| 摘要 |
The present invention provides a compound having one of the following formulae: R and R1 are each independently H or C1-5 alkyl provided that in formula (I) when R is methyl, R1 is H or C2-5 alkyl. R2 has from 1 to about 12 carbon atoms and is a straight or branched aliphatic group, or a cyclic, heterocyclic or aromatic group. R3 and R4 are each independently H or CH3. Mixtures of these compounds, methods for their preparation, their use as perfume materials for application to a variety of substrates and their use in flavoring and in articles of manufacture is also provided. |
