Patent ID: 6987084

Claim:
A photo-labile pro-fragrance conjugate having the formula: [photo-labile unit]—(L) n —[pro-fragrance unit] wherein said [photo-labile unit] is sciected from the group consisting of: wherein each R 1 is independently hydrogen, a unit which can substitute for hydrogen, C 1 -C 12 substituted or unsubstituted hydrocarbyl unit; said units which can substitute for hydrogen are selected from the group consisting of; i) —NHCOR 30 ; ii) —COR 30 ; iii) —COOR 30 ; iv) —COCH═CH 2 ; v) —C(═NH)NH 2 ; vi) —N(R 30 ) 2 ; vii) —NHC 6 H 5 ; viii) ═CHC 6 H 5 ; ix) —CON(R 30 ) 2 ; x) —CONHNH 2 ; xi) —NHCN; xii) —OCN; xiii) —CN; xiv) F, Cl, Br, I, and mixtures thereof; xv) ═O; xvi) —OR 30 ; xvii) —NHCHO; xviii) —OH; xix) —NHN(R 30 ) 2 ; xx) ═NR 30 ; xxi) ═NOR 30 ; xxii) —NHOR 30 ; xxiii) —CNO; xxiv) —NCS; xxv) ═C(R 30 ) 2 ; xxvi) —SO 3 M; xxvii) —OSO 3 M; xxviii) —SCN; xxix) —P(O)H 2 ; xxx) —PO 2 ; xxxi) —P(O)(OH) 2 ; xxxii) —SO 2 NH 2 ; xxxiii) —SO 2 R 30 ; xxxiv) —NO 2 ; xxxv) —CF 3 , —CCl 13 , —CBr 3 ; xxxvi) and mixtures thereof; wherein R 30 is hydrogen, C 1 -C 20 linear or branched alkyl, C 6 -C 20 aryl, C 7 -C 20 alkylenearyl, and mixtures thereof; M is hydrogen, or a salt forming cation; each R 2 is independently hydrogen, C 1 -C 12 alkyl, and mixtures thereof; X is —OH; B is selected from the group consisting of: L units are —OC(O)—, —NR 3 C(O)—, —OC(R 3 R 4 )—, —C(O)—, and mixtures thereof; n is 0 or 1; the [pro-fragrance unit] has the formula: wherein each each R 3 and R 4 is hydrogen; G 1 is —Y; G 2 is hydrogen; Y is selected from the group consisting of 2,6,6-trimethylcyclohex-2-enyl, 2,6,6-trimethylcyclohex-1-enyl, 2,6,6-trimethylcyclohex-1-enyl, and 2,6,6-trimethylcyclohex-3-enyl.