Stereochemistry of an Ene Reaction Involving 1,7-Dienes; Bicyclo[3.3.1]nonanes from (3-Cyclohexenyl)diallylcarbinols
作者:Alan F. Thomas、Marina Lander-Schouwey
DOI:10.1002/hlca.19840670124
日期:1984.2.1
(3-Cyclohexenyl)diallylcarbinols undergo a thermal retro-enereaction to give crotonylcyclohexenes at ca. 200°. A side-reaction is an enereaction to give bicyclo[3.3.1]nonanes. These become the main products above 300°. The stereochemistry of 2-allyl-1,4,6-trimethylbicyclo[3.3.1]-6-none-2-ols and related compounds is discussed, and a case is described in which the allyl group is not freely rotating.