502764-26-3Relevant articles and documents
Intramolecular [4 + 2] cycloaddition reactions of ketenimines: A new synthesis of benz[b]acridines
Alajarin, Mateo,Vidal, Angel,Ortin, Maria-Mar,Tovar, Fulgencio
, p. 2393 - 2398 (2002)
N-[2-(2-Propenyl)phenyl]-C,C-diphenyl ketenimines undergo a thermally induced intramolecular [4 + 2] cycloaddition to give 5,11,11a,12-tetrahydrobenz[b]acridines, which are converted into the fully aromatic benz[b]acridines by oxidation with Pd/C in refluxing ortho-xylene.