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Communication | Regular issue | Vol 36, No. 12, 1993, pp.2657-2662
Published online, 1st January, 1970
DOI: 10.3987/COM-93-6488
A New Method for Introducing Acetylene Groups at the α-Position of the Pyrroliding Ring

Tatsuo Nagasaka,* Shiro Nishida, Koichi Adachi, Toshio Kawahara, Shu Sugihara, and Fumiko Hamaguchi

*Tokyo College of Pharmacy, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan

Abstract

A new method has been established for introducing acetylene groups at the α-position of pyrrolidine ring, in which 2-ethoxy-N-ethoxycarbonylpyrrolidine reacts with tin(IV) acetylides in the presence of tin(II) triflate.