申请人:UNILEVER PLC
公开号:EP0784936A1
公开(公告)日:1997-07-23
A process for preparing a savoury flavour, the process comprising reacting a compound of general formula X with hydrogen sulphide and/or cystein , wherein
X is:
in which R1 represents an alkyl group having 1 or 2 carbon atoms or hydrogen, R2 represents an alkyl group having from 1 to 4 carbon atoms or hydrogen, R3 represents an alkyl group having from 1 to 5 carbon atoms or hydrogen and R4 represents hydrogen or an organic radical consisting of from 1 to 6 carbon atoms, hydrogen and from 0 to 2 oxygen atoms.
X is preferably 4-hydroxy-2,5-dimethyl-2-(2-hydroxy-3-oxo-2-butyl)-3(2H)-furanone, and is formed from the reaction of 4-hydroxy-2,5-dimethyl-3(2H)-furanone and diacetyl.
2,5-dimethyl-4-mercapto-3(2H)-furanone is a flavour compound obtainable by this process.
一种制备美味风味的过程,该过程包括将一般式X的化合物与硫化氢和/或半胱氨酸反应,其中X为:其中R1代表具有1或2个碳原子的烷基基团或氢,R2代表具有1至4个碳原子的烷基基团或氢,R3代表具有1至5个碳原子的烷基基团或氢,R4代表氢或由1至6个碳原子、氢和0至2个氧原子组成的有机基团。X最好是4-羟基-2,5-二甲基-2-(2-羟基-3-氧代-2-丁基)-3(2H)-呋喃酮,并且由4-羟基-2,5-二甲基-3(2H)-呋喃酮和乙二酰反应形成。2,5-二甲基-4-巯基-3(2H)-呋喃酮是通过该过程获得的风味化合物。