Derivatives of 1-H-2-benzazepin-1-one as unusual products of the Hantsch reaction

The use of opianic acid as the aldehyde component in the Hantsch reaction gives derivatives of 1-H-2-benzazepin-1-one instead of the expected 1,4-dihydropyridine derivatives. Latvian Institute of Organic Synthesis, LV-1006 Riga Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 10, pp. 1408–1410, October, 1998.