General
All reagents were purchased from Merck or Sigma-Aldrich and used without further purification. Thin-layer chromatography (TLC) was performed on pre-coated silica gel 60 F-254 plates (Merck, Germany). NMR spectra were recorded on a Bruker…
Preparation, characterization, and application of a valine-malonic acid based-DES as a potent catalyst for the green synthesis of thiazolopyrimidines
