Synthesis and Reactions of 2-Substituted Ethyl <i>N</i>-Alkylmalonylhydroxamic Acids
作者:Robert V. Hoffman、Sachin Madan
DOI:10.1021/jo0300690
日期:2003.6.1
Alkylation of O-silylated N-alkylmalonylhydroxamic acids provides a method for the synthesis of 2-substituted N-alkylmalonyl hydroxamic acids. The substituent at C-2 does not materially change the chemistry of the alpha-lactam intermediates produced from them. They can be converted to unsymmetric ureas and hydantoins in high yields. The addition of unsaturated substituents at C-2 is used to produce