| abstract |
Formula (I): wherein if the total number of carbon atoms in the R 1 and R 2 groups is 10 or more, then R 1 is H, an aliphatic group or an aromatic group, and R 2 is an aliphatic group or an aromatic group; R 3 , R 4 and R 6 are each independently hydrogen or C (O) R 5 so that a compound of the formula R 5 C (O) R 6 C = CR 3 R 4 is a substance having an odorrent or flavor property. Is an organic fraction, and R 5 is hydrogen or an organic fraction; Or formula (II): R 8 R 9 C = NR 10 , wherein R 10 is an aliphatic or aromatic group having at least 10 carbon atoms; R 8 and R 9 are each independently hydrogen or if only one of R 8 and R 9 is hydrogen, the compound of formula R 8 R 9 C═O together with C═O results in a substance having an odorrent or flavor property Organic fraction; Or formula (III): wherein R 1 is H, an aliphatic group or an aromatic group and if the total number of carbon atoms in R 1 and R 2 is 10 or more, then R 2 is an aliphatic or aromatic group; Z is CH 2 or O, n is 0 or 1, wherein the ring is a ring divided into 5 or 6 parts, and R 11 is alkyl or alkenyl having up to 10 carbon atoms to form a compound of formula (IV) Is; Pro-orientants or pro flavorants are disclosed which are materials having odorant or flavourant properties. Methods of making these compounds and their use as fragrances and flavoring agents are also disclosed. |