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

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

Various 4-aryl-3-bromocoumarins were smoothly obtained in moderate yields in one pot by treating 3-aryl-2-propynoic acids with diaryliodonium triflates and K2CO3 in the presence of CuCl, followed by the reaction with tetrabutylammonium bromide (TBAB) and Na2S2O8. The obtained 3-bromo-4-phenylcoumari...

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Bibliographic Details
Main Authors: Teppei Sasaki, Katsuhiko Moriyama, Hideo Togo
Format: Article
Language:English
Published: Beilstein-Institut 2018-02-01
Series:Beilstein Journal of Organic Chemistry
Subjects:
3-aryl-2-propynoic acid
bromo-cyclization
coumarin
diaryliodonium triflate
O-phenylation
Online Access:https://doi.org/10.3762/bjoc.14.22

Internet

https://doi.org/10.3762/bjoc.14.22

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