1) Diethylenediamine Hexahydrate
六水哌嗪
2) Piperazine, hexahydrate
哌嗪(六水)
3) Piperazine, hexahydrate
六水合哌嗪
4) piperazine hexahydrate
哌嗪六水合物
5) piperazine
[英][pi'perəzi:n] [美][paɪ'pɛrə,zin, pɪ-]
无水哌嗪
1.
1-(2,3-dichlorophenyl)piperazine is synthesized from 2,3-dichloronitrobenzene and piperazine by alkylation, acidulation, reduction of nitro group, diazotization, substitution and hydrolysis reaction with the total yield of 48 2%.
以2,6-二氯硝基苯和无水哌嗪为原料,经过烃化、乙酰化、硝基还原、重氮化与取代及水解等反应合成了1-(2,3-二氯苯基)哌嗪,总收率48。
2.
The title compound was obtained as a white crystalline powder by the reaction of bromodiphenylmethane with anhydrous piperazine in toluene at about 90 ℃ for 7 h, and then by washing with water, extracting with acid, neutralizing with sodium hydroxide and recrystallizing in toluene, its yield was 83.
以甲苯为溶剂 ,二苯溴甲烷和无水哌嗪于 90℃反应 7h,然后依次水洗 ,萃取 ,碱调 p H,重结晶 ,制得白色结晶二苯甲基哌嗪 ,熔点 91～ 92℃ ,纯度 99。
3.
The paper has reviewed the market development and related uses of piperazine.
本文首先简要介绍了无水哌嗪的市场发展情况以及相关用途。
6) anhydrous piperazine
无水哌嗪
1.
The optimum synthetic conditions were found as follows:n (1-cyclopropyl-6-fluoro-7-chloro-1, 4-dihydro-4-oxo-quinoline-3-carboxylic acid)/n (anhydrous piperazine)/n(triethylamine) = 1∶1.
以环丙沙星中间体与无水哌嗪为原料经缩合反应制备了环丙沙星。
2.
4,4'- dinitrobenzyl Piperazine is prepared as intermediate by the condensation of anhydrous piperazine and P-nitrobenzyl chloride.
以无水哌嗪、对硝基氯苄为原料,进行缩合反应得到4,4’-二硝基苄基哌嗪,然后再用氯化亚锡还原制得4,4’-二氨基苄基哌嗪,并且找到了最佳反应条件。
补充资料：六水哌嗪
分子量194.23
分子式 C4H10N2·6H2O
CAS号 142-63-2
白色或浅黄结晶,溶于水和酸，熔点（mp）:43-45 ℃，沸程(BP):125-130 ℃。该品具有腐蚀性，能引起烧伤、入眼应立即用大量水冲洗后请医生治疗。大量使用时应穿适当的防护服。应密封避光于阴凉处保存。
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