Laundry detergent compositions comprising .beta.-ketoester pro-fragrances

A liquid laundry detergent composition comprising:

• a) at least about 0.01% by weight, of a .beta.-ketoester selected from the group consisting of 3,7-dimethyl-1,6-octadien-3-yl 3(.beta.-naphthyl)-3-oxo-propionate, 2,6-dimethyl-7-octen-2-yl 3-(4-methoxyphenyl)3-oxo-propionate, 2,6-dimethyl-7-octen-2-yl 3-(4-nitrophenyl)-3-oxo-propionate, 2,6-dimethyl-7-octen-2-yl 3-(.beta.-naphthyl)-3-oxo-propionate, 3,7-dimethyl-1,6-octadien-3-yl 3-(4-methoxyphenyl)-3-oxo-propionate, (.alpha.,.alpha.-4-trimethyl-3-cyclohexenyl)methyl 3-(.beta.-naphthyl)-3-oxo-propionate, 3,7-dimethyl-1,6-octadien-3-yl 3-(.alpha.-naphthyl)-3-oxo-propionate, cis 3-hexen-1-yl 3-(.beta.-naphthyl)-3-oxo-propionate, 9-decen-1-yl 3-(.beta.-naphthyl)-3-oxo-propionate, 3,7-dimethyl-1,6-octadien-3-yl 3-(nonanyl)-3-oxo-propionate, 2,6-dimethyl-7-octen-2-yl 3-(nonanyl)-3-oxo-propionate, 2,6-dimethyl-7-octen-2-yl 3-oxo-butyrate, 3,7-dimethyl-1,6-octadien-3-yl 3-oxo-butyrate, 2,6-dimethyl-7-octen-2-yl 3-(.beta.-naphthyl)-3-oxo-2-methylpropionate, 3,7-dimethyl-1,6-octadien-3-yl 3(.beta.-naphthyl)-3-oxo-2,2-dimethylpropionate, 3,7-dimethyl-1,6-octadien-3-yl 3-(.beta.-naphthyl)-3-oxo-2-methylpropionate, 3,7-dimethyl-2,6-octadienyl 3-(.beta.-naphthyl)-3-oxo-propionate, 3,7-dimethyl-2,6-octadienyl 3-heptyl-3-oxo-propionate, and mixtures thereof;
• b) at least about 0.0 1% by weight, of a detersive surfactant selected from the group consisting of anionic, cationic, nonionic, zwitterionic, ampholytic surfactants, and mixtures thereof;
• c) from 0.01% to 0.88% by weight, of an enzyme selected from the group consisting of protease, lipase, cellulase, amylase, and mixtures thereof;
• d) the balance carriers and adjunct ingredients.

A method for providing enduring fragrance benefits to fabric comprising the step of contacting fabric with a detergent composition comprising:

• a) at least about 0.01% by weight, of a .beta.-ketoester selected from the group consisting of 3,7-dimethyl-1,6-octadien-3-yl 3-(.beta.-naphthyl)-3-oxo-propionate,2,6-dimethyl-7-octen-2-yl 3-(4-methoxyphenyl)-3-oxo-propionate, 2,6-dimethyl-7-octen-2-yl 3-(4-nitrophenyl)-3-oxo-propionate, 2,6-dimethyl-7-octen-2-yl 3-(.beta.-naphthyl)-3-oxo-propionate, 3,7-dimethyl-1,6-octadien-3-yl 3-(4-methoxyphenyl)-3-oxo-propionate, (.alpha.,.alpha.-4-trimethyl-3-cyclohexenyl)methyl 3-(.beta.-naphthyl)-3-oxo-propionate, 3,7-dimethyl-1,6-octadien-3-yl 3-(.beta.-naphthyl)-3-oxo-propionate, cis 3-hexen-1-yl 3-(.beta.-naphthyl)-3-oxo-propionate, 9-decen-1-yl 3-(.beta.-naphthyl)-3-oxo-propionate, 3,7-dimethyl-1,6-octadien-3-yl 3-(nonanyl)-3-oxo-propionate, 2,6-dimethyl-7-octen-2-yl 3-(nonanyl)-3-oxo-propionate, 2,6-dimethyl-7-octen-2-yl 3-oxo-butyrate, 3,7-dimethyl-1,6-octadien-3-yl 3-oxo-butyrate,2,6-dimethyl-7-octen-2-yl 3-(.beta.-naphthyl)-3-oxo-2-methylpropionate, 3,7-dimethyl-1,6-octadien-3-yl 3-naphthyl)-3-oxo-2,2-dimethylpropionate, 3,7-dimethyl- 1,6-octadien-3-yl 3-(.beta.-naphthyl)-3-oxo-2-methylpropionate, 3,7-dimethyl-2,6-octadienyl 3-(.beta.-naphthyl)-3-oxo-propionate, 3,7-dimethyl-2,6-octadienyl 3-heptyl-3-oxo-propionate, and mixtures thereof;
• b) at least about 0.01% by weight, of a detersive surfactant selected from the group consisting of anionic, cationic, nonionic, zwitterionic, ampholytic surfactants, and mixtures thereof;
• and
• c) the balance carriers and adjunct ingredients.