addition reaction of trialkylphosphites to in situ generated ortho-quinone methides (o-QMs) for the construction of diaryl phosphonates in moderate to excellent yields with 1.5 mol % catalyst. Diastereoselective synthesis of P-chiral phosphinate esters is achieved with the use of dialkyl phenylphosphonites.
已经开发出基于N-杂环
磷二酰胺酸(NHPAs)的新型布朗斯台德酸催化剂。NHPA催化剂促进了三烷基
亚磷酸酯的
磷-迈克尔加成反应,以原位生成的邻-醌甲基化物(o- QMs),以1.5摩尔%的催化剂以中等至优异的收率构建二芳基
膦酸酯。非对映选择性合成P -手性
膦酸酯的酯与二烷基使用的phenylphosphonites实现。