820-00-8Relevant articles and documents
N,N,N',N'-TETRAMETHYLCHLOROFORMAMIDINIUM CHLORIDE AS AN EFFICIENT CONDENSATION REAGENT FOR A NOVEL ESTERIFICATION APPLICABLE TO THE MACROLIDE SYNTHESIS
Fujisawa, Tamotsu,Mori, Toshiki,Fukumoto, Kazumasa,Sato, Toshio
, p. 1891 - 1894 (2007/10/02)
N,N,N',N'-Tetramethylchloroformamidinium chloride, prepared easily from N,N,N',N'-tetramethylurea and oxalyl chloride, is found to be an efficient condensation reagent for an esterification of carboxylic acids with alcohols umder mild conditions in one-pot procedure, and the reagent is applied to the lactonization for macrolide synthesis from ω-hydroxycarboxylic acids.