Unsaturated cyclic and acyclic carbamates exhibiting taste and flavor enhancement effect in flavor compositions

Abstract

The present invention relates to novel compounds having sweet, salt or umami taste enhancement qualities. These compounds have the structure: where Ris H or methyl;Ris selected from the group consisting of H, C1-C4 alkyl, alkenyl;Ris selected from the group consisting of H, phenyl, C1-C10 straight or branched chain alkyl, alkenyl, alkynyl, alkyldienyl, acyclic or containing no more than one ring, which contains no more than a total of five heteroatoms selected from F, O, S, N, and P; and if R═H, Rand Rtaken together can represent cyclopropyl, cyclobutyl, cyclopentyl, cyclopentenyl, cyclohexyl, or cyclohexenyl, which contains no more than two of each heteroatom selected from N, O, and S;or if R, Rand Rtaken together can represent one, or two aromatic rings, which contain no more than three of each heteroatom selected from F, N, S, and O.Ris selected from the group consisting of H, methyl or ethyl;Ris selected from the group consisting of H, methyl and ethyl;Ris selected from the group consisting of H, C1-C9 straight or branched chain alkyl, alkenyl, alkyldienyl, acyclic or containing no more than one ring;except for in the case of structurewhen if R═H or methyl and R═H or methyl, Ras described above and phenyl;or when R, R, and Rtaken together can be equal to Ris selected from the group consisting C1-C4 alkyl, or alkenyl.