Preparation of a 3-phenyl-4(3H)-isoquinolinone and its transformation in 12(11H)-benzo[c]phenanthridinone derivatives. Crystal structure determinations

Article abstract of DOI:10.1016/S0040-4020(01)85708-2

Trans- and cis-5-(p-toluenesulfonyl)-5,6,13,14-tetrahydro-12(11H)-benzo[c]phanant hridinones have been prepared with excellent yield involving the initial formation of 3-phenyl-2-(p-toluenesulfonyl)-1,2-dihydro-4(3H)-isoquinolinone, as the key intermediat