946525-30-0

基本信息
2-溴-5-碘苯甲醇
2-溴-5-碘芐基醇
2-碘-5-溴苯甲醇
2-溴-5-碘代苯甲醇
(2-溴-5-碘苯基)甲醇
2-bromo-5-iodobenzenemethanol
(2-Bromo-5-iodophenyl)methanol
Benzenemethanol, 2-bromo-5-iodo-
4-bromo-3-hydroxymethyl-1-iodo-benzene
物理化學(xué)性質(zhì)
安全數(shù)據(jù)
常見(jiàn)問(wèn)題列表

25252-00-0

946525-30-0
以2-溴-5-碘苯甲酸為原料合成2-溴-5-碘-芐醇的一般步驟:在反應(yīng)燒瓶中加入四氫呋喃(99.7g)和硼氫化鈉(15.2g,0.4mol),隨后加入2-溴-5-碘苯甲酸(109.4g,0.34mol,按實(shí)施例2制備)的四氫呋喃(151g)溶液,控制溫度在10-25°C。在10-30°C下,緩慢滴加硫酸(16.4g)的四氫呋喃(25g)溶液至反應(yīng)容器中。滴加完畢后,于室溫下反應(yīng)2小時(shí)。隨后,將反應(yīng)混合物加熱至66°C回流2小時(shí),然后冷卻至室溫。緩慢滴加5%鹽酸(235g),隨后在減壓(~0.01MPa)下蒸餾除去四氫呋喃。加入甲基叔丁基醚(326.7g)和水(222.7g)以溶解固體,冷卻至15-25°C后,分離有機(jī)層并在減壓(-0.095MPa)下蒸發(fā)。加入甲苯(108.8g)和水(108.8g),將混合物加熱至60°C保持1小時(shí),然后冷卻至18-22°C。過(guò)濾后干燥,得到89.1g灰白色固體產(chǎn)物,經(jīng)測(cè)定含量>99%,產(chǎn)率為85.1%。
參考文獻(xiàn):
[1] Patent: CN107954861, 2018, A. Location in patent: Paragraph 0096; 0097
[2] Patent: WO2018/15410, 2018, A1. Location in patent: Paragraph 0304-0307
[3] Patent: US2014/31540, 2014, A1. Location in patent: Paragraph 0072; 0073; 0074
[4] Patent: WO2014/16381, 2014, A1. Location in patent: Page/Page column 12
[5] Patent: WO2014/161836, 2014, A1. Location in patent: Page/Page column 42