117661-80-0Relevant articles and documents
PHOTOREACTION OF PHTHALIMIDES POSSESSING AN ORTHO-METHYLPHENYL GROUP IN THEIR N-SIDE CHAIN. SYNTHESIS OF TETRACYCLIC NITROGEN HETEROCYCLES
Machida, Minoru,Nakamura, Mayumi,Oda, Kazuaki,Takechi, Haruko,Ohno, Kosei,et al.
, p. 2683 - 2690 (2007/10/02)
Upon irradiation phthalimides (5 and 8) possesing o-methylphenyl group in their N-side chain gave mainly the tetracyclic ring systems (9 and 10).It was shown that the photocyclization occurs at ε- or ζ-position across the carbons of the benzene ring (B-ring).