A Convenient Synthesis of Ethyl 1-Amino-3-(Substituted Phenyl)-2-Cyano-3H-Benzo[4,5]Thiazolo-[3,2-a] Pyridine-4-Carboxylate Derivatives and Some of Their Reactions: Scientific Explanation
In an EtOH/TEA solution at room temperature, ethyl 2-(benzo[d]thazol-2-yl)acetate (3) was combined with various arylidinemalononitrile derivatives (4a-c) to produce the compounds shown. The ethyl iminothiazolopyridine-4-carboxylate (6) was produced by treating 3 with 2- (ethoxymethylene)-malononitrile (4f) under the same reaction conditions.
Read More