Described is 1,2,3,3,5,6-hexamethyl-bicyclo[2.2.2]oct-5-en-2-ol as a mixture of isomers and in its isomeric forms having the structures: ##STR1## and the uses thereof in augmenting or enhancing the aroma of perfume compositions, perfumed articles, and colognes. Also described is a novel process for preparing 1,2,3,3,5,6-hexamethyl-bicyclo[2.2.2]oct-5-en-2-ol by first reacting the compound having the structure: ##STR2## with the compound having the structure: ##STR3## in order to produce the ketone defined according to the structure: ##STR4## which is hydrogenated to form the compound having the structure: ##STR5## and further hydrogenated to form the ketone having the structure: ##STR6## This ketone is reacted with CH.sub.3 M wherein M represents Li or MgX and wherein X is chloro, bromo or iodo to form the organometallic intermediate defined according to the structures: ##STR7## These compounds are then hydrolyzed with dilute acid to form the organoleptically useful 1,2,3,3,5,6-hexamethyl-bicyclo[2.2.2]oct-5-en-2-ol isomers of our invention defined according to the structures: ##STR8##
本文描述了1,2,3,3,5,6-六甲基双环[2.2.2]辛-5-烯-2-醇作为异构体混合物和其异构体形式,具有以下结构:##STR1##以及它们在增强香
水组合物、带香物品和古龙香
水的香气方面的用途。本文还描述了一种新的制备1,2,3,3,5,6-六甲基双环[2.2.2]辛-5-烯-2-醇的过程,首先将具有以下结构的化合物:##STR2##与具有以下结构的化合物反应:##STR3##以产生根据以下结构定义的酮:##STR4##,然后将其氢化以形成具有以下结构的化合物:##STR5##并进一步氢化以形成具有以下结构的酮:##STR6##这种酮与CH.sub.3 M反应,其中M代表Li或MgX,其中X为
氯、
溴或
碘,以形成根据以下结构定义的有机
金属中间体:##STR7##然后用稀酸
水解这些化合物以形成本发明的1,2,3,3,5,6-六甲基双环[2.2.2]辛-5-烯-2-醇的有机感官有用的异构体,其根据以下结构定义:##STR8##