Pyrrolidine and iodine catalyzed domino aldol-Michael-dehydrogenative synthesis of flavones
作者:Mayuri M. Naik、Santosh G. Tilve、Vijayendra P. Kamat
DOI:10.1016/j.tetlet.2014.04.051
日期:2014.5
A one pot synthesis of flavones is established from 2′-hydroxyacetophenones and substituted aromatic aldehydes. The method uses domino aldol-Michael-oxidation reactioncatalyzed by pyrrolidine as a base and iodine as an oxidant in dimethyl sulfoxide.
A method of providing a range of flavors to an orally-receivable or ingestible product, the method including adding at least one compound, including salts thereof, of the formula:
wherein R
1
may be H, OH, O(CH
2
)
2
OH, OCH
2
OCH
3
or
R
2
may be selected from a range of 5- and 6-membered heterocyclic rings, and wherein R
3
may be H or OH. The compounds give rise to a wide range of flavors, and some are useful as sweetness enhancers, this allowing sweetener content to be reduced while maintaining sweetness. Also disclosed are orally-receivable or ingestible products including the compounds.
A method of providing a range of flavors to an orally-receivable or ingestible product, the method including adding at least one compound, including salts thereof, of the formula:
wherein R
1
may be H, OH, O(CH
2)
2
OH, OCH
2
OCH
3
or
R
2
may be selected from a range of 5- and 6-membered heterocyclic rings, and wherein R
3
may be H or OH. The compounds give rise to a wide range of flavors, and some are useful as sweetness enhancers, this allowing sweetener content to be reduced while maintaining sweetness. Also disclosed are orally-receivable or ingestible products including the compounds.
Provided herein are methods for treating conditions associated with a chemosensory receptor, including diabetes, obesity, and other metabolic diseases, disorders or conditions by administering a composition comprising a chemosensory receptor ligand. Also provided herein are chemosensory receptor ligand compositions and methods for the preparation thereof for use in the methods of the present invention.