TY JOUR TI Quantum-chemical study of the carboxylation reaction of 4-aminophenol, 4-acetylaminophenol and their salts in the synthesis of 5-aminosalicylic acid KW carboxylation KW 4-aminophenol KW 4-acetylaminophenol KW 5-aminosalicylic acid KW mesalazine KW thermodynamic functions KW Gibbs free energy JO From Chemistry Towards Technology Step-By-Step AU Varvarkin, S.V. AU Soloviev, M.E. AU Gerasimova, N.P. PY 2022 IS 3 PB Yaroslavl State Technical University