| 摘要 |
The present invention relates to beta-amino ester compounds of active alcohols of formula (I), wherein each R'1, R'2, R1, R2, independently, is selected from hydrogen, alkyl group and aryl group, wherein each R1, R2, independently, is selected from hydrogen, alkyl group and aryl group; and of formulae (II) and (III), wherein each n, n1, independently, is an integer lying in the range from 1 to 20, and wherein n2 is an integer lying in the range of 1 to 6, wherein each n3, independently, is an integer lying in the range from 1 to 3, and wherein each R, independently, is an organic chain of an active alcohol, preferably a perfume alcohol. The present compound is preferably used as a precursor of the corresponding betaine ester compound. The present invention also relates to said beta-amino ester compounds of active alcohols in alkaline environment which upon and after use will allow a slow release of the active component.
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