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Paper | Special issue | Vol 52, No. 2, 2000, pp.681-691
Published online, 1st January, 1970
DOI: 10.3987/COM-99-S68
Synthesis of Dihydropyrroles and Tetrahydropyridines by the Cyclization of O-Methylsulfonyloximes Having an Active Methine Group

Masayuki Yoshida, Katsuya Uchiyama, and Koichi Narasaka*

*Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan


3,4-Dihydro-2H-pyrroles and 2,3,4,5-tetrahydropyridines are prepared by treatment of (E)-O-methylsulfonyloximes having an active methine group at γ- or δ-position with 1,8-diazabicyclo[5.4.0]undec-7-ene via SN2-type substitution on sp2 nitrogen atom of the oxime derivatives.