Synthesis and properties of some 7H,9H-quinazolino-[3,2-b]benz[d,e]isoquinolin-7-one derivatives

Add time:07/27/2019    Source:sciencedirect.com

A number of 7H,9H-quinazolino[3,2-b]benz[d,e]isoquinolin-7-one derivatives containing chlorine atoms, methoxy, nitro or amino groups at the 11 or 12 position of the molecule skeleton have been synthesised.The structure of the dyes obtained has been confirmed by elemental analysis, as well as by i.r. and n.m.r. spectroscopy. Electronic spectra in the visible range have also been recorded and the effect of the character of the substituents on the colour has been analysed.

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