Trimellitic acid → 2-[2-Chloro-5-(5-phenylbenzoxazol-2-yl)phenyl]-1,3-dioxo-2,3-dihydro-1H-isoindole-5-carboxylic acid

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Reaction Steps

Prepared by the method of Example 15e), from 2-(3-amino-4-chlorophenyl)-5-phenylbenzoxazole (43 mg, 0.13 mmol) and 1,2,4-benzenetricarboxylic acid (26 mg, 0.13 mmol) the title compound was obtained (10 mg, 15%). 1H NMR (DMSO) δ 8.58(d, 1H), 8.48(dd, 1H), 8.38(m, 2H), 8.17(d, 1H), 8.08(d, 1H), 7.99(d, 1H), 7.88(d, 1H), 7.76(m, 3H), 7.50(m, 2H), 7.39(t, 1H). MS 492.8 m/z (M−H)−.

Provenance & Evidence