Discovery of KOH/BrCH
2
SO
2
F as Water‐Removable System for Clean, Mild and Robust Synthesis of Amides and Peptides
摘要:
AbstractHerein we described an efficient, practical, and robust protocol for amides and peptides synthesis from carboxylic acids and amines using the combination of bromomethanesulfonyl fluoride (BMSF) with inorganic base KOH as a water‐removable system. This method is featured with broad substrate scope, excellent functional group compatibility, high yields, operational simplicity, and easy purification, which will exert great potential in amide and peptide synthesis.
A pyrrolidine-mediated Knoevenagel-type reaction for highlystereoselective construction of novel α-halo-1,3-dienylsulfonyl fluorides was achieved in up to 100% Z-selectivity and high yields at room temperature from condensation of the readily available aldehydes and halomethanesulfonyl fluorides. This protocol provided a class of unique α-halo-1,3-dienylsulfonyl fluorides with wide scope and excellent
A reductive dehalogenative process for chemo- and stereoselective synthesis of 1,3-dienylsulfonyl fluorides
作者:Yu-Zhen Zeng、Jian-Bai Wang、Hua-Li Qin
DOI:10.1039/d2ob01434c
日期:——
A method for the mild and efficient synthesis of 1,3-dienylsulfonyl fluorides was developed via dehalogenation of α-halo-1,3-dienylsulfonyl fluorides in the presence of zinc powder and acetic acid, achieving exclusive chemo- and stereoselectivities. This protocol was successfully applied to the synthesis of heterocyclic dienylsulfonyl fluorides and polyene sulfonyl fluoride.