Preparation of a caryophyllene alcohol mixture in perfume compositions

摘要

A process for preparing a mixture of isomers of caryophyllene alcohol and dihydrocaryophyllene alcohol including 10,10-dimethyl-2,6-dimethylene bicyclo[7.2.0]undecan-5-ol by isomerizing caryophyllene oxide or dihydrocaryophyllene oxide using an aluminum isopropylate catalyst in a toluene solvent at temperatures in the range of from about 100 DEG C. up to about 150 DEG C. is described.