Trimellitic anhydride → HCID 21884401, compound

Participants

Reaction Steps

Prepared by the method of Example 15f), from 2-(3-amino-6-methoxyphenyl)-5-(3-methoxyphenyl)benzoxazole (50 mg, 0.14 mmol) and 1,2,4-benzenetricarboxylic anhydride (28 mg, 0.14 mmol) the title compound was obtained (52 mg, 71%). 1H NMR (DMSO) δ 8.43(d, 1H), 8.33(s, 1H), 8.22(d, 1H), 8.10(m, 2H), 7.87(d, 1H), 7.74(m, 2H), 7.48(d, 1H), 7.41(t, 1H), 7.30(m, 2H), 6.96(dd, 1H), 4.04(s, 3H), 3.85(s, 3H). MS 521.3 m/z (M+H)+.

Provenance & Evidence