A new route to secondary amines from bis-(alkoxymethyl)-alkylamines - the activation of an aminomethyl group and protection of the product by the same functional group
作者:Martyn J. Earle、Robin A. Fairhurst、Harry Heaney、George Papageorgiou、Robert F. Wilkins
DOI:10.1016/s0040-4039(00)97589-0
日期:1990.1
variety of acidic reagents affords good yields of N-alkoxymethyl-N-alkylmethyleneiminium salts which react with trimethylsilyl enol ethers, and nucleophilic aromatic substrates to form protected secondary amines or tertiary amines by domino reactions; silyl ketene acetals afford tertiary amines only.
的治疗N,N- -双用各种酸性试剂,得到良好的产率的(烷氧基)烷基胺Ñ -alkoxymethyl- Ñ -alkylmethyleneiminium盐,其与三甲基甲硅烷烯醇醚反应,亲核芳族底物,通过多米诺形式保护的仲胺或叔胺反应; 甲硅烷基乙烯酮缩醛仅提供叔胺。