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US 12,545,852 B2Granted
Odorants and compositions comprising odorants
AssigneeS H Kelkar and Company Limited
InventorsAvdhoot D. Velankar, Kedar Ramesh Vaze, Mayur S. Mukim, Vivek S. Gaware
Life of this patent
Estimating the term…
Abstract
The present invention relates to substituted hexahydro-5H-chromen-5-one and/or substituted tetrahydrobenzofuran-4(2H)-one derivatives which are useful as fragrance or flavor materials.
Claims17
Compounds of formula A or of formula B
- wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, and R10 are independently selected from a group consisting of hydrogen, C1 to C5 alkyl or C1 to C5 alkenyl, with the proviso that
- compounds of formula A don't include compound of formula A-exc, and
- compounds of formula B don't include compounds of formulae B-exc1, B-exc2 and B-exc3
Dependencies are inferred from the claim text.