Literature DB >> 21268646

CuBr-Catalyzed Coupling of N-Tosylhydrazones and Terminal Alkynes: Synthesis of Benzofurans and Indoles.

Lei Zhou1, Yi Shi, Qing Xiao, Yizhou Liu, Fei Ye, Yan Zhang, Jianbo Wang.   

Abstract

A new method for the synthesis of benzofurans or indoles via ligand-free CuBr-catalyzed coupling/cyclization of terminal alkynes with N-tosylhydrazones derived from o-hydroxy- or o-aminobenzaldehydes has been developed. A wide range of functional groups were found that are able to tolerate the reaction conditions.

Entities:  

Year:  2011        PMID： 21268646     DOI： 10.1021/ol103009n

Source DB:  PubMed          Journal:  Org Lett        ISSN： 1523-7052            Impact factor:   6.005


  5 in total

1.  Metalloradical approach to 2H-chromenes.

Authors:  Nanda D Paul; Sutanuva Mandal; Matthias Otte; Xin Cui; X Peter Zhang; Bas de Bruin
Journal:  J Am Chem Soc       Date:  2014-01-08       Impact factor: 15.419

Review 2.  Recent Advances in Catalytic Alkyne Transformation via Copper Carbene Intermediates.

Authors:  Kuiyong Dong; Mengting Liu; Xinfang Xu
Journal:  Molecules       Date:  2022-05-11       Impact factor: 4.927

3.  Cu-Catalyzed Transannulation Reaction of Pyridotriazoles with Terminal Alkynes under Aerobic Conditions: Efficient Synthesis of Indolizines.

Authors:  V Helan; A V Gulevich; V Gevorgyan
Journal:  Chem Sci       Date:  2015-03       Impact factor: 9.825

Review 4.  Last Decade of Unconventional Methodologies for the Synthesis of Substituted Benzofurans.

Authors:  Lucia Chiummiento; Rosarita D'Orsi; Maria Funicello; Paolo Lupattelli
Journal:  Molecules       Date:  2020-05-16       Impact factor: 4.411

5.  Multi-Component One-Pot Reaction of Aromatic Carbonyl Compounds, Tosylhydrazide, and Arylboronic Acids.

Authors:  Ningning Gu; Yu Wei; Ping Liu; Yan Liu; Bin Dai
Journal:  Molecules       Date:  2017-12-07       Impact factor: 4.411
  5 in total

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