Pro-benefit-agent compounds with carbon/nitrogen bonds
AssigneeThe Procter & Gamble Company
InventorsSean N. Natoli, Rajan Keshav Panandiker, Gregory Scot Miracle, Jenna Marie Hoover
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Abstract
Pro-benefit-agent compounds that include a benefit agent fragment joined to a hydrophobically modified core, such as a hydrophobically modified amino acid, by a carbon/nitrogen linking bond, where the fragment is derived from a benefit agent, such as a perfume raw material, that includes an aldehyde moiety or a ketone moiety. Related treatment compositions, premix compositions, and methods of making and using such compositions.
Claims21
A pro-benefit-agent compound, wherein the compound is characterized by a structure according to Formula II:
- wherein G is selected from —O—, —S—, or —N(R3)—,
- wherein R3, if present, is selected from —H or a monovalent moiety with a molecular weight of from about 15 to about 142 Da;
- wherein Q is a hydrophobic moiety that comprises 5 to 34 chain atoms and is a monovalent organic group;
- wherein the index m is from one to six;
- wherein R1 and R2 are independently selected from —H or a monovalent moiety with a molecular weight of from about 15 to about 1000 Da;
- wherein Z is a benefit agent fragment of a benefit agent that comprises an aldehyde moiety, a ketone moiety, or combinations thereof;
- wherein ** represents a linking bond between the nitrogen atom and a carbon atom of the Z group, wherein the linking bond is one of
- (a) a double bond, thereby forming an imine bond, or
- (b) a single bond formed from a 1,4-addition when the benefit agent from which the benefit agent fragment is derived comprises an alpha-beta unsaturated carbonyl-containing moiety that is an aldehyde moiety or a ketone moiety, wherein when ** represents a single bond, the nitrogen atom is further bonded to a hydrogen (—H);
- wherein when the linking bond cleaves, the benefit agent is released.
The pro-benefit-agent compound according to any preceding claim, wherein:
- G=—O—;
- m=1;
- R1 is a side group of a proteinogenic amino acid;
- R2 is —H;
- Z is a fragment of a perfume raw material;
- and
- Q is an organic group comprising from about 8 to about 18 chain atoms, preferably wherein the chain atoms are carbon atoms.
Dependencies are inferred from the claim text.