Process for the preparation of an alkynol with formula HC=C-C(OH)-R2 (formula 2) wherein R2 represents methyl, halomethyl or ethyl, wherein the corresponding silyl-protected alkynol ester with formula 1 (1) wherein R1 represents H, or an optionally substituted alkyl, an optionally substituted alkenyl or an optionally substituted (hetero)aryl group, R2 is as defined above and A3Si represents a trisubstituted silyl group wherein each A independently represents anoptionally substituted alkyl or an optionally substituted (hetero)aryl group, in the presence of water and at least an equivalent amount of amine functionalities is converted into the alkynol with formula 2. Preferably, the amount of water is between 0.5 and 3 equivalents calculated with respect to the amount of silyl-protected alkynol ester with formula (1).
制备化合物HC=C-C(OH)-R2(式2)的过程,其中R2代表甲基,卤代甲基或乙基,所述过程包括在
水和至少等当量的胺官能团存在下,将具有式1的相应
硅保护炔醇酯(1)转化为具有式2的炔醇,其中R1代表氢或可选择取代的烷基,可选择取代的烯基或可选择取代的(杂)芳基,R2如上所定义,A3Si代表三取代
硅基团,其中每个A独立表示可选择取代的烷基或可选择取代的(杂)芳基。优选,
水的量在0.5至3当量之间,计算公式(1)中的
硅保护炔醇酯的量。