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Rhodium-Catalyzed Intramolecular Transannulation Reaction of Alkynyl Thiadiazole Enabled 5,n‑Fused Thiophenes

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posted on 11.01.2017, 00:00 by Ji Eun Kim, Jinsub Lee, Hyunsik Yun, Yonghyeon Baek, Phil Ho Lee
A method for the synthesis of a wide range of fused thiophenes, including those fused with lactams, lactones, or cyclic ethers, was developed from a rhodium-catalyzed intramolecular transannulation reaction of alkynyl thiadiazoles. This transannulation reaction provides an efficient platform for the construction of a variety of 5,n-fused thiophenes from readily available starting materials together with the release of molecular nitrogen.

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