5H-3-oxa-Octafluoropentanesulfonyl fluoride: a novel and efficient condensing agent for esterification, amidation and anhydridization
作者:Zhaohua Yan、Weisheng Tian、Fanrong Zeng、Yanfeng Dai
DOI:10.1016/j.tetlet.2009.03.102
日期:2009.6
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。