61337-89-1

基本信息
1-(3-羟甲基吡啶-2-基)-4-甲基-2-苯基哌嗪
1-(3-HYDROXYMETHYL PYRIDIN-2-YL)-4-METHYL-2-PHENYL PIPERAZINE
1-(3-HYDROXYMETHYLPYRIDINE)-2-PHENYL-4-METHYL-PIPERAZINE
2-(4-METHYL-2-PHENYL-1-PIPERAZINYL)-3-PYRIDINEMETHANOL
[2-(4-METHYL-2-PHENYLPIPERAZIN-1-YL)PYRIDIN-3-YL]METHANOL
1-(3-Hydroxymethylpyridyl-2)-2-Phenyl-4-Methylpyperazine
1-(3-Hydroxymethylpyridin-2-Yl
2-(4-methyl-2-phenyl-1-piperazinyl)-3-pyridinemethanol (intermediate of mirtazapine)
2-[(2-chloro-phenyl)-acetyl benzoic acid (intermediate of azelastine hcl)
2-[(2-phenyl-4-methyl)-piperazine-1-yl]pyridine-3-methanol (intermediate of mirtazapine)
1--3--2-(4-METHYL-2-PHENYL-1-PIPERAZINE)-3-PYRIDINE METHANOL (PREPARATION FOR MIRTAZAPINE)
D-(+)-METHYL-ALPHA-(2-THIENYLETHAMINO)(2-CHLOROPHENYL)ACETATEHCL
2-[(2-PHENYL-4-METHYL)-PIPERAZINE-1-YL]PYRIDINE-3-METHANO
物理化学性质
制备方法

61338-13-4

61337-89-1
以2-(4-甲基-2-苯基-1-哌嗪)-3-吡啶甲酸为原料合成2-(4-甲基-2-苯基-1-哌嗪基)-3-吡啶甲醇的一般步骤:向配备有搅拌叶片和温度计的2L四颈烧瓶中加入1618mL(1618mmol)1mol/L氢化铝锂的四氢呋喃溶液。随后,将120g(404mmol)的2-(4-甲基-2-苯基-1-哌嗪)-3-吡啶甲酸溶解于1800mL四氢呋喃中,保持反应温度在约25℃,并在30分钟内缓慢滴加该溶液至反应瓶中。滴加完毕后,继续在25℃下搅拌反应混合物3小时。反应完成后,缓慢加入70mL水,同时用水浴冷却反应溶液,并搅拌混合物。之后,分离有机层和水层,有机层依次用70mL 15wt%氢氧化钠水溶液和200mL水洗涤,分离后得到有机层。将有机层减压浓缩,得到2-(4-甲基-2-苯基-1-哌嗪基)-3-吡啶甲醇的粗产物。向粗产物中加入840mL乙酸异丙酯,加热至60℃使其完全溶解,然后在内部温度不低于50℃的条件下,缓慢滴加840mL庚烷。将所得溶液冷却至5℃,并在该温度下老化浆料2小时。随后,通过真空过滤收集固体,并用60mL乙酸异丙酯和60mL庚烷的混合溶液洗涤过滤得到的晶体。最后,将白色晶体在40℃下减压干燥5小时,得到102g(363mmol,产率:89%)的2-(4-甲基-2-苯基-1-哌嗪基)-3-吡啶甲醇,纯度为99.53%,水含量为320ppm。
参考文献:
[1] Patent: US2002/35255, 2002, A1
[2] Organic Preparations and Procedures International, 2007, vol. 39, # 4, p. 399 - 402
[3] Patent: JP2017/39659, 2017, A. Location in patent: Paragraph 0048-0049
[4] Patent: JP2017/88565, 2017, A. Location in patent: Paragraph 0060; 0061
[5] Patent: JP2017/88564, 2017, A. Location in patent: Paragraph 0056; 0057