329218-12-4
329218-12-4 結(jié)構(gòu)式
基本信息
3-溴-4-氯苯甲醇
(3-溴-4-氯苯基)甲醇
3-Bromo-4-chlorobenzyl alcohol
3-Bromo-4-chlorobenzenemethanol
Benzenemethanol, 3-bromo-4-chloro-
3-Bromo-4-chlorobenzyl alcohol 97%
(3-BROMO-4-CHLORO-PHENYL)-METHANOL
物理化學(xué)性質(zhì)
制備方法
42860-10-6
329218-12-4
以3-溴-4-氯苯甲酸為原料合成3-溴-4-氯芐醇的一般步驟: A. 在氮?dú)獗Wo(hù)和0℃條件下,向3-溴-4-氯苯甲酸(10.0g,42.5mmol)在THF(50mL)中的混合物中緩慢加入1.0M硼烷-THF溶液(55.3mL,55.3mmol)。反應(yīng)混合物在室溫下攪拌過夜后,小心倒入NaHCO3/H2O/冰的混合物中,并用EtOAc萃取。有機(jī)層用飽和NaCl水溶液洗滌,經(jīng)MgSO4干燥,過濾后減壓濃縮,得到目標(biāo)產(chǎn)物3-溴-4-氯芐醇(9.4g,100%),為透明無色油狀物。1H NMR(300MHz,CDCl3)δ7.61(s,1H),7.41(d,J=5.1Hz,1H),7.21(d,J=5.1Hz,1H),4.63(s,2H),2.12(br s,1H)。
參考文獻(xiàn):
[1] Patent: WO2011/79102, 2011, A1. Location in patent: Page/Page column 132
[2] Synlett, 2014, vol. 25, # 1, p. 123 - 127
[3] Patent: WO2013/142396, 2013, A1. Location in patent: Page/Page column 55
[4] Patent: US2006/154915, 2006, A1. Location in patent: Page/Page column 29
[5] Patent: WO2003/99776, 2003, A1. Location in patent: Page 63
