发明公开
EP0148301A2 1,2,3,3,5,6,-Hexamethyl-bicyclo(2.2.2)-oct-5-en-2-ol, process for producing same, intermediates useful in said process and organoleptic uses of same 失效
1,2,3,3,5,6六甲基双环(2,2,2)辛-5-烯-2-醇及其制造方法,在该方法中互连和其感官应用是有用的。

1,2,3,3,5,6,-Hexamethyl-bicyclo(2.2.2)-oct-5-en-2-ol, process for producing same, intermediates useful in said process and organoleptic uses of same
摘要:
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:
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:
with the compound having the structure:
in order to produce the ketone defined according to the structure:

which is hydrogenated to form the compound having the structure:
and further hydrogenated to form the ketone having the structure:
This ketone is reacted with CH 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:
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:
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