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Multicomponent Reactions of Furan-2,3-diones: Synthesis and Characterizations of Furo[3,2-c]pyran-4-ones

✍ Scribed by İrfan Koca; İsmail Yıldırım; Ertan Şahin

Publisher
John Wiley and Sons
Year
2010
Tongue
German
Weight
236 KB
Volume
93
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

Furo[3,2‐c]pyran‐4‐ones, which possess a natural‐product skeleton, are synthesized via a simple, one‐pot, three‐component reaction of furan‐2,3‐diones with dialkyl acetylenedicarboxylates and Ph~3~P.

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## Abstract An efficient synthesis of 3‐bromoacetyl‐4‐hydroxy‐6‐methyl‐2__H__‐pyran‐2‐one by bromination of dehydroacetic acid in glacial acetic acid is described. Novel 4‐hydroxy‐6‐methyl‐3‐(2‐substituted‐thiazol‐4‐yl)‐2__H__‐pyran‐2‐ones have been prepared from the reaction of 3‐bromoacetyl‐4‐hyd