COMPARATIVE STUDY OF RING-CHAIN ISOMERIC TRANSITIONS OF 2-CYANO-SUBSTITUTED BENZAMIDES AND BENZENESULFAMIDES

Article abstract of DOI:10.1007/BF00842833

The rate constants of cyclization and the constant of ring-chain equilibrium of N-isopropyl-2-cyano-substituted benzamide and benzamide and benzenesulfamide by the methods of PMR and IR spectroscopy, and it was shown that in the transition from 2-cyanobenzamides to 2-cyanobenzenesulfamides a sharp destabilization of the cyclic isomeric form is observed; however, the cyclization of 2-cyanobenzenesulfamides proceeds at a higher rate than the cyclization of 2-cyanobenzamides.