REGIOSELECTIVE SULFENYLATION OF OXIME DIANIONS. A NOVEL AND USEFUL METHOD FOR THE REGIOSELECTIVE RING CLEAVAGE
作者:Kunio Hiroi、Masahiko Otsuka、Shuko Sato
DOI:10.1246/cl.1985.1907
日期:1985.12.5
Treatment of the dianions of cyclic ketoximes with diphenyl disulfide underwent a regioselective sulfenylation at the syn α-carbons. Regioselective alkylation of cyclic ketoxime dianions, followed by sulfenylation with diphenyl disulfide, produced α-alkyl-α′-phenylsulfenyl ketoximes. A Beckmann fragmentation of these sulfenylated ketoximes gave ring cleaved products. This procedure provides a synthetically