Synthesis of <i>trans</i>-2,6-Disubstituted Cyclohexanones through Allylic Substitution
作者:Yuichi Kobayashi、Chao Feng、Atsushi Ikoma、Narihito Ogawa、Takayuki Hirotsu
DOI:10.1021/ol403472y
日期:2014.2.7
cyclohexanones were synthesized with high regio- and stereoselectivity by allylic substitution followed by ozonolysis. Both alkyl and aryl groups were successfully installed to the cyclohexane ring. The stereochemistry of the SN2′ products was determined to be controlled by the pre-existing chirality on the ring. The present method is highlighted by the synthesis of enantiomerically enriched cyclohexanones
通过烯丙基取代,然后进行臭氧分解,以高区域选择性和立体选择性合成反式-2,6-二取代的环己酮。烷基和芳基均成功安装在环己烷环上。S N 2'产物的立体化学被确定为受环上预先存在的手性控制。通过对映体富集的环己酮的合成突出了本方法。