The Establishment Of The Herb Ketone Synthesis Process And Gas Chromatographic Analysis Method

Synthsis of Herbac with dihydromyrcene as reactant was studied, On the basis of the experiments some conclusion are obtained. The study shows:1 A process for sythsising Herbac,we have obtained other compounds-Aph ermate and α ,3,3-trimethyl cyclohexahe methanol2 A process for sythsising Aphermate,the results showed that the optium condition shou|d be that m(formic acid):m(dihydromyrcene):m(TYN-l catalyst)=3:5:1,reaction time 5h,reaction temperature 55℃ ?this compound is formed by treating dihydromyrcene with formic acid in the presence of a sulfonic acid resin or TS-1 catalyst,the selectivity reached 32.8% and 52.31% respectively,, But this compound is formed by treating dihydromyrcene with formic acid in the presence of TYN-1 catalyst, the selectivity reached 63.99%. the reaction time was less than domestic report by 5 times The catalyst can use continuously seven times,and have very good stability of activity The catalyst dosage was less than domestic report by 2.5 times 3 A process for oxidation, under chromic acid-acetic acid-water reaction system condtion,yield of the product was 42.25%,and chromium lost easily under TYN-2 oxidant condtion,yield of the product was 84.77% This oxidan't is very stable and can be kept air at room temperature for several months without losing its activity The experimental resules provide entific basis for cleaner production 4 Under reaction system of alkali as catalyst condtion, yield of α ,3,3-trimethyl cyclohexane methanol was 80.5% This reaction system can advance quality of the product, and can meet the need of industry production5 Quality of Herbac accorded with Internation Flavors & Fragrances company standard 6 A method has developed for the determination Aphermateo RSD are 0.042% and 0.60% respectively, correlation equation: Y1=135.8X1-0.37 and Y2=6.5X2+0.021 correlation coefficient: r1=0.99l7 and r2=0.9911 7 A method has developed for the determination Herbac RSD are 0.066% and 0.16% respectively, correlation equation: Y1=0.81+33.05X1 and Y2=0.15+4.9X2 correlation coefficient: r1=0.9992 and r2=0.9999...