An Improved Method for the Preparation OF 3,5-Difluorosalicylaldehyde and 3,5-Difluorosalicylic Acid<sup>#</sup>
作者:Michele A. Weidner-Wells、Stephanie A. Fraga-Spano
DOI:10.1080/00397919608004595
日期:1996.7
Abstract An improved method for the synthesis of 3,5-difluorosalicylic acid (3b) and 3,5-difluorosalicylaldehyde (3a) is described. 2,4-Difluorophenol (4) undergoes a formylation reaction to afford aldehyde 3a which is oxidized to the desired acid 3b. This method avoids the use of the highly corrosive HF and fluorine gas and requires no special laboratory apparatus. #Dedicated to the memory of Rosemarie
摘要 描述了一种合成 3,5-二氟水杨酸 (3b) 和 3,5-二氟水杨醛 (3a) 的改进方法。2,4-二氟苯酚 (4) 发生甲酰化反应得到醛 3a,醛 3a 被氧化为所需的酸 3b。这种方法避免了使用高腐蚀性的 HF 和氟气,并且不需要特殊的实验室设备。#纪念长岛大学化学系学术顾问 Rosemarie R. Ungarelli,CW 邮政中心。