Thermal and photochemical rearrangements, and X-ray crystal structure of a 2-benzazocine derivative
Abstract
Dimethyl 8-oxo-1-phenyl-12-azatricyclo[7,2,1,02,7]dodeca-2(9),3,5,11-tetraene-10,11-dicarboxylate (4) at 115° in toluene undergoes a novel rearrangement to a benzazocine derivative (5) which undergoes further rearrangement on photolysis; the structure of (5) has been determined by X-ray crystallography.