| abstract |
Organic materials which contain from 0.001 to 10% by weight of an aminoreductone I <IMAGE> I where R1, R2 and R3 are H, methyl or ethyl and R4 is the radical of a naturally occurring alpha - or beta -aminoacid or of a C1-C10-alkyl ester thereof or, in the case of an alpha -aminoacid, a lactone having a 2-OH group in the cyclohexenone ring, or R4 is C1-C20-alkyl which is unsubstituted or substituted by -OH, C1-C4-alkoxy or C1-C4-acyloxy, or is -(CH2-CH2-O)nH, which may be etherified with a C1-C4-alkanol or esterified with a C1-C4-fatty acid, and where n is from 2 to 10, or a mineral salt thereof. Novel compounds Ia differ from I in having the radical R4a, where R4a is R4 with the exception of methyl. Compounds I are prepared by reacting the corresponding 2,3-dihydroxycyclohex-2-en-1-one with an amine HN(R3)R4 or a mineral acid salt thereof. |