65854-91-3

基本信息
4-氯阿戊苯胺
4'-氯新戊酰苯胺
4'-氯代新戊酰苯胺
N-特戊?;鶎?duì)氯苯胺
N-新戊?;鶎?duì)氯苯胺
N-(4-氯苯基)錐體
4-氯-N-叔戊?;?苯胺
N-(4-氯苯基)-2,2-二甲基丙酰胺
4-Chloropivalanilide
4'-CHLOROPIVALOANILIDE
N-Pivaloyl-p-chlorophenyl
4'-Chloropivaloanilide>
4-CHLORO-N-PIVALOYLANILINE
N-PIVALOYL-P-CHLOROANILINE
N-(4-chlorophenyl)pivalaMide
N-(4-CHLOROPHENYL)PIVALOYLAMIDE
4''-CHLOROPIVALOANILIDE,98.0%+(GC)
物理化學(xué)性質(zhì)
制備方法

3282-30-2

106-47-8

65854-91-3
以特戊酰氯和4-氯苯胺為原料合成N-新戊酰基對(duì)氯苯胺的一般步驟如下:參考實(shí)施例2,將4-氯苯胺(113kg,886mol)、去離子水(565L)和碳酸氫鈉(89.3kg,1.2當(dāng)量)加入到乙酸乙酯(1695L)中。在15℃或更低的溫度下,緩慢滴加新戊酰氯(112kg,1.05當(dāng)量)。滴加完畢后,將反應(yīng)液在約25℃下攪拌2小時(shí)。反應(yīng)完成后,分離有機(jī)層和水層。有機(jī)層用去離子水(848L×2)洗滌兩次,然后在減壓下濃縮至約600L。向濃縮液中加入乙基環(huán)己烷(848L),再次在減壓下濃縮至約600L。將殘余物冷卻至約5℃,并攪拌1小時(shí)以促進(jìn)結(jié)晶。過(guò)濾收集析出的晶體,并在減壓下干燥,得到N-新戊?;鶎?duì)氯苯胺(187kg,收率99.7%)。
參考文獻(xiàn):
[1] Patent: WO2005/121133, 2005, A1. Location in patent: Page/Page column 30-31
[2] Patent: US2009/247766, 2009, A1. Location in patent: Page/Page column 27
[3] Patent: WO2015/118515, 2015, A1. Location in patent: Page/Page column 9
[4] Journal of Organic Chemistry, 1998, vol. 63, # 23, p. 8536 - 8543
[5] Patent: CN105801442, 2016, A. Location in patent: Paragraph 0006; 0018; 0022; 0026; 0030