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EP1654209A1 PROCESS FOR THE PREPARATION OF A COSMETIC ACTIVE 有权
一种用于生产化妆品活性CONNECTION

PROCESS FOR THE PREPARATION OF A COSMETIC ACTIVE
摘要:
A process for the preparation of a compound of formula (I) wherein R is a hydrogen or a C1-6 alkyl group which is straight chain, branched or cyclic, with or without an oxygen, nitrogen or sulphur heteroatom anywhere in the chain or ring by reacting a compound of formula (II) with a source of hydrogen selected from either hydrogen or water in the presence of a mixture of at least two catalysts selected from nickel, raney nickel, and palladium, at a pH below 7.0 in a solvent medium comprising an alcohol having a carbon chain length of up to 3.
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