acids with amines in the presence of 1,3-diazabicyclo[5.4.0]-undec-7-ene (DBU) is reported. HCF2CF2OCF2CF2SO2F cannot serve as a condensing agent for anhydridization of carboxylic acids, however, HCF2CF2OCF2CF2SO2F/(CH3)3SiCN system can mediate anhydridization of some aromatic carboxylic acids.
5 H -3-氧杂八
氟戊磺酰
氟(HCF 2 CF 2 OCF 2 CF 2 SO 2 F)作为新型高效的
缩合剂用于
羧酸与醇的酯化和
羧酸与胺的酰胺化报道了1,3-二
氮杂双环[5.4.0]-十一碳-7-烯(
DBU)。HCF 2 CF 2 OCF 2 CF 2 SO 2 F不能用作
羧酸脱
水的
缩合剂,但是HCF 2 CF 2 OCF 2 CF 2 SO 2 F /(
CH3)3 SiCN系统可以介导某些芳香族
羧酸的脱
水反应。