstract
Allenenitriles bearing different synthetically versatile functional groups have been prepared smoothly from 5-alkynyl fluorosulfonamides in decent yields with an excellent chemo- and regio-selectivity under redox neutral conditions. The resulting allenenitriles can be readily converted to useful functionalized heterocycles. Based on mechanistic study, it is confirmed that this is the first example of radical-based non-activated propargylic C-H functionalization for allene syntheses.
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Affiliation(s)
- Dongjie Zhang
- Laboratory of Molecular Recognition and Synthesis, Department of Chemistry Zhejiang University Hangzhou Zhejiang 310027 P. R. China
| | - Junjie Fan
- Laboratory of Molecular Recognition and Synthesis, Department of Chemistry Zhejiang University Hangzhou Zhejiang 310027 P. R. China
| | - Yaqi Shi
- Laboratory of Molecular Recognition and Synthesis, Department of Chemistry Zhejiang University Hangzhou Zhejiang 310027 P. R. China
| | - Yankai Huang
- Laboratory of Molecular Recognition and Synthesis, Department of Chemistry Zhejiang University Hangzhou Zhejiang 310027 P. R. China
| | - Chunling Fu
- Laboratory of Molecular Recognition and Synthesis, Department of Chemistry Zhejiang University Hangzhou Zhejiang 310027 P. R. China
| | - Xiaoyan Wu
- Laboratory of Molecular Recognition and Synthesis, Department of Chemistry Zhejiang University Hangzhou Zhejiang 310027 P. R. China
| | - Shengming Ma
- Laboratory of Molecular Recognition and Synthesis, Department of Chemistry Zhejiang University Hangzhou Zhejiang 310027 P. R. China
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12
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Song H, Zhang X, Chen G, He X, Lian Z. Copper-Catalyzed 1,4-Trifluoromethylthio-Arylsulfonylation of 1,3-Enynes via the Insertion of Sulfur Dioxide. Org Lett 2023; 25:5916-5921. [PMID: 37498155 DOI: 10.1021/acs.orglett.3c02293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2023]
Abstract
A copper-catalyzed trifluoromethylthio-arylsulfonylation between 1,3-enynes, AgSCF3, aryldiazonium tetrafluoroborates, and SO2 (from SOgen) is presented, which could introduce sulfone, SCF3, and allene moieties into one molecule simultaneously. This strategy features mild reaction conditions, good substrate compatibility, and excellent regioselectivity. The products obtained have the potential for further conversion into other valuable compounds. Initial investigations into the reaction mechanism suggest that it may proceed via a radical pathway. Notably, SOgen was proven as a uniquely effective SO2 surrogate in this transformation.
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Affiliation(s)
- Hongzhuo Song
- Department of Dermatology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Xuemei Zhang
- Department of Dermatology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Gang Chen
- Department of Dermatology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Xiaochun He
- Department of Dermatology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Zhong Lian
- Department of Dermatology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and West China School of Pharmacy, Sichuan University, Chengdu 610041, China
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13
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Li C, Zhou Z, Ma S. A Pd-catalyzed highly selective three-component protocol for trisubstituted allenes. Chem Sci 2023; 14:7709-7715. [PMID: 37476716 PMCID: PMC10355113 DOI: 10.1039/d3sc01849k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 06/20/2023] [Indexed: 07/22/2023] Open
Abstract
Herein we report the first example of a Pd-catalyzed highly selective three-component reaction of alkynyl-1,4-diol dicarbonates, organoboronic acids, and malonate anions for the efficient synthesis of trisubstituted 2,3-allenyl malonates not readily available by the known protocols. The reaction demonstrates an excellent regio- and chemo-selectivity for both the oxidative addition referring to the two C-O bonds and the subsequent coupling with the nucleophile with a remarkable functional group compatibility. A series of control experiments confirm a unique mechanism involving β-O elimination forming alka-1,2,3-triene and the subsequent insertion of its terminal C[double bond, length as m-dash]C bond into the Ar-Pd bond.
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Affiliation(s)
- Can Li
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Zhengnan Zhou
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Shengming Ma
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 P. R. China
- Research Center for Molecular Recognition and Synthesis, Department of Chemistry, Fudan University 220 Handan Lu Shanghai 200433 P. R. China
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14
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Deliaval M, Jayarajan R, Eriksson L, Szabó KJ. Three-Component Approach to Densely Functionalized Trifluoromethyl Allenols by Asymmetric Organocatalysis. J Am Chem Soc 2023; 145:10001-10006. [PMID: 37126044 PMCID: PMC10176480 DOI: 10.1021/jacs.3c02852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
We have developed a new three-component catalytic coupling reaction of alkynyl boronates, diazomethanes, and aliphatic/aromatic ketones in the presence of BINOL derivatives. The reaction proceeds with a remarkably high enantio- and diastereoselectivity (up to three contiguous stereocenters) affording tertiary CF3-allenols in a single operational step. The reaction proceeds under mild, neutral, metal-free conditions, which leads to a high level of functional group tolerance.
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Affiliation(s)
- Marie Deliaval
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Ramasamy Jayarajan
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Lars Eriksson
- Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Kálmán J Szabó
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
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15
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Zhao YR, Zhou Y, Hu M. Synthesis of trifluoromethylated allenes via visible light-promoted bis(trifluoromethylation) of 1,3-enynes. J Fluor Chem 2023. [DOI: 10.1016/j.jfluchem.2023.110105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
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16
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Ma X, Zhang Q, Zhang W. Remote Radical 1,3-, 1,4-, 1,5-, 1,6- and 1,7-Difunctionalization Reactions. Molecules 2023; 28:molecules28073027. [PMID: 37049790 PMCID: PMC10095731 DOI: 10.3390/molecules28073027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 03/25/2023] [Accepted: 03/25/2023] [Indexed: 03/30/2023] Open
Abstract
Radical transformations are powerful in organic synthesis for the construction of molecular scaffolds and introduction of functional groups. In radical difunctionalization reactions, the radicals in the first functionalized intermediates can be relocated through resonance, hydrogen atom or group transfer, and ring opening. The resulting radical intermediates can undertake the following paths for the second functionalization: (1) couple with other radical groups, (2) oxidize to cations and then react with nucleophiles, (3) reduce to anions and then react with electrophiles, (4) couple with metal-complexes. The rearrangements of radicals provide the opportunity for the synthesis of 1,3-, 1,4-, 1,5-, 1,6-, and 1,7-difunctionalization products. Multiple ways to initiate the radical reaction coupling with intermediate radical rearrangements make the radical reactions good for difunctionalization at the remote positions. These reactions offer the advantages of synthetic efficiency, operation simplicity, and product diversity.
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Affiliation(s)
- Xiaoming Ma
- School of Pharmacy, Changzhou University, 1 Gehu Road, Changzhou 213164, China;
| | - Qiang Zhang
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, 99 Xuefu Road, Suzhou 215009, China;
| | - Wei Zhang
- Department of Chemistry and Center for Green Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd, Boston, MA 02125, USA
- Correspondence: ; Tel.: +1-617-287-6147
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17
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Hu C, Mena J, Alabugin IV. Design principles of the use of alkynes in radical cascades. Nat Rev Chem 2023:10.1038/s41570-023-00479-w. [PMID: 37117812 DOI: 10.1038/s41570-023-00479-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/17/2023] [Indexed: 03/30/2023]
Abstract
One of the simplest organic functional groups, the alkyne, offers a broad canvas for the design of cascade transformations in which up to three new bonds can be added to each of the two sterically unencumbered, energy-rich carbon atoms. However, kinetic protection provided by strong π-orbital overlap makes the design of new alkyne transformations a stereoelectronic puzzle, especially on multifunctional substrates. This Review describes the electronic properties contributing to the unique utility of alkynes in radical cascades. We describe how to control the selectivity of alkyne activation by various methods, from dynamic covalent chemistry with kinetic self-sorting to disappearing directing groups. Additionally, we demonstrate how the selection of reactive intermediates directly influences the propagation and termination of the cascade. Diverging from a common departure point, a carefully planned reaction route can allow access to a variety of products.
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18
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Liu J, Tang J, Chen J, Ge T, Zhao X, Xu J, Gong P, Hou Y. Stereoselective Synthesis of Substituted ( Z)- N-Allyl Sulfonamides via a Palladium-Catalyzed Three-Component Tandem Reaction. J Org Chem 2023; 88:4162-4171. [PMID: 36971317 DOI: 10.1021/acs.joc.2c02661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
This paper reports the efficient synthesis of substituted (Z)-N-allyl sulfonamides via a palladium-catalyzed three-component tandem reaction of N-buta-2,3-dienyl sulfonamides with iodides and sulfonyl hydrazide or sulfinic acid sodium salt as nucleophiles. Pd(PPh3)4 (2.5 mol %), K2CO3, and THF were used as the optimal catalyst, base, and solvent, respectively. The substituted (Z)-N-allyl sulfonamides were obtained in a 30-83% overall yield. Mechanistic investigations revealed that the formation of the single (Z)-isomer was controlled by the formation of a six-membered palladacycle intermediate.
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19
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Li M, Sun GQ, Liu YY, Li SX, Liu HC, Qiu YF, Chen DP, Wang XC, Liang YM, Quan ZJ. Nickel-Catalyzed Three-Component Tandem Radical Cyclization 1,5-Difunctionalization of 1,3-Enynes and Alkyl Bromide. J Org Chem 2023; 88:1403-1410. [PMID: 36656018 DOI: 10.1021/acs.joc.2c02271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A nickel-catalyzed three-component tandem radical cyclization reaction of aryl bromides with 1,3-enynes and aryl boric acids to construct γ-lactam-substituted allene derivatives has been described. This protocol provides lactam alkyl radicals through the free radical cyclization process, which can be effectively used to participate in the subsequent multicomponent coupling reaction so that 1,3-enynes could directly convert into corresponding poly-substituted allene compounds. In addition, this efficient method enjoys a broad substrate scope and provides a series of 1,5-difunctionalized allenes in a one-pot reaction.
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Affiliation(s)
- Ming Li
- College of Chemistry and Chemical Engineering, Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Guo-Qing Sun
- College of Chemistry and Chemical Engineering, Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Yu-Yu Liu
- College of Chemistry and Chemical Engineering, Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Shun-Xi Li
- College of Chemistry and Chemical Engineering, Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Hai-Chao Liu
- College of Chemistry and Chemical Engineering, Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Yi-Feng Qiu
- College of Chemistry and Chemical Engineering, Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Dong-Pin Chen
- College of Chemistry and Chemical Engineering, Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Xi-Cun Wang
- College of Chemistry and Chemical Engineering, Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Zheng-Jun Quan
- College of Chemistry and Chemical Engineering, Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials, Northwest Normal University, Lanzhou, Gansu 730070, China
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20
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Li S, Yang W, Shi J, Dan T, Han Y, Cao ZC, Yang M. Synthesis of Trifluoromethyl-Substituted Allenols via Catalytic Trifluoromethylbenzoxylation of 1,3-Enynes. ACS Catal 2023. [DOI: 10.1021/acscatal.2c04978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Songrong Li
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE & School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, People’s Republic of China
| | - Wenwen Yang
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE & School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, People’s Republic of China
| | - Junjie Shi
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE & School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, People’s Republic of China
| | - Tingting Dan
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE & School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, People’s Republic of China
| | - Yujie Han
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE & School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, People’s Republic of China
| | - Zhi-Chao Cao
- Anhui Agricultural University, Hefei, Anhui 230036, People’s Republic of China
| | - Mingyu Yang
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE & School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, People’s Republic of China
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21
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Liu XF, Zhang K, Wang LL, Wang H, Huang J, Zhang XT, Lu XB, Zhang WZ. Electroreductive Ring-Opening Carboxylation of Cycloketone Oxime Esters with Carbon Dioxide. J Org Chem 2022; 88:5212-5219. [PMID: 36273332 DOI: 10.1021/acs.joc.2c01816] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Electroreductive ring-opening carboxylation of cycloketone oxime esters with atmospheric carbon dioxide is reported. This reaction proceeded under simple constant current conditions in an undivided cell using glassy carbon as the cathode and magnesium as the sacrificial anode, providing substituted γ- and δ-cyanocarboxylic acids in moderate to good yields. Electrochemically generated cyanoalkyl radicals and cyanoalkyl anion are proposed as the key intermediates.
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Affiliation(s)
- Xiao-Fei Liu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, P.R. China
| | - Ke Zhang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, P.R. China
| | - Lin-Lin Wang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, P.R. China
| | - He Wang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, P.R. China
| | - Jian Huang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, P.R. China
| | - Xun-Ting Zhang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, P.R. China
| | - Xiao-Bing Lu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, P.R. China
| | - Wen-Zhen Zhang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, P.R. China
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22
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Lin J, Huang Z, Ma J, Xu BH, Zhou YG, Yu Z. Tunable Construction of Multisubstituted 1,3-Dienes and Allenes via a 1,4-Palladium Migration/Carbene Insertion Cascade. J Org Chem 2022; 87:12019-12035. [PMID: 36053185 DOI: 10.1021/acs.joc.2c01019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Efficient palladium-catalyzed vinylic C-H alkenylation and allenylation of gem-disubstituted ethylenes with N-tosylhydrazones of aryl alkyl and diaryl ketones were achieved to access trisubstituted 1,3-dienes and tetrasubstituted allenes, respectively. An aryl to vinyl 1,4-palladium migration/carbene insertion/β-hydride elimination sequence proceeded to switch the chemo- and regioselectivities to give structurally diverse products. Use of 2-FC6H4OH additive enables enhancement of the reaction efficiency through accelerating the key 1,4-palladium migration process.
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Affiliation(s)
- Jie Lin
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China.,University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Zilong Huang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China.,University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Juan Ma
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China.,University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Bao-Hua Xu
- Innovation Academy for Green Manufacture, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Yong-Gui Zhou
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
| | - Zhengkun Yu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, P. R. China.,Innovation Academy for Green Manufacture, Chinese Academy of Sciences, Beijing 100190, P. R. China
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23
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Zhang FH, Guo X, Zeng X, Wang Z. Asymmetric 1,4-functionalization of 1,3-enynes via dual photoredox and chromium catalysis. Nat Commun 2022; 13:5036. [PMID: 36028488 PMCID: PMC9418150 DOI: 10.1038/s41467-022-32614-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 08/08/2022] [Indexed: 11/09/2022] Open
Abstract
The merger of photoredox and transition-metal catalysis has evolved as a robust platform in organic synthesis over the past decade. The stereoselective 1,4-functionalization of 1,3-enynes, a prevalent synthon in synthetic chemistry, could afford valuable chiral allene derivatives. However, tremendous efforts have been focused on the ionic reaction pathway. The radical-involved asymmetric 1,4-functionalization of 1,3-enynes remains a prominent challenge. Herein, we describe the asymmetric three-component 1,4-dialkylation of 1,3-enynes via dual photoredox and chromium catalysis to provide chiral allenols. This method features readily available starting materials, broad substrate scope, good functional group compatibility, high regioselectivity, and simultaneous control of axial and central chiralities. Mechanistic studies suggest that this reaction proceeds through a radical-involved redox-neutral pathway.
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Affiliation(s)
- Feng-Hua Zhang
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, Department of Chemistry, School of Science, Westlake University, Hangzhou, 310024, Zhejiang Province, China.,Institute of Natural Sciences, Westlake Institute for Advanced Study, Hangzhou, 310024, Zhejiang Province, China
| | - Xiaochong Guo
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, Department of Chemistry, School of Science, Westlake University, Hangzhou, 310024, Zhejiang Province, China.,Institute of Natural Sciences, Westlake Institute for Advanced Study, Hangzhou, 310024, Zhejiang Province, China
| | - Xianrong Zeng
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, Department of Chemistry, School of Science, Westlake University, Hangzhou, 310024, Zhejiang Province, China.,Institute of Natural Sciences, Westlake Institute for Advanced Study, Hangzhou, 310024, Zhejiang Province, China
| | - Zhaobin Wang
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, Department of Chemistry, School of Science, Westlake University, Hangzhou, 310024, Zhejiang Province, China. .,Institute of Natural Sciences, Westlake Institute for Advanced Study, Hangzhou, 310024, Zhejiang Province, China.
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24
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Liu W, Liu C, Wang M, Kong W. Modular Synthesis of Multifunctionalized CF 3-Allenes through Selective Activation of Saturated Hydrocarbons. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Wenfeng Liu
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, P. R. China
| | - Chuhan Liu
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, P. R. China
| | - Minyan Wang
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Wangqing Kong
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, P. R. China
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25
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Wu H, Qu B, Nguyen T, Lorenz JC, Buono F, Haddad N. Recent Advances in Non-Precious Metal Catalysis. Org Process Res Dev 2022. [DOI: 10.1021/acs.oprd.2c00124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hao Wu
- Chemical Development US, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Bo Qu
- Chemical Development US, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Thach Nguyen
- Chemical Development US, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Jon C. Lorenz
- Chemical Development US, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Frederic Buono
- Chemical Development US, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Nizar Haddad
- Chemical Development US, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
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26
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Zhang G, Feng XJ, Li MY, Ji XM, Lin GQ, Feng CG. Synthesis of tetrasubstituted allenes via a 1,4-palladium migration/carbene insertion/β-H elimination sequence. Org Biomol Chem 2022; 20:5383-5386. [PMID: 35748786 DOI: 10.1039/d2ob00751g] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A palladium-catalyzed synthesis of tetrasubstituted allenes from aryl bromides and aryl diazoacetates is developed. This transformation proceeded via an aryl to alkenyl 1,4-palladium migration/carbene insertion/β-H elimination sequence under mild reaction conditions.
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Affiliation(s)
- Ge Zhang
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China. .,Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai, 200032, China
| | - Xiao-Jiao Feng
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - Meng-Yao Li
- Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai, 200032, China.,State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiao-Ming Ji
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - Guo-Qiang Lin
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China. .,Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai, 200032, China
| | - Chen-Guo Feng
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China. .,Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai, 200032, China
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27
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Liu H, Li K, Huang S, Yan H. An Isolable Vinylidene ortho-Quinone Methide: Synthesis, Structure and Reactivity. Angew Chem Int Ed Engl 2022; 61:e202117063. [PMID: 35171537 DOI: 10.1002/anie.202117063] [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: 12/14/2021] [Indexed: 12/29/2022]
Abstract
Commonly, an elusive intermediate is generated from a precursor and then trapped and consumed in a reaction. Vinylidene ortho-quinone methides (VQMs) have been demonstrated as transient axially chiral intermediates in asymmetric catalysis due to their orthogonal π-bonds forming an allene motif. The current understanding of VQMs is primarily based on time-resolved absorption, trapping experiments and computational studies. Herein, we report the first isolation and comprehensive characterization of a VQM, including crystallographic analysis. The disturbed aromaticity of the VQM led to its high reactivity as an electrophile or a 4π-component capable of asymmetric dearomatization of an electron-deficient phenyl group. Notably, the VQM could be isolated in enantiomerically enriched form, and the subsequent transformation was stereospecific, indicating that the generation of the VQM was involved in the enantiodetermining step. This study paves the way for the direct application of VQMs as starting materials.
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Affiliation(s)
- Hong Liu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P.R. China
| | - Kai Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P.R. China
| | - Shengli Huang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P.R. China
| | - Hailong Yan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P.R. China
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28
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A copper-catalyzed three-component reaction of alkenes, cycloketone oximes and DABCO·(SO2)2: Direct C(sp2)-H cyanoalkylsulfonylation. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.11.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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29
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Sun Q, Zhang X, Duan X, Qin L, Yuan X, Wu M, Liu J, Zhu S, Qiu J, Guo K. Photoinduced Merging with Copper‐ or
Nickel‐Catalyzed
1,
4‐Cyanoalkylarylation
of 1,
3‐Enynes
to Access Multiple Functionalizatized Allenes in Batch and Continuous Flow. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Qi Sun
- Biotechnology and Pharmaceutical Engineering Nanjing Tech University Nanjing 211816 P. R. China
| | - Xin‐Peng Zhang
- Biotechnology and Pharmaceutical Engineering Nanjing Tech University Nanjing 211816 P. R. China
| | - Xiu Duan
- Biotechnology and Pharmaceutical Engineering Nanjing Tech University Nanjing 211816 P. R. China
| | - Long‐Zhou Qin
- Biotechnology and Pharmaceutical Engineering Nanjing Tech University Nanjing 211816 P. R. China
| | - Xin Yuan
- Biotechnology and Pharmaceutical Engineering Nanjing Tech University Nanjing 211816 P. R. China
| | - Meng‐Yu Wu
- Biotechnology and Pharmaceutical Engineering Nanjing Tech University Nanjing 211816 P. R. China
| | - Jie Liu
- Biotechnology and Pharmaceutical Engineering Nanjing Tech University Nanjing 211816 P. R. China
| | - Shan‐Shan Zhu
- Biotechnology and Pharmaceutical Engineering Nanjing Tech University Nanjing 211816 P. R. China
| | - Jiang‐Kai Qiu
- Biotechnology and Pharmaceutical Engineering Nanjing Tech University Nanjing 211816 P. R. China
- State Key Laboratory of Materials‐Oriented Chemical Engineering Nanjing Tech University Nanjing 211800 P. R. China
| | - Kai Guo
- Biotechnology and Pharmaceutical Engineering Nanjing Tech University Nanjing 211816 P. R. China
- State Key Laboratory of Materials‐Oriented Chemical Engineering Nanjing Tech University Nanjing 211800 P. R. China
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30
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Liu H, Li K, Huang S, Yan H. An Isolable Vinylidene
ortho‐
Quinone Methide: Synthesis, Structure and Reactivity. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202117063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hong Liu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research Chemical Biology Research Center School of Pharmaceutical Sciences Chongqing University Chongqing 401331 P.R. China
| | - Kai Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research Chemical Biology Research Center School of Pharmaceutical Sciences Chongqing University Chongqing 401331 P.R. China
| | - Shengli Huang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research Chemical Biology Research Center School of Pharmaceutical Sciences Chongqing University Chongqing 401331 P.R. China
| | - Hailong Yan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research Chemical Biology Research Center School of Pharmaceutical Sciences Chongqing University Chongqing 401331 P.R. China
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31
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Xie XY, Xu YF, Li Y, Wang XD, Zhu J, Wu L. Radical modulated regioselective difunctionalization of vinyl enynes: tunable access to naphthalen-1(2 H)-ones and allenic alcohols. Chem Commun (Camb) 2022; 58:3031-3034. [PMID: 35156673 DOI: 10.1039/d1cc06994b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel and efficient radical-modulated difunctionalization of vinyl enynes has been disclosed using TEMPO as a radical regulator. Facile access to structurally diverse 3-bromo-naphthalen-1(2H)-ones and 4-bromo-allenic alcohols was realized via 1,2-addition/1,2-migration or 1,4-addition, respectively. This protocol represents the first example of radical-modulated metal-free difunctionalization of 1,3-enynes with high regioselectivity.
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Affiliation(s)
- Xiao-Yu Xie
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, P. R. China.
| | - Yun-Fang Xu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, P. R. China.
| | - Yang Li
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, P. R. China.
| | - Xiao-Dong Wang
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, P. R. China.
| | - Jie Zhu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, P. R. China.
| | - Lei Wu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, P. R. China. .,College of Chemistry and Chemical Engineering, Xinjiang Agricultural University, Urumqi 830052, P. R. China
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32
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Yuan H, Wang J. Cu( i)- and Pd( ii)-catalyzed decarboxylative cross-couplings of alkynyl carboxylic acids with N-tosylhydrazones: access to trisubstituted allenes and conjugated enynes. Org Chem Front 2022. [DOI: 10.1039/d2qo01100j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This paper reports the copper- and palladium-catalyzed decarboxylative cross-coupling reactions of alkynyl carboxylic acids and N-tosylhydrazones, affording trisubstituted allenes and conjugated enynes, respectively.
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Affiliation(s)
- Hairui Yuan
- 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
| | - 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
- The State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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33
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Lv Y, Han W, Pu W, Xie J, Wang A, Zhang M, Wang J, Lai J. Copper-Catalyzed Regioselective 1,4-Sulfonylcyanation of 1,3-Enynes with Sulfonyl Chlorides and TMSCN. Org Chem Front 2022. [DOI: 10.1039/d2qo00486k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel and practical copper-catalyzed reaction for the 1,4-sulfonylcyanation of 1,3-enynes under mild conditions is described. This protocol provides efficient and straightforward access to a variety of 5-sulfonylpenta-2,3-dienenitrile derivatives with...
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34
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Lei W, Liu H, Li Y, Fang Y. Nickel-catalysed SET-reduction-based access to functionalized allenes via 1,4-carbohydrogenation of 1,3-enynes with alkyl bromides. Org Chem Front 2022. [DOI: 10.1039/d2qo00672c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Allene synthesis: Using reductive radical–polar crossover as the strategy, functionalized allenes could be easily accessed via the reactions of 1,3-enynes with alkyl bromides enabled by nickel catalysis.
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Affiliation(s)
- Wan Lei
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials and Ministry-of-Education Key Laboratory for Synthesis and Application of Organic Functional Molecules, Hubei University, No. 368 YouyiDadao, Wuhan 430062, China
| | - Hong Liu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials and Ministry-of-Education Key Laboratory for Synthesis and Application of Organic Functional Molecules, Hubei University, No. 368 YouyiDadao, Wuhan 430062, China
| | - Yan Li
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials and Ministry-of-Education Key Laboratory for Synthesis and Application of Organic Functional Molecules, Hubei University, No. 368 YouyiDadao, Wuhan 430062, China
| | - Yewen Fang
- School of Materials and Chemical Engineering, Ningbo University of Technology, No. 201 Fenghua Road, Ningbo 315211, China
- Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, No. 345 Lingling Road, Shanghai 200032, China
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35
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Wang M, Wang Q, Ma M, Zhao B. Copper-Catalysed Synthesis of Trifluoromethyl Allenes via Fluoro-carboalkynylation of Alkenes. Org Chem Front 2022. [DOI: 10.1039/d1qo01823j] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Allenes and trifluoromethyl motifs are considered as important building blocks in materials and pharmaceuticals. A copper-catalysed synthesis of trifluoromethyl allenes utilizing readily available feedstocks under mild and environmentlly friendly conditions...
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36
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Lu FD, Shu ZC, He GF, Bai JC, Lu LQ, Xiao WJ. Photoinduced C–O bond cleavage for copper-catalyzed allenyl radical cyanation. Org Chem Front 2022. [DOI: 10.1039/d2qo00938b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of allenyl nitriles was realized through the combination of photoinduced C–O bond cleavage and copper catalysis. Both 1,3-disubstituted and trisubstituted allenyl nitriles were accessed with good yields and high regioselectivity.
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Affiliation(s)
- Fu-Dong Lu
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
| | - Zhen-Cao Shu
- Wuhan Youji Industries Co., Ltd, No.1 2nd Chemical Rd., Wuhan, Hubei, 430082, China
| | - Gui-Feng He
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
| | - Jun-Chuan Bai
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
| | - Liang-Qiu Lu
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, China
| | - Wen-Jing Xiao
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
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37
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Li Y, Bao H. Radical transformations for allene synthesis. Chem Sci 2022; 13:8491-8506. [PMID: 35974759 PMCID: PMC9337727 DOI: 10.1039/d2sc02573f] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 06/28/2022] [Indexed: 12/20/2022] Open
Abstract
Allenes are valuable organic molecules that feature unique physical and chemical properties. They are not only often found in natural products, but also act as versatile building blocks for the access of complex molecular targets, such as natural products, pharmaceuticals, and functional materials. Therefore, many remarkable and elegant methodologies have been established for the synthesis of allenes. Recently, more and more methods for radical synthesis of allenes have been developed, clearly emphasizing the associated great synthetic values. In this perspective, we will discuss recent important advances in the synthesis of allenes via radical intermediates by categorizing them into different types of substrates as well as distinct catalytic systems. The mechanistic studies and synthetic challenges will be highlighted. Recent important advances in the synthesis of allenes via radical strategies are highlighted.![]()
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Affiliation(s)
- Yajun Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. of China
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, P. R. of China
| | - Hongli Bao
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. of China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. of China
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38
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Abstract
The radical relay coupling reaction recently emerged as a powerful synthetic strategy for producing tetrasubstituted allenes. However, bond-forming processes involving the allenyl radical intermediate are mostly limited to those promoted by transition metals. In this report, we describe that a ketyl radical generated from single-electron oxidation of the Breslow intermediate is an excellent coupling partner of allenyl radicals. An organocatalytic 1,4-alkylacylation of 1,3-enynes occurred smoothly in the presence of an aldehyde, a radical precursor, and an N-heterocyclic carbene catalyst. This transformation showed remarkable tolerance to both aromatic and aliphatic aldehydes, enyne substitution, and diversified radical precursors.
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Affiliation(s)
- Yuxing Cai
- State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Jiean Chen
- Pingshan Translational Medicine Center, Shenzhen Bay Laboratory, Shenzhen 518118, China
| | - Yong Huang
- Department of Chemistry, The Hong Kong University of Science and Technology, Kowloon 999077, Hong Kong SAR, China
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39
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Xu T, Wu S, Zhang QN, Wu Y, Hu M, Li JH. Dual Photoredox/Nickel-Catalyzed 1,4-Sulfonylarylation of 1,3-Enynes with Sulfinate Salts and Aryl Halides: Entry into Tetrasubstituted Allenes. Org Lett 2021; 23:8455-8459. [PMID: 34652925 DOI: 10.1021/acs.orglett.1c03179] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A radical-mediated three-component 1,4-sulfonylarylation of 1,3-enynes with aryl iodides and sulfinate salts using cooperative photoredox/nickel catalysis is described. This protocol enables the synthesis of tetrasubstituted sulfonyl-containing allenes under redox-neutral conditions and provides a versatile 1,3-enyne 1,4-difunctionalization platform for the synthesis of a diverse range of tetrasubstituted allenes with high chemo- and regioselectivities, excellent functional group tolerance, and a broad substrate scope.
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Affiliation(s)
- Ting Xu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Shuang Wu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Quan-Na Zhang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - You Wu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Ming Hu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jin-Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China.,State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 475004, China
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40
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Chen L, Lin C, Zhang S, Zhang X, Zhang J, Xing L, Guo Y, Feng J, Gao J, Du D. 1,4-Alkylcarbonylation of 1,3-Enynes to Access Tetra-Substituted Allenyl Ketones via an NHC-Catalyzed Radical Relay. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03861] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Lei Chen
- Department of Organic Chemistry, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Chen Lin
- Department of Organic Chemistry, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Simiao Zhang
- Department of Organic Chemistry, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Xiaojin Zhang
- Department of Organic Chemistry, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Jianming Zhang
- Department of Organic Chemistry, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Lianjie Xing
- Department of Organic Chemistry, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Yage Guo
- Department of Organic Chemistry, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Jie Feng
- Department of Organic Chemistry, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Jian Gao
- Department of Organic Chemistry, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Ding Du
- Department of Organic Chemistry, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China
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41
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Lei W, Liu Y, Fang Y, Li Y, Du C, Fang J. Modular access to 1,2-allenyl ketones based on a photoredox-catalysed radical-polar crossover process. Org Biomol Chem 2021; 19:8502-8506. [PMID: 34549768 DOI: 10.1039/d1ob01654g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, a new protocol dealing with the preparation of 1,2-allenyl ketones has been successfully developed via the reactions of enynes with radicals enabled by dual photoredox/copper catalysis. Based on the results of a deuteration experiment and the competition reaction between cyclopropanation and allenation, the mechanism based on a photoredox-neutral-catalysed radical-polar crossover process has been proposed. Synthetic applications of allenes have also been demonstrated.
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Affiliation(s)
- Wan Lei
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials and Ministry-of-Education Key Laboratory for Synthesis and Application of Organic Functional Molecules, Hubei University, No. 368 YouyiDadao, Wuhan 430062, China.
| | - Yongjun Liu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials and Ministry-of-Education Key Laboratory for Synthesis and Application of Organic Functional Molecules, Hubei University, No. 368 YouyiDadao, Wuhan 430062, China.
| | - Yewen Fang
- School of Materials and Chemical Engineering, Ningbo University of Technology, No. 201 Fenghua Road, Ningbo 315211, China. .,Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, No.345 Lingling Road, Shanghai 200032, China
| | - Yan Li
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials and Ministry-of-Education Key Laboratory for Synthesis and Application of Organic Functional Molecules, Hubei University, No. 368 YouyiDadao, Wuhan 430062, China.
| | - Chan Du
- School of Materials and Chemical Engineering, Ningbo University of Technology, No. 201 Fenghua Road, Ningbo 315211, China.
| | - Jianghua Fang
- School of Materials and Chemical Engineering, Ningbo University of Technology, No. 201 Fenghua Road, Ningbo 315211, China.
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42
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He FS, Bao P, Yu F, Zeng LH, Deng WP, Wu J. Copper-Catalyzed Regioselective 1,4-Selenosulfonylation of 1,3-Enynes to Access Cyanoalkylsulfonylated Allenes. Org Lett 2021; 23:7472-7476. [PMID: 34519510 DOI: 10.1021/acs.orglett.1c02665] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
By employing CuOAc as the catalyst, we realize a four-component reaction of 1,3-enynes, diselenides, DABCO·(SO2)2, and cycloketone oxime esters, providing facile access to diverse cyanoalkylsulfonylated allenyl selenides in moderate to good yields. This reaction features high functional group tolerance and a broad substrate scope, enabling the regioselective, sequential formation of C-SO2 and C-Se bonds under mild reaction conditions. Moreover, the utility of this methodology is further illustrated through the late-stage functionalization of drug-based molecules.
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Affiliation(s)
- Fu-Sheng He
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, China
| | - Ping Bao
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology, Shanghai 200237, China
| | - Feiyan Yu
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, China
| | - Ling-Hui Zeng
- Department of Pharmacology, Zhejiang University City College, 51 Huzhou Street, Hangzhou 310015, China
| | - Wei-Ping Deng
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology, Shanghai 200237, China
| | - Jie Wu
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China.,School of Chemistry and Chemical Engineering, Henan Normal University, 46 East Jianshe Road, Xinxiang 453007, China
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43
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Wang S, Jiang B. Copper-Catalyzed Regioselective 1,4-Selenosulfonylation of 1,3-Enynes to Access Cyanoalkylsulfonylated Allenes. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202100087] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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