Trimellitic anhydride → HCID 21884595, compound

Participants

Reaction Steps

Prepared by the method of Example 1b), from 2-(5-amino-2-ethoxyphenyl)-5-phenylbenzoxazole (157 mg, 0.44 mmol) and 1,2,4-benzenetricarboxylic anhydride (84 mg, 0.44 mmol) the title compound was obtained (133 mg, 60%). 1H NMR (DMSO) δ 8.50(dd, 1H), 8.40(s, 1H), 8.25(d, 1H), 8.17(m, 2H), 7.93(d, 1H), 7.80(m, 4H), 7.50(m, 4H), 4.41(q, 2H), 1.52(t, 3H). MS 505 m/z (M+H)+.

Provenance & Evidence