N-alkylpropargylamines are converted into N-alkylideneallylamines in the presence of rhenium(I) complexes as catalysts is described. Among the additives tested, certain pyridine N-oxides and tertiary amine N-oxides were effective for the reaction to proceed, and in particular, the use of 2,6-lutidine N-oxides gave the best results. The choice of a diphenylmethyl group as a substituent on the nitrogen
氧化还原异构化反应,其特征在于Ñ -alkylpropargylamines被转换成Ñ中
铼的存在-alkylideneallylamines(I)配合物作为催化剂进行说明。在测试的添加剂中,某些
吡啶N-氧化物和叔胺N-氧化物对于反应进行是有效的,特别是使用2,6-二
甲基吡啶N-氧化物可获得最佳结果。选择二苯甲基作为氮原子上的取代基是反应成功的关键,使其完全完成。