e under catalysis by PdCl2(PhCN)2. The same imines were formed almost quantitatively by noncatalyzed reaction of the azide with the corresponding vinylic ethers. The rate of the catalyzed reaction was found to be first order each in the allylic ether and in the azide. Easiness of the imine formation from the allylic ethers depended on the nature of azide, decreasing in the order of N3SO2Me>N3CO2Me>N3Ph
在 PdCl2(PhCN)2 的催化下,
叠氮甲酸酯与
烯丙基醚反应生成 1-烷氧基-1-(烷氧基羰基亚
氨基)
烷烃。通过
叠氮化物与相应
乙烯基醚的非催化反应,几乎定量地形成了相同的
亚胺。发现催化反应的速率在
烯丙基醚和
叠氮化物中分别为一级。从
烯丙基醚形成
亚胺的难易程度取决于
叠氮化物的性质,按 N3SO2Me>N3CO2Me>N3Ph 的顺序递减。基于这些结果,提出了催化反应最可能的机理。