单词查询
piperazine
释义
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n. 【化】对二氮己环； 网络释义： 哌嗪；二乙烯二胺；无水哌嗪；
例句
Piperazine was separated from ethylenediamine byproduct polyethylene polyamines mixture by refrigeration and azeotrope distillation.
通过冷冻、共沸蒸馏，从多乙烯多胺混合物中分离出哌嗪。
The synthesis of piperazine and its derivatives from hydroxylamine was discussed in this paper.
本文讨论了以羟胺为原料环合得到哌嗪及其衍生物。
Another way was to combine directly anhydrous piperazine with 2, 3-dichloro- bromobenzene through Ullmann reaction.
二是直接用无水哌嗪与2,3-二氯溴苯通过乌尔曼反应合成。
Piperazine citrate is the drug of choice in the treatment of Ascaris infestations .
And the reaction solvent is water or a water solution of the n-methyl piperazine.
所述的反应溶剂为水或N-甲基哌嗪的水溶液。
Q is a piperidine or piperazine ring that can have a bridge or a fused ring.
Q为哌啶或哌嗪环，其可具有桥基或稠合环。
1-(2, 3-dichlorophenyl)piperazine is a kind of pharmaceutical intermediate.
1-（2,3-二氯苯基）哌嗪是一种重要的医药中间体。
Objective To study improved synthetic method of 1-[(4-chlorophenyl)phenylmethyl]-piperazine, the intermediate of cetirizine hydrochloride.
目的探讨西替利嗪的中间体1-犤（4-氯苯基）苯甲基犦-哌嗪的合成方法的改进。
通过冷冻、共沸蒸馏，从多乙烯多胺混合物中分离出哌嗪。
The synthesis of piperazine and its derivatives from hydroxylamine was discussed in this paper.
本文讨论了以羟胺为原料环合得到哌嗪及其衍生物。
Another way was to combine directly anhydrous piperazine with 2, 3-dichloro- bromobenzene through Ullmann reaction.
二是直接用无水哌嗪与2,3-二氯溴苯通过乌尔曼反应合成。
Piperazine citrate is the drug of choice in the treatment of Ascaris infestations .
And the reaction solvent is water or a water solution of the n-methyl piperazine.
所述的反应溶剂为水或N-甲基哌嗪的水溶液。
Q is a piperidine or piperazine ring that can have a bridge or a fused ring.
Q为哌啶或哌嗪环，其可具有桥基或稠合环。
1-(2, 3-dichlorophenyl)piperazine is a kind of pharmaceutical intermediate.
1-（2,3-二氯苯基）哌嗪是一种重要的医药中间体。
Objective To study improved synthetic method of 1-[(4-chlorophenyl)phenylmethyl]-piperazine, the intermediate of cetirizine hydrochloride.
目的探讨西替利嗪的中间体1-犤（4-氯苯基）苯甲基犦-哌嗪的合成方法的改进。