专利号:US-2021206711-A1 优先权日:2020-01-03 标 题:Synthesis of the Grape Mealybug Pheromone trans-alpha-Necrodyl Isobutyrate 发明人:CHEBNY VINCENT JAMES 权利人:TRECE INC 摘要:Methods are provided for synthesizing the grape mealybug pheromone, trans-α-necrodyl isobutyrate, starting with essential plant oils that contain trans-α-necrodyl acetate. The synthesis method, in two steps, converts the trans-α-necrodyl acetate to trans-α-necrodol and then converts the trans-α-necrodol to the desired trans-α-necrodyl isobutyrate. The first step can be achieved by either of a hydrolysis reaction or a reduction reaction. In the hydrolysis reaction, the essential oil is mixed in an alcohol solvent with a hydroxide base, or by mixing the essential oil in an aqueous acid. A reduction reaction can instead by performed in an organic solvent in the presence of a reducing agent. The trans-α-necrodol is converted to the desired trans-α-necrodyl isobutyrate by an esterification reaction with a carboxylic acid, an acyl halide, or an acid anhydride.
专利号:US-4294727-A 优先权日:1979-05-05 标 题 :Perfume composition containing 4,5-dioxa-5-alkyl-tricyclo[7.2.1.0 2,8 ]dodec-10-enes and its use as an odorant 发明人:CONRAD JENS; UPADEK HORST; BRUNS KLAUS 权利人:HENKEL KGAA 摘要:This invention is directed to perfume compositions comprising 4,6-dioxa-5-C1-C8-alkyl or C2-C8-alkenyl-tricyclo[7.2.1.02,8]dodec-10-enes, the use of said tricyclododecenes as an odorant, the synthesis of said tricyclododecenes, and novel tricyclododecenes.