Acyclic enol ethers, isomers thereof, organoleptic uses thereof and processes for preparing same
申请人:——
公开号:US20040013779A1
公开(公告)日:2004-01-22
Described are synthetically produced substantially pure enol ether compositions which are cis and/or trans isomers of enol ethers having the structures:
1
wherein R
1
is C
4
-C
10
straight chain alkyl or C
9
8-alkenyl; and wherein R
2
is C
1
-C
4
alkyl, C
3
-C
4
2-alkenyl, C
4
3-alkenyl or C
10
non-allenic alkadienyl and uses thereof in imparting, augmenting or enhancing the aroma and/or taste of a consumable material such as a perfume composition, a cologne, a perfumed article such as a soap, cosmetic, hair preparation or detergent, a foodstuff, a chewing gum or an alcoholic or non-alcoholic beverage such as a carbonated beverage or fruit liquer. Also described is a process for synthesis of such enol ethers by means of (i) first forming an acetal having the structure:
R
1
—CH
2
—CH(OR
2
)
2
(ii) then carrying out a thermal decomposition reaction at pH<7 and then (iii) fractionally distilling the resulting reaction product to provide the enol ether.
本文介绍了合成的基本纯度的烯醇醚组合物,其为具有以下结构的烯醚的顺式和/或反式异构体:其中,R1为C4-C10直链烷基或C9-C8烯基;R2为C1-C4烷基,C3-C4 2-烯基,C4-3烯基或C10非亚麻烯烷基,以及其在赋予、增强或提高可食用物质的香味和/或口感方面的用途,如香水组合物、古龙香水、香皂、化妆品、发制品或洗涤剂、食品、口香糖或酒精或非酒精饮料,如碳酸饮料或果汁酒。本文还介绍了通过以下方法合成这种烯醇醚的过程:(i)首先形成具有结构的缩醛:R1—CH2—CH(OR2)2(ii)然后在pH<7的条件下进行热分解反应,然后(iii)分馏所得的反应产物以提供烯醚。