1214334-90-3

基本信息
2-bromo-4- (trifluoromethyl) benzoate
2-broMo-4-trifluoroMethylMethyl benzoate
Methyl 2-bromo-4-(trifluoromethyl)benzoate
2-Bromo-4-(trifluoromethyl)benzoic acid methyl ester
Benzoic acid, 2-bromo-4-(trifluoromethyl)-, methyl ester
物理化學(xué)性質(zhì)
安全數(shù)據(jù)
制備方法

328-89-2

74-88-4

1214334-90-3
在室溫及氮?dú)獗Wo(hù)下,將2g(7.434mmol)2-溴-4-三氟甲基苯甲酸(CAS:328-89-2)溶解于20ml DMF中。隨后,向該溶液中依次加入1.13g(8.177mmol)碳酸鉀和557μL(8.921mmol)碘甲烷。反應(yīng)混合物在氮?dú)夥諊聰嚢柽^(guò)夜。反應(yīng)完成后,將混合物倒入300ml水中,用乙酸乙酯(2×80ml)萃取水層。合并有機(jī)相,用無(wú)水硫酸鈉干燥,過(guò)濾后減壓濃縮。粗產(chǎn)物通過(guò)硅膠柱色譜法純化(洗脫劑:庚烷/乙酸乙酯,梯度0至10%),得到1.75g(收率83%)2-溴-4-三氟甲基苯甲酸甲酯,呈橙色油狀。
參考文獻(xiàn):
[1] Synthesis (Germany), 2012, vol. 44, # 14, p. 2173 - 2180
[2] Patent: US2010/197715, 2010, A1. Location in patent: Page/Page column 28
[3] Patent: US2011/53904, 2011, A1. Location in patent: Page/Page column 15
[4] Patent: WO2011/23667, 2011, A1. Location in patent: Page/Page column 26
[5] Patent: US2011/190349, 2011, A1. Location in patent: Page/Page column 10