Toward a total synthesis of brassinosteroids; structure assessment of the Ireland–Claisen products of geranyl and neryl esters
作者:O. Temmem、D. Uguen、A. De Cian、N. Gruber
DOI:10.1016/s0040-4039(02)00515-4
日期:2002.4
As estimated by 1H NMR analysis, thermal isomerisation of the kinetic silylenolate derived from the ester (Z)-8a proceeds with acceptable diastereo and facial selectivity, thence affording an acid having the required absolute configuration for further elaboration to brassinosteroids.
正如估计的通过1点H NMR分析,动力学silylenolate的热异构化由酯(衍生ž - )8A前进具有可接受非对映和面部选择性,从那里得到具有用于进一步阐述于油菜素所需要的绝对构型的酸。