Рециклiзацiя 3-алкоксибензо[c]пiрилiю гiдразином як засiб “обертання” реакцiйної здатностi орто-ароїлфенiлацетатiв у синтезi 2,3-бензодiазепiн-4(3Н,5Н)-онiв

Abstract

Reactions of formation of 2,3-benzodiazepine-4(3Н,5Н)-ones from ortho-aroylphenylacetates and 1-aryl-3-alkoxybenzo[c]pyrylium salts are investigated. Basic differences are found in the course of cyclization processes. A new method for synthesis of 2,3-benzodiazepine-4(3Н,5Н)- ones with high yields and cleanliness of target products is developed for the discovery of new potential neuroprotective means.