Trimellitic anhydride → HCID 21884374, compound

Participants

Reaction Steps

Prepared by the method of Example 15f), from 2-(3-amino-6-methoxyphenyl)-5-(2-benzofuranyl)benzoxazole (105 mg, 0.29 mmol) and 1,2,4-benzenetricarboxylic anhydride (57 mg, 0.29 mmol) the title compound was obtained (98 mg, 63%). 1H NMR (DMSO) δ 13.74(s, 1H), 8.43(dd, 1H), 8.32(d, 2H), 8.21(d, 1H), 8.10(d, 1H), 8.02(dd, 1H), 7.92(d, 1H), 7.72(dd, 1H), 7.67(t, 2H), 7.54(s, 1H), 7.47(d, 1H), 7.31(m, 2H), 4.03(s, 3H). MS 531.2 m/z (M+H)+.

Provenance & Evidence