Activated Nitriles in Heterocyclic Synthesis. Novel Synthesis of 5-Imino-5H-[1]benzopyrano[3,4-c]pyridine-4(3H)-thiones and Their Oxo Analogues

Autor: Elgemeie, Galal E H, Elghandour, Ahmed H H
Zdroj: Bulletin of the Chemical Society of Japan; April 1990, Vol. 63 Issue: 4 p1230-1232, 3p
Abstrakt: Various benzopyrano[3,4-c]pyridine-4(3H)-thione derivatives and their oxo analogues were prepared by condensation of cyanothioacetamide or cyanoacetamide and salicylaldehyde with ketones or activated nitriles in the presence of ammonium acetate.
Databáze: Supplemental Index