申请人:Betzer Marcus
公开号:US20070100160A1
公开(公告)日:2007-05-03
Process for esterification of farnesol in an initial mixture comprising alpha-bisabolol, farnesol and optionally other components, with the following steps: 1. Preparation or production of the initial mixture, 2. Adding (i) a transesterification catalyst and (ii) one or more compounds of formula (B)
R
2
Y
n
CO
2
R
1
(B)
in which the following applies:
R
1
stands for an alkyl residue with 1 to 12 C atoms;
R
2
stands for hydrogen, an alkyl residue with 1 to 20 C atoms, a cycloalkyl residue with 5 to 20 C atoms, an aryl residue with 6 to 20 C atoms or a heteroaryl residue with 5 to 20 C atoms; and
Y stands for CH
2
, CH(Me), CH(Et), C(Me)
2
, CH
2
—CH(Me), CH(Me)-CH
2
or CH
2
—CH(Me)-CH
2
and n stands for a whole number from 0 to 6; or
R
2
stands for a group CO
2
R
3
, R
3
standing for an alkyl residue with 1 to 12 C atoms; and
Y stands for CH
2
, CH(Me), CH(Et), C(Me)
2
, CH
2
—CH(Me), CH(Me)-CH
2
or CH
2
—CH(Me)-CH
2
and n stands for a whole number from 0 to 8, or Y stands for an optionally substituted phenyl or naphthyl ring with a total of at most four substituents on the ring, n=1 applying.
醇酯化过程中的步骤,首先混合α-双萜醇,芳樟醇和可选的其他成分,包括以下步骤:1. 制备或生产初始混合物,2. 添加(i) 一种酯交换催化剂和(ii) 一个或多个符合以下公式的化合物(B)R2YnCO2R1(B),其中以下情况适用:R1代表具有1至12个碳原子的烷基残基;R2代表氢、具有1至20个碳原子的烷基残基、具有5至20个碳原子的环烷基残基、具有6至20个碳原子的芳基残基或具有5至20个碳原子的杂环芳基残基;Y代表CH2、CH(Me)、CH(Et)、C(Me)2、CH2—CH(Me)、CH(Me)-CH2或CH2—CH(Me)-CH2,n代表0至6的整数;或R2代表一个羧基CO2R3,R3代表具有1至12个碳原子的烷基残基;Y代表CH2、CH(Me)、CH(Et)、C(Me)2、CH2—CH(Me)、CH(Me)-CH2或CH2—CH(Me)-CH2,n代表0至8的整数,或Y代表在环上最多有四个取代基的苯或萘环,n=1。