Treatment of the substrates with this oxidant system afforded a variety of novel or scarce oxygenated derivatives in one-step. Structures of the isolated components, after chromatographic separation, were determined by spectroscopic methods including GC–MS and shift-correlated 2D-NMR techniques. Factors governing the regioselectivity and the possible mechanism for the oxyfunctionalization of the unactivated
组成的系统内消旋-5,10,15,20-tetramesitylporphyrinate
锇(II)羰基配合物[OS(
TMP)CO]作为预催化剂和叔正丁基
过氧化氢(
TBHP)作为供氧体是一种有效的区域选择性氧化剂体系,可用于五环和四环三
萜类化合物的一系列
过乙酸酯衍
生物中的未活化C–H键的烯丙基氧化,酮化和羟基化。用该氧化剂体系处理底物,一步一步即可得到各种新颖的或稀缺的氧化衍
生物。色谱分离后,分离出的组分的结构通过光谱方法确定,包括GC-MS和与位移相关的2D-NMR技术。还讨论了控制区域选择性的因素以及未活化碳的氧官能化的可能机理。