作者:David D. Díaz、M. G. Finn
DOI:10.1021/ol035995f
日期:2004.1.1
[reaction: see text] Formamidine ureas display a rich manifold of reactivity. Thiols induce substitution at the carbonyl carbon to give thiolcarbamates; base-mediated alkylation and acylation occurs at the terminal urea nitrogen, and a new fragmentation/acylation pathway has been uncovered with isocyanates.
[反应:见正文]甲Form
脲显示出丰富的反应活性。
硫醇诱导在羰基碳上的取代,生成巯基
氨基甲酸酯;碱介导的烷基化和酰化作用发生在末端
尿素氮上,并且已经发现了
异氰酸酯新的断裂/酰化途径。