哌嗪及其N-取代衍生物的合成与生产
白国义,董洁
Synthesis and manufacture of piperazine and its N-substituted derivatives
BAI Guoyi, DONG Jie
河北大学学报(自然科学版) . 2018, (5): 472 -479 .  DOI: 10.3969/j.issn.1000-1565.2018.05.005