Abstract
IF perylene is boiled with maleic anhydride and nitrobenzene, 1 : 12-benzperylene. 1' : 2' -dicarboxylic acid anhydride is formed1. Under the same conditions meso-anthra-dianthrene2 (I) yields quantitatively the anhydride (II), as dark red needles decomposing at 430° (uncorr.) (found : C, 86·48 ; H, 3·01. C34 H12 O3 requires: C, 87·17; H, 2·58 per cent), and meso-naphtha-dianthrene2 (III) reacts twice to form the dianhydride (IV), as dark brown crystals, carbonizing at high temperature.
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