|
1
|
Bhoi SR, Debnath C, Gandhi S. Pd/Brønsted acid catalysed intramolecular N-allylation of indoles and pyrroles with alkynes for the synthesis of N-fused heterocycles. Chem Commun (Camb) 2024; 60:428-431. [PMID: 38086631 DOI: 10.1039/d3cc05023h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
We, herein, report a Pd(0) and Brønsted acid-catalyzed redox-neutral intramolecular N-allylation of indoles and pyrroles with alkynes for the synthesis of biologically important imidazolidinone-fused N-heterocycles. The allylation is completely atom-economical and is applicable to a wide range of substrates. The methodology eliminates the use of a leaving group or an oxidizing agent, often employed for the allylation of nucleophiles. To the best of our knowledge, N-allylation of indoles and pyrroles with alkynes has not been reported to date.
Collapse
Affiliation(s)
- Saswat Ranjan Bhoi
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Berhampur 760010, India.
| | - Chhanda Debnath
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Berhampur 760010, India.
| | - Shikha Gandhi
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Berhampur 760010, India.
| |
Collapse
|
|
2
|
Synthesis, characterization, in vitro antibacterial, and anticancer studies of Ag(I)-N-heterocyclic carbene (NHC) complexes. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02498-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
|
3
|
Cera G, Maestri G. Palladium/Brønsted Acid Catalysis for Hydrofunctionalizations of Alkynes: from Tsuji‐Trost Allylations to Stereoselective Methodologies. ChemCatChem 2022. [DOI: 10.1002/cctc.202200295] [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)
- Gianpiero Cera
- Universita degli Studi di Parma Dipartimento delle Scienze Chimiche, della Vita e della Sostenibilità Ambientale Parco Area delle Scienze, 17/A 43124 Parma ITALY
| | - Giovanni Maestri
- University of Parma: Universita degli Studi di Parma Dipartimento delle Scienze Chimiche, della Vita e della Sostenibilità Ambientale Parco Area delle Scienze, 17/A 43124 Parma ITALY
| |
Collapse
|
|
4
|
Wei W, Zhao X. Organoselenium-Catalyzed Cross-Dehydrogenative Coupling of Alkenes and Azlactones. Org Lett 2022; 24:1780-1785. [DOI: 10.1021/acs.orglett.2c00117] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Wei Wei
- Institute of Organic Chemistry and MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510006, P. R. China
| | - Xiaodan Zhao
- Institute of Organic Chemistry and MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510006, P. R. China
| |
Collapse
|
|
5
|
Wei X, Bai C, Zhao L, Zhang P, Li Z, Wang Y, Su Q. Lewis Acid Enables Ketone Phosphorylation: Synthesis of Alkenyl Phosphonates. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100083] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Xiao‐Hong Wei
- Key Laboratory for Utility of Environment‐Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University No. 1, Northwest Xincun Lanzhou Gansu 730030 China
| | - Chun‐Yuan Bai
- Key Laboratory for Utility of Environment‐Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University No. 1, Northwest Xincun Lanzhou Gansu 730030 China
| | - Lian‐Biao Zhao
- Key Laboratory for Utility of Environment‐Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University No. 1, Northwest Xincun Lanzhou Gansu 730030 China
| | - Ping Zhang
- Key Laboratory for Utility of Environment‐Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University No. 1, Northwest Xincun Lanzhou Gansu 730030 China
| | - Zhen‐Hua Li
- Key Laboratory for Utility of Environment‐Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University No. 1, Northwest Xincun Lanzhou Gansu 730030 China
| | - Yan‐Bin Wang
- Key Laboratory for Utility of Environment‐Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University No. 1, Northwest Xincun Lanzhou Gansu 730030 China
| | - Qiong Su
- Key Laboratory for Utility of Environment‐Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University No. 1, Northwest Xincun Lanzhou Gansu 730030 China
| |
Collapse
|
|
6
|
Lu CJ, Chen YT, Wang H, Li YJ. Palladium-catalyzed dearomative allylation of indoles with cyclopropyl acetylenes: access to indolenine derivatives. Org Biomol Chem 2021; 19:635-644. [PMID: 33367392 DOI: 10.1039/d0ob02103b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A palladium-catalyzed redox-neutral allylic alkylation of indoles with cyclopropyl acetylenes has been disclosed. Various 1,3-diene indolenine framework bearing a quaternary stereocenter at the C3 position were synthesized straightforwardly in good to excellent yields with high regio- and stereoselectivities. The reaction could be further expanded to the dearomatization of naphthols to synthesize functionalized cyclohexadienones with 1,3-diene motifs. The reaction exhibited high atom economy and good functional group tolerance.
Collapse
Affiliation(s)
- Chuan-Jun Lu
- College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China. and College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Yu-Ting Chen
- College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China.
| | - Hong Wang
- College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China.
| | - Yu-Jin Li
- College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China.
| |
Collapse
|
|
7
|
Abstract
This review summaries recent synthetic developments towards spirocyclic oxindoles and applications as valuable medicinal and synthetic targets.
Collapse
Affiliation(s)
- Alexander J. Boddy
- Department of Chemistry
- Imperial College London
- Molecular Sciences Research Hub
- London W12 0BZ
- UK
| | - James A. Bull
- Department of Chemistry
- Imperial College London
- Molecular Sciences Research Hub
- London W12 0BZ
- UK
| |
Collapse
|
|
8
|
Xie L, Yang H, Ma M, Xing D. Rhodium-Catalyzed Branched and Enantioselective Direct α-Allylic Alkylation of Simple Ketones with Alkynes. Org Lett 2020; 22:2007-2011. [PMID: 32065530 DOI: 10.1021/acs.orglett.0c00375] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Herein, we report the first direct branched-selective α-allylic alkylation of simple ketones with alkynes under rhodium and secondary amine cooperative catalysis. Through a rhodium-hydride-catalyzed allylic substitution pathway, a series of valuable γ,δ-unsaturated ketones are obtained with excellent regioselectivity in an atom-economic and byproduct-free manner. With a chiral BIPHEP ligand, high enantioselectivity has been achieved for this transformation.
Collapse
Affiliation(s)
- Liyu Xie
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Haijian Yang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Mingliang Ma
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Dong Xing
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| |
Collapse
|
|
9
|
Yang H, Xing D. Palladium-catalyzed diastereo- and enantioselective allylic alkylation of oxazolones with 1,3-dienes under base-free conditions. Chem Commun (Camb) 2020; 56:3721-3724. [DOI: 10.1039/d0cc00265h] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Herein, we report a highly diastereo- and enantioselective allylic alkylation of oxazolones with 1,3-dienes by palladium-hydride catalyst under base-free conditions.
Collapse
Affiliation(s)
- Haijian Yang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- China
| | - Dong Xing
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- China
| |
Collapse
|