Iranian chemical communication 2423-4958 6 Issue 3, pp. 218-324, Serial No. 20 2018 07 01 Synthesis, characterization and selective oxidation using a new copper (II) Schiff base complex derived from Alanine and 4-chloro3- formyl coumarin 228 241 3627 EN Malihe Ebrahimpour Department of Chemistry, Faculty of Sciences, University of Birjand Ghodsieh Bagherzade Department of Chemistry, Faculty of Sciences, University of Birjand Ali Akbar Sajadi Sharif University of Technology Rouhollah Khani Department of Chemistry, Faculty of Sciences, University of Birjand Journal Article 2016 10 08 A novel Schiff-base ligand (L: 2-[(4-chloro-2-oxo-2H-chromen-3-ylmethylene)-amino] propionic acid) was prepared from the reaction of 4-chloro3-formylcoumarin and alanine amino acid. Copper (II) complex was synthesized from the reaction of the ligand with Cu (OAc)2. H2O in ethanol. The ligand and its metal complex were characterized by elemental analysis (CHN), ICP, thermal analysis (TGA), Fourier transform infrared spectroscopy (FT-IR), 1HNMR, and 13C NMR techniques. The complex was found to be an efficient catalyst and reusable in the selective oxidation of sulfides to the corresponding sulfoxides without the formation of any sulfone using the green oxidant, H2O2, at room temperature and under solvent-free conditions. https://icc.journals.pnu.ac.ir/article_3627_b89e45068bc08202c4fdd9933f098e7d.pdf