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Communication | Regular issue | Vol 22, No. 3, 1984, pp.489-492
Published online, 1st January, 1970
DOI: 10.3987/R-1984-03-0489
■ Organic Synthesis Using 1-Methoxy-1,2,3-butatrienylborates. II. A Facile Synthesis of 2,5-Dialkyl-3-methylfurans from 1,4-Dimethoxy-2-butyne, B-Alkylcatecholboranes and Aldehydes

Junji Koshino, Takahiro Sugawara, and Akira Suzuki*

*Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0828, Japan

Abstract

2,5-Dialkyl-3-methylfurans are obtained in excellent yields by the reaction of acetic acid with 1-methoxy-1,2,3-butatrienylborates prepared from 1-methoxy-1,2,3-butatrienyllithium and B-alkylcatecholboranes, followed by treatment with aldehydes.