Trimellitic anhydride → HCID 21884627, compound

Participants

Reaction Steps

Prepared by the method of Example 15f), from 2-(3-amino-4-(3-thienyl)phenyl)-5-phenylbenzoxazole (61 mg, 0.16 mmol) and 1,2,4-benzenetricarboxylic anhydride (32 mg, 0.16 mmol) the title compound was obtained (66 mg, 75%). 1H NMR (DMSO) δ 8.50(d, 1H), 8.41(m, 2H), 8.30(s, 1H), 8.07(m, 2H), 7.90(m, 2H), 7.75(m, 3H), 7.62(m, 1H), 7.55(m, 1H), 7.50(m, 2H), 7.40(t, 1H), 7.11(dd, 1H). MS 540.7 m/z (M−H)−.

Provenance & Evidence