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Synthesis of multisubstituted furans, pyrroles, and thiophenes via ynolates
Authors:Shindo Mitsuru  Yoshimura Yutaka  Hayashi Maiko  Soejima Hiroe  Yoshikawa Takashi  Matsumoto Kenji  Shishido Kozo
Affiliation:Institute for Materials Chemistry and Engineering, Kyushu University, Kasuga, Japan. shindo@cm.kyushu-u.ac.jp
Abstract:An efficient synthetic method for the preparation of multisubstituted furans, thiophenes, and pyrroles using ynolates was developed. This novel formal [4 + 1] annulation by C2-C3 and C3-C4 bond formations includes cycloaddition, cyclization, decarboxylation, and dehydration as key steps.
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