Levocetirizine Dihydrochloride was prepared from benzoyl chloride by acidylation,hydrogenation,cyclization with an overall yield of 8.05%.
以苯甲酰氯
原料,经酰
,还原,环
等反应
成左旋西替利嗪盐酸盐,反应总收率
8.05%。
(作用)
;
;
触反应的;
氢
作用
剂
Levocetirizine Dihydrochloride was prepared from benzoyl chloride by acidylation,hydrogenation,cyclization with an overall yield of 8.05%.
以苯甲酰氯
原料,经酰
,还原,环
等反应
成左旋西替利嗪盐酸盐,反应总收率
8.05%。
The target compound was synthesized from N-benzyl protected aminoacetophenone through hydrogenation,benzoylation and reduction.
以氮-苄基保护胺基酮
原料,经氢
,苯甲酰
,还原三步
成双苯甲酰沙丁胺醇酯。
A method for the synthesis of hexylene glycol by catalytic hydrogenation from diacetone is presented.
介绍以双丙酮醇
原料,经催
加氢
成异己二醇的方法。
The hydrogenation of terpineol to dihydroterpineol catalyzed by Raney Nickel modified by potassium borohydride was studied.
研究了以硼氢
钾修饰的雷尼镍催
剂催
松油醇加氢制备二氢松油醇的反应。
Nerolidol was prepared by selective partial hydrogenation of dehydronerolidol at normal or nearly normal pressure in presence of a catalyst.
脱氢橙花叔醇在催
剂存在和常
(
近常
)下发生选择性部分氢
反应,形成橙花叔醇。
Sevoflurane is synthesized from aceton by vapor phase catalytic fluorination, vapor phase catalytic hydrogenation,chloridization and fluoromethylation, which gives a new synthetic method.
以丙酮
原料,经氯
、气相氟
、气相氢
及氟甲基
等一系列改进的方法
成了七氟醚,提供了一条新的
成路线。
The quality of diesel oil producing was advanced by isomery pour point depression technique applying in hydrogenation unit in Harbin Petroleum Company Branch of PetroChina.
介绍了中国石油哈尔滨石
公司柴油加氢精制-临氢降凝装置采用异构降凝技术提高产品柴油质量的生产情况。
The diolefins and alkenyl aromatics are very unstable components which can give gums by polymerization.In giving olefins and alky aromatics the hydrogenation improves the product quality.
二烯烃和烯基芳烃是非常不稳定的组分,可
产生凝胶。对于给定烯烃和烷基芳烃,氢
可以改善产品质量。
The catalysts used to hydrogenate polymer containing polydiolefin units are introduced in this paper.The mechanism of SBS hydrogenation and the development of the kinetics are also referred to.
介绍了目前用于含
双烯烃链节的
物加氢的催
剂的种类,讨论了SBS加氢的机理及加氢动力学的研究进展。
The THFA product of hydrogenation in common pressure has been used in enzymatic reaction and expressed the same result as that of THFA from Sigma, the cost of reduction by hydroborates is lower.
常
氢
法的产品已用来代替进口试剂作
酶促反应的辅酶,但硼氢
物还原法成本最低,且能
成满足酶促反应要求的产物。
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