作者:H.-J. Cristau、D. Virieux、A. Hervé、F. Loiseau
DOI:10.1055/s-2003-41045
日期:——
The synthesis of a new series of arylhydroxymethylphosphinic acid derivatives is described. The protected compounds were prepared by a palladium(0) catalysed arylation of ethyl benzyloxymethylphosphinate with aryl halides. Subsequent hydrogenolysis of the benzyl protecting group followed by acidic hydrolysis of the ester function readily afforded the target compounds. Selective removal of the ester group was achieved by basic hydrolysis whereas acidic hydrolysis directly gave the totally deprotected compounds.
介绍了合成一系列新型苯甲醇基次膦酸衍生物的方法。首先通过钯(0)催化的芳基化反应,将乙基苄氧甲基次膦酸酯与芳基卤化物反应制得保护化合物。随后通过氢解去除苄基保护基团,再进行酸性水解断裂酯键,即可得到目标化合物。选择性移除酯键采用碱性水解,而酸性水解则直接得到完全去保护的化合物。