Patent ID: 6262287
Filing Date: 2001-07-17
Classification: A61K,A61Q,C07F,C08G,C11D

Abstract:
A fragrance precursor compound of the general formula Ia or Ib: ##STR6##wherein X represents a group Y or a group R"",Y represents a group of the formula:--CR.sup.1 H--CR.sup.3 HACO(OR.sup.2);A represents (CR.sup.4.sub.2).sub.n wherein R.sup.4 represents a substituted or unsubstituted C.sub.1-8 alkyl group or a substituted or unsubstituted phenyl group or a hydrogen atom and whereby n is from 0-20 and each R.sup.4 is the same or different;R represents a substituted or unsubstituted C.sub.1-8 alkyl group or a substituted or unsubstituted phenyl group;R"" represents a hydrogen atom or a monovalent C.sub.1-8 hydrocarbon group;R.sup.1 represents a hydrogen atom or a substituted or unsubstituted C.sub.1-8 alkyl group or a substituted or unsubstituted phenyl group or a bond connecting CR.sup.1 and CR.sup.3 ;R.sup.3 represents a hydrogen atom or a substituted or unsubstituted C.sub.1-8 alkyl group or a substituted or unsubstituted phenyl group;OR.sup.2 represents the residue of an olfactory alcohol or of the enol form of an olfactory aldehyde or olfactory ketone;wherein ""r"" is from 0 to 250; ""s"" is from 0 to 20, and wherein at least one X denotes Y in the case that ""s""=0; ""t"" is from 0 to 10; and ""v"" is from 1 to 10.