With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.16154-62-4,1-(2-Chloro-4-nitrophenyl)-4-methylpiperazine,as a common compound, the synthetic route is as follows.
[3-Chloro-4-(4-methyl-1-piperazinyl)phenyl]amine: 1-(2-chloro-4-nitrophenyl)-4- methylpiperazine (13.5 g, 52.8 mmol) was dissolved in Methanol (200 mL), and treated with platinum(IV) oxide (0.120 g, 0.528 mmol). The reaction was evacuated and back filled with H2 twice, then stirred for 48 hours under an H2 atmosphere. The crude mixture was filtered through a pad of celite, washed with MeOH, and concentrated to give the title compound as an orange solid (12 g, 100%). 1H NMR (400 MHz, METHANOL-^) delta ppm 2.35 (s, 3 H) 2.62 (br. s., 4 H) 2.95 (br. s., 4 H) 6.63 (dd, J=8.53, 2.76 Hz, 1 H) 6.75 – 6.81 (m, 1 H) 6.90 – 6.97 (m, 1 H); MS (m/z) 226 (M+H+)., 16154-62-4
16154-62-4 1-(2-Chloro-4-nitrophenyl)-4-methylpiperazine 2837294, apiperazines compound, is more and more widely used in various fields.
Reference：
Patent; GLAXO GROUP LIMITED; CASILLAS, Linda, N.; CHAKRAVORTY, Subhas, J.; EIDAM, Patrick; HAILE, Pamela, A.; HUGHES, Terry, Vincent; LAKDAWALA SHAH, Ami; LEISTER, Lara, Kathryn; MILLER, Nathan, Andrew; RAHMAN, Attiq; SEHON, Clark, A.; WANG, Gren, Z.; ZHANG, Daohua; WO2011/120026; (2011); A1;,
Piperazine – Wikipedia
Piperazines – an overview | ScienceDirect Topics