Synthesis and properties of some 9,10-dihydro-7H-imidazo[1,2-b]benz[d,e]isoquinolin-7-one derivatives

The various routes of synthesis of some methoxy- and acetylamino-9,10-dihydro-7H-imidazo1,2-b]benzd,e]isoquinolin-7-one derivatives are described. The mixtures of geometric isomers obtained were separated and the chemical constitution of individual isomers was confirmed by the u.v., i.r., n.m.r. and mass spectroscopy. The fluorescence properties of individual isomers were also determined.