Copper(II) Reagent-Promoted Degradation of<i>N</i>,<i>N</i>′-dialkyldiazenedicarboxamides
作者:Jun-ichi Yamaguchi、Yukihito Murayama、Takayuki Suyama
DOI:10.1246/bcsj.75.329
日期:2002.2
Degradation of N,N′-dialkyldiazenedicarboxamides with a copper(II) reagent, which was prepared from lithium 4-nitrophenoxide and copper(II) bromide in tetrahydrofuran, proceeded via formation of isocyanate to produce the corresponding 4-nitrophenyl N-alkylcarbamate with the evolution of nitrogen. Further, it was also found that 4-nitrophenyl N-alkylcarbamate reacted with primary or secondary amines
N,N'-二烷基二氮杂二甲酰胺用铜(II)试剂降解,铜(II)试剂由 4-硝基苯氧基锂和溴化铜(II)在四氢呋喃中制备,通过形成异氰酸酯进行,产生相应的 4-硝基苯基 N-烷基氨基甲酸酯氮的演变。此外,还发现4-硝基苯基N-烷基氨基甲酸酯与伯胺或仲胺反应得到相应的多取代脲。基于上述结果,我们开发了一种从 N,N'-二烷基二氮杂二甲酰胺一锅法制备多取代脲的新方法。