1) Malate-A
苹果酯-A
1.
Study on Synthesis of Malate-A & Malate-B catalyzed by SO_4~(2-)-TiO_2/Al_2O_3 Solid Superacidic Catalyst;
SO_4~(2-)-TiO_2/Al_2O_3固体超强酸催化合成苹果酯-A和苹果酯-B的研究
2) fructone-B
苹果酯-B
1.
Study of synthesis of fructone-B by cation exchange resin;
阳离子交换树脂催化合成苹果酯-B的研究
2.
The property, aroma characteristic and application of fructone-B were discussed.
用柠檬酸作为催化剂,由1,2-丙二醇和乙酰乙酸乙酯通过缩羰基化反应合成了苹果酯-B。
3.
Ammonium ceric sulfate is a good catalyst for synthesizing fructone-A and fructone-B,the yield can reach up to 94.
以硫酸高铈铵为催化剂,通过乙酰乙酸乙酯分别与乙二醇和1,2-丙二醇反应合成了苹果酯-A和苹果酯-B,研究了催化剂等有关因素对产品收率的影响。
3) fraistone
苹果酯-B
1.
Synthesis of fructone and fraistone catalyzed by H_3PW_(12)O_(40)/C;
H_3PW_(12)O_(40)/C催化合成苹果酯和苹果酯-B
2.
The yield of fraistone was 84.
制备了环境友好催化剂活性炭负载磷钨酸H3PW12O40/C,并以H3PW12O40/C为催化剂催化合成了香料苹果酯-B。
3.
The yield of fraistone was 79.
以自制的稀土改性固体超强酸SO_4~(2-)/TiO_2-MoO_3-La_2O_3为多相催化剂,乙酰乙酸乙酯和1,2-丙二醇为原料合成了苹果酯-B。
4) ethyl acetoacetate 1,2-propanediol ketal
苹果酯-B
1.
Ethyl acetoacetate 1,2-propanediol ketal was synthesized from ethyl acetoacetate and 1,2-propylene glycol in the presence of H_3PW_(12)O_(40)/PAn.
报道了磷钨酸掺杂聚苯胺催化剂H3PW12O40/PAn的制备,通过乙酰乙酸乙酯和1,2-丙二醇反应合成了苹果酯-B,探讨了磷钨酸掺杂聚苯胺催化剂对缩酮反应的催化活性,较系统地研究了原料量比,催化剂用量,反应时间诸因素对产品收率的影响。
6) 2-Methyl-2-ethyl acetoacetate-1,3-dioxolane
苹果酯
1.
Synthesis of 2-methyl-2-ethyl acetoacetate-1,3-dioxolane by using H_4SiW_(12)O_(40)/PAn as Catalyst;
硅钨酸掺杂聚苯胺催化剂催化合成苹果酯
2.
The effects of molar ratio of ethyl acetoacetate to ethylene,the catalyst dosage and reaction time on the yield of 2-methyl-2-ethyl acetoacetate-1,3-dioxolane were investigated.
以单质碘为催化剂,通过乙酰乙酸乙酯和乙二醇反应合成了苹果酯,考察了乙酰乙酸乙酯与乙二醇摩尔比、碘催化剂用量、反应时间对产品收率的影响,并用单质碘催化剂与其他催化剂进行催化活性比较。
补充资料:苹果酯
分子式:
CAS号:
性质:乙酰乙酸乙酯的乙二醇缩酮。无色液体。具强的苹果样香气。沸点99~101℃(2.3kPa),1.083~1.091,1.431~1.435。由乙酰乙酸乙酯和乙二醇用酸性催化剂存在下共沸脱水合成取得。用于香水等日用香精,用量可达30%。
CAS号:
性质:乙酰乙酸乙酯的乙二醇缩酮。无色液体。具强的苹果样香气。沸点99~101℃(2.3kPa),1.083~1.091,1.431~1.435。由乙酰乙酸乙酯和乙二醇用酸性催化剂存在下共沸脱水合成取得。用于香水等日用香精,用量可达30%。
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