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Ruthenium-Catalyzed Intramolecular Cyclization of 3-Butyne-1,2-diols into Furans

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posted on 2008-07-28, 00:00 authored by Yukito Yada, Yoshihiro Miyake, Yoshiaki Nishibayashi
Ruthenium-catalyzed intramolecular cyclization of 3-butyne-1,2-diols affords the corresponding substituted furans in good to high yields. This catalytic reaction is proposed to proceed via ruthenium−allenylidene complexes as key intermediates.

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