Literature DB >> 25084051

Copper-catalyzed direct trifluoromethylation of propiolates: construction of trifluoromethylated coumarins.

Yuewen Li1, Yuan Lu, Guanyinsheng Qiu, Qiuping Ding.   

Abstract

A novel copper-catalyzed direct trifluoromethylation of internal alkynes was developed, obtaining a series of trifluoromethylated coumarins in good yields. The cyclization was proposed to proceed via a radical mechanism under copper-catalyzed conditions with good functional group tolerance.

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Year:  2014        PMID： 25084051     DOI： 10.1021/ol501939m

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


  3 in total

Review 1.  Alkynoates as Versatile and Powerful Chemical Tools for the Rapid Assembly of Diverse Heterocycles under Transition-Metal Catalysis: Recent Developments and Challenges.

Authors:  Imtiaz Khan; Aliya Ibrar; Sumera Zaib
Journal:  Top Curr Chem (Cham)       Date:  2021-01-05

2.  One-pot preparation of 4-aryl-3-bromocoumarins from 4-aryl-2-propynoic acids with diaryliodonium salts, TBAB, and Na2S2O8.

Authors:  Teppei Sasaki; Katsuhiko Moriyama; Hideo Togo
Journal:  Beilstein J Org Chem       Date:  2018-02-05       Impact factor: 2.883

3.  Redox-ligand sustains controlled generation of CF3 radicals by well-defined copper complex.

Authors:  Jérémy Jacquet; Sébastien Blanchard; Etienne Derat; Marine Desage-El Murr; Louis Fensterbank
Journal:  Chem Sci       Date:  2015-12-03       Impact factor: 9.825
  3 in total

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