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- The synthesis of styralyl propionate can be achieved by microwave with ferric chloride and p toluenesulfonic acid as the catalysts. 报道以三氯化铁、对甲苯磺酸为催化剂,在微波辐射下合成丙酸苏合香酯。
- Triarylmethane structure polymer can be prepared from pyrene, phenol respective, and bezaldehyde as cross linking agent in the presence of p toluenesulfonic acid catalyst. 分别以芘、苯酚为原料，以苯甲醛为交联剂，对甲基苯磺酸为催化剂合成出具有三芳基甲烷结构的聚合物。
- The n butyl gallate was synthesized by esterification of butyl alcohol and gallic acid in catalysis of p methyl toluenesulfonic acid (PTSA) induced by microwaves. 采用微波辐射技术，以对甲苯磺酸（PTSA）作催化剂，没食子酸和正丁醇直接酯化合成没食子酸正丁酯。
- Benzaldehyde(0.049mol) was treated with isopropylthiol(12mL) in the presence of p toluenesulfonic acid (3mmol) to give 84.9% benzaldehyde isopropyl mercaptal. 苯甲醛和异丙硫醇在对甲苯磺酸催化下发生反应，合成相应的缩硫醛，产率达84．9%25。
- Purpose To prepare trenbolone acetate in five steps from estra 4,9 diene 3,17 dione. Methods Estra 4,9 diene 3,17 dione(1) was treated with methanol in the presenece of p? toluenesulfonic acid to give 3,3? 目的 由雌甾 4,9 二烯 3 ,1 7 二酮 (1 )经五步合成醋酸群勃龙 (6)。
- p - toluenesulfonic acid of catalyst 对甲苯磺酸
- The research was concentrated on the co catalysis effect and the related catalytic mechanism of strong acids,such as amino sulfonic acid, p toluenesulfonic acid and fluoroboric acid. 研究了氨基磺酸、氟硼酸及对甲苯磺酸的助催化作用,并探讨了其催化机理。
- Closing time at this pub is eleven o' clock. 这酒馆的打烊时间是十一点。
- We've got the OK from the council at last. 我们终於获得了委员会的同意。
- Catalytic Synthesis of Tributyl Citrate by Activated Carbon Supported Para - toluenesulfonic Acid 活性炭固载对甲苯磺酸催化合成柠檬酸三丁酯
- The child's mouth formed a big O in surprise. 那孩子惊奇得张著嘴像个大O字。
- Catalyzing n- Butyl Lactate Synthesis by p- Toluenesulfonic Acid Supported on Activated Carbon under Microwave Irradiation 微波辐射下活性炭固载对甲苯磺酸催化合成乳酸正丁酯
- p-Anisaldehyde was treated with isopropylthiol in the presence of p toluenesulfonic acid to give p anisaldehyde isopropyl mercaptal with 84.9% yield. 茴香醛和异丙硫醇在对甲苯磺酸催化下发生反应;合成了相应的缩硫醛;产率达84.;9%25。
- p-Anisaldehyde was treated with isopropylthiol in the presence of p toluenesulfonic acid to give p anisaldehyde isopropyl mercaptal with 84. 茴香醛和异丙硫醇在对甲苯磺酸催化下发生反应;合成了相应的缩硫醛;产率达84.;9%25。
- He gave me a taste of his acid wit. 他让我尝到了他敏锐尖刻之机智的滋味。
- Acid irritates the stomach lining. 酸能刺激胃黏膜。
- Acid had pitted the surface of the silver. 酸把银器的表面腐蚀了。
- Ok may I have your last name and first initial, please? 好的。请您告诉我贵姓及大名的头一个字母。
- Only when everything is ok will the patent be registered. 只有一切都顺利，才能登记专利。
- I am doing an experiment of neutralizing acid. 我在做一个中和酸的实验。
