Reductive alkylation of thioureas: a highly practical synthesis of unsymmetrical N,N′-disubstituted thioureas
作者:Lech Ciszewski、Daquiang Xu、Oljan Repič、Thomas J. Blacklock
DOI:10.1016/j.tetlet.2004.08.182
日期:2004.10
A highly practical synthesis of unsymmetrical N,N′-disubstituted thioureas by the reductive alkylation of N-monosubstituted thioureas with aldehydes is described. N-Monosubstituted thioureas can in turn be synthesized by the reductive amination of thiourea with an appropriate aldehyde. This reductive alkylation methodology was also extended to carbamates.
的非对称的高度实用的合成Ñ,Ñ '二取代的硫脲通过还原性烷基化Ñ单取代与醛硫脲进行说明。N-单取代的硫脲反过来可以通过将硫脲与适当的醛还原胺化来合成。该还原性烷基化方法也扩展到氨基甲酸酯。