Reaction of Olefins with α-Cyanoacetamide in the Presence of Manganese(III) Acetate
作者:Hidehiko Sato、Hiroshi Nishino、Kazu Kurosawa
DOI:10.1246/bcsj.60.1753
日期:1987.5
4-chlorophenyl-substituted olefins with α-cyanoacetamide in the presence of manganese(III) acetate. On the other hand, aryl substituted olefins having electron-donating groups are oxidized under similar reaction conditions to give 1,5-dihydro-2H-pyrrol-2-ones and 3-ethenyl-2-pyrrolidones. All these reactions also produce glycols or ketones which are given by the directoxidation of these olefins with manganese(III)
Amidoalkyl radicals, generatedfrom amides by Mn(OAc)3 in acetic acid react with phenyl substituted alkenes to generate five-membered lactones or lactams. Ultrasound at ambient temperature significantly accelerates these single electron transfer reactions even when compared with conventional conditions under reflux or simple mechanical stirring. In some cases sonication leads to unusual products.