通过冷冻、共沸蒸馏，从多乙烯多胺混合物中分离出哌嗪。
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。
1-（2,3-二氯苯基）哌嗪是一种重要的医药中间体。
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。
高效液相色谱法测人血浆中阿魏酸哌嗪浓度及其药动学研究
阿魏酸哌嗪对单侧输尿管梗阻大鼠肾间质纤维化的保护作用
1·Some method about synthesis of piperazine with aliphatic amine were introduced.
介绍了由脂肪胺合成哌嗪的几种方法。
2·Objective: To establish an HPLC method to determine the plasma concentrations of buspirone hydro-chloride (BuHCl) and its active metabolite 1 - pyrimidinyl - piperazine(1 - PP).
目的：建立高效液相色谱法测定血浆中盐酸丁螺环酮及其活性代谢物1-嘧啶哌嗪浓度的方法。
3·This paper introduces the marketing situation, price trend and major production processes of piperazine at home and abroad.
介绍了哌嗪的国内外市场状况、价格走势及主要生产方法。
4·Using different concentration piperazine and IPC or TMC, through changing immersion time, heat treatment time and temperature, composite nanofiltration membrane with good performance was prepared.
用不同浓度的哌嗪水相、酰氯有机相，通过改变两相处理的时间和热处理的时间与温度寻找合适的条件制备性能较佳的平板复合纳滤膜。
5·The compounds have the connecting ring structures of piperazine or piperidine, have notable antitumor activity, and provide a new choice for preparing antitumor drugs in clinical practice.
该类化合于具有哌嗪或哌啶的连接环结构，且具有显著的抗肿瘤活性，为临床上制备抗肿瘤药物提供了新的选择。