Anil-Synthese. 19. Mitteilung†. Über die Herstellung von Stilbenyl-Derivaten des Isoxazols

摘要: Preparation of Stilbenyl Derivatives Pyrazoles Schiffs bases derived from 1-, 3- and 5-(p-formylphenyl)phenylpyrazoles p-chloroaniline are reacted with various p-tolyl substituted aromatic heterocycles in the presence dimethylformamide potassium hydroxide or t-butoxide to yield corresponding heterocyclic stilbenes (anil synthesis). Introduction a chloro substituent 4- 4,5-positions pyrazole system causes decrease hypsochromic shift absorption fluorescence maxima title compounds.