Pallamum(II)-Catalyzed Cyclization 0fⅣ-(2′,4′-Dienyl)-2 alkynamides t0α一Alkylidene-γ-butyrolactams

• 来源期刊: 中国化学（英文版）
• 学科: 化学
• 年，卷（期）: 2001,（12）
• 页码范围: 1285-1288
• 页数: 4页
• 分类号: O6
• 语种: 英文

摘要

In the presence of CuCI2,N-(2,4′-dienyl)-2-alkynamidescan be converted to α-alkylidene-γ-butyrolactams under thecatalysis of palladium(II).In this reaction,CuCl2 is used tooxidize Pdd(0) to regenerate Pd(H),or the carbon-palladium bond is quenched by the oxidative cleavage reaction of CuCl2.``