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Communication | Special issue | Vol 47, No. 1, 1998, pp.85-86
Published online, 1st January, 1970
DOI: 10.3987/COM-97-S(N)26
Synthesis of Pyrroline via Cyclization of 4-Isocyano-1-siloxy-1-alkene Induced by an Iminium Salt

Masahiro Murakami,* Naoki Hasegawa, Toshio Nagatomi, and Yoshihiko Ito

*Departmene of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Yoshida, Sakyou-ku, Kyoto 606-8501, Japan

Abstract

4-Isocyano-1-siloxy-1-alkenes, prepared by the fluoride-catalyzed 1,4-addition of α-isocyanocarboxylates to α,β-unsaturated ketones, underwent cyclization on treatment with an iminium salt to afford pyrroline derivatives.