作者:Stephen P. Marsden、James T. Steer、Barry S. Orlek
DOI:10.1016/j.tet.2009.03.105
日期:2009.7
Stable silylketenes, prepared by rhodium-catalysed decomposition of silyldiazoketones, undergo addition/cyclocondensation sequences with aminophenols and aminomalonate to give α-silylalkylbenzoxazoles and oxazoles, respectively. The silicon can be retained throughout functional group interconversions or can be removed by protodesilylation under acidic conditions as desired.
通过铑催化的甲硅烷基重氮酮的分解制备的稳定的甲硅烷基烯酮与氨基酚和氨基丙二酸酯进行加成/环缩合序列,分别得到α-甲硅烷基烷基苯并恶唑和恶唑。硅可以在整个官能团互变中保留,或者可以根据需要在酸性条件下通过原甲硅烷基化除去。