| 摘要 |
NEW MATERIAL:(Z)-5,(Z)-8,(E)-11-Tetradecatrien-2-one, (E)-5,(Z)-8,(E)-11-tetrade catrien-2-one, (Z)-5,(E)-8,(E)-11-tetradecatrien-2-one, (Z)-5,(E)-8,(Z)-11-tetradecatrien-2-one and (E)-5,(E)-8,(Z)-11-tetradecatrien-2-one of formula I. USE:An agent for imparting or modifying lasting fragrance of various perfumery composition, synthesizable easily at a low cost on an industrial scale, having lasting fragrance, and exhibiting the flavor and fragrance of fish, shellfish, algae, oil or fat, melon, fruit, etc. PREPARATION:The compound of formula I can be prepared by the catalytic hydrogenation of the compound of formula II in the presence of a catalyst, reacting the reaction product with phosphorus tribromide in the presence of pyridine, reacting further with the compound of formula III and subjecting the product to several steps such as hydrolysis, catalytic reduction with hydrogen in the presence of catalyst, etc. |
