1) strawberriff ester
草莓酸酯
1.
Solid super acids SO 4 2- /M\-xO\-y were choosed for the first time to catalyze the synthesis of strawberriff esters and SO 4 2- /ZrO\-2-TiO\-2 was selected as the best one.
选用SO4 2 -/MxOy 型固体超强酸催化草莓酸的酯化反应 ,筛选出催化剂SO4 2 -/ZrO2 -TiO2 ,制备该催化剂的最优条件为 :钛锆物质的量比为 4∶1,氨水调节pH值 8~ 9,用浓度为 0 5mol/L硫酸浸渍 ,马弗炉 5 5 0℃焙烧 3h ;使用该催化剂合成草莓酸酯的最优酯化条件为 :催化剂用量 3g/mol,酯化时间 3h ,其催化合成草莓酸戊酯产率可达 90 8%。
2) fraistone
草莓酯
1.
Synthesis of a New Type Perfume fraistone Catalyzed by Heteropoly Acids(salt);
杂多酸(盐)催化新型香料草莓酯的合成
2.
In the presence of catalyst of inorganic salts,inorganic acids,heteropoly acids(salts),solid super-acids,fraistone has been synthesized by the condensation reaction of ethyl acetoacetate with 1,2-propanediol.
综述了无机盐、无机酸、杂多酸(盐)、固体超强酸等催化剂催化合成草莓酯的实验情况。
3.
The fraistone was synthesized by the condensation reaction of ethyl acetoacetate (A) with 1,2 propanediol (B) in the presence of a composite catalyst which is composed of levulinic acid and cupric sulfate.
在果酸和硫酸铜复合催化剂存在下,以乙酰乙酸乙酯(A)和1,2丙二醇(B)为原料经脱水缩合合成了新型香料草莓酯。
3) fructone-B
草莓酯
1.
Supported 12-Phosphotungstic Acid and Its Salts as Catalysts for the Synthesis of Fructone and Fructone-B;
负载型杂多酸(盐)催化剂催化合成苹果酯和草莓酯
2.
Their catalytic activities were measured by synthesis of fructone-B from ethyl acetoacetate and 1,2-propanediol.
制备了一系列以脱铝超稳Y沸石(DUSY)为载体的磷钨酸(PW)及其铯盐催化剂,考察了催化剂在以乙酰乙酸乙酯和1,2-丙二醇为原料催化合成草莓酯反应过程中的性能。
5) tart cherries.
酸草莓
6) strawberry yoghurt
草莓酸奶
1.
The technology of strawberry yoghurt fermented by Lactobacillus which were immobilized by sodium alginate were studied.
研究用海藻酸钠包埋乳酸菌发酵草莓酸奶工艺。
补充资料:草莓酸
分子式:C5H10O2
分子量:114.15
CAS号:3142-72-1
性质:无色液体。熔点24.4℃。沸点106.5℃(1.33kPa,反式),94-94.4℃(1.33kPa,顺式)。相对密度0.9821(20/4℃)。折光率1.4572。
制备方法:一般采用2-甲基-2-戊烯醛氧化的方法,氧化剂可采用硝酸银,但硝酸银消耗较大,约占原料成本的五分之三。
用途:该品具有新鲜草莓香气,风味浓郁醇厚而又持久,用于调配食用草莓香精。
分子量:114.15
CAS号:3142-72-1
性质:无色液体。熔点24.4℃。沸点106.5℃(1.33kPa,反式),94-94.4℃(1.33kPa,顺式)。相对密度0.9821(20/4℃)。折光率1.4572。
制备方法:一般采用2-甲基-2-戊烯醛氧化的方法,氧化剂可采用硝酸银,但硝酸银消耗较大,约占原料成本的五分之三。
用途:该品具有新鲜草莓香气,风味浓郁醇厚而又持久,用于调配食用草莓香精。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条