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Communication | Regular issue | Vol 31, No. 3, 1990, pp.415-417
Published online, 1st January, 1970
DOI: 10.3987/COM-89-5295
Cationic Polar Cycloaddition with Anodically Prepared α-Tri- and α-Difluoromethylated N,O-Acetals: Preparation of Fluoromethylated Tetra- and Dihydroquinoline Derivatives

Toshio Fuchigami,* Shinji Ichikawa, Zaghloul E. Kandeel, Akinori Konno, and Tsutomu Nonaka

*Department of Electronic Chemistry, Graduate School at Nagatsuta, Tokyo Institute of Technology, Nagatsuta, Midori-ku, Yokohama 226-8501, Japan

Abstract

Anodically prepared α-tri- and α-difluoromethylated N,O-acetals readily underwent [4++2] type polar cycloadditions with styrenes and phenylacetylene in the presence of a Lewis acid to provide the corresponding fluoromethylated tetra- and dihydroquinoline derivatives.