Branched C=C and C−N Bond Cleavage on Enaminones toward the Synthesis of 3‐Acyl Quinolines

Abstract

Abstract Domino reactions between N , N ‐dimethyl enaminones and anilines affording quinolines have been accomplished by using triflic acid. The construction of quinolines proceeds by the cleavage of the branched C=C and C−N bond in the enaminones that provides C2−C3 and C4 fragments, respectively. Two new C−C bonds and a new C−N bond are formed during the product formation.