Reactions of 2-phenylcyclohexanone derivatives. A re-examination
作者:Bernard Miller、Hoi-Suen Wong
DOI:10.1016/0040-4020(72)80073-5
日期:1972.1
The product commonly obtained from bromination of 2-phenylcyclohexanone is cis-2-bromo-6-phenylcyclohexanone, formerly considered to be 2-bromo-2-phenylcyclohexanone. The initial bromination product, however, is trans-2-bromo-6-phenylcyclohexanone. The two stereoisomers are readily interconverted in acid, and the cis-isomer is normally obtained due to its lower solubility in several solvents. Dehydrobromination
通常由2-苯基环己酮溴化得到的产物是顺式-2-溴-6-苯基环己酮,以前被认为是2-溴-2-苯基环己酮。然而,最初的溴化产物是反式-2-溴-6-苯基环己酮。两种立体异构体很容易在酸中相互转化,由于其在几种溶剂中的溶解度较低,因此通常可得到顺式异构体。在脱溴化氢的顺式或反式溴酮给出的混合物2- phenylcyclohex -2-烯-1-酮和6- phenylcyclohex -2-烯-1-酮,其不相互转化的反应条件下。2-苯基环己基-2-烯-1-酮的烷基化和氰基乙基化通常在C-2进行。