Trimellitic anhydride → HCID 21884412, compound

Participants

Reaction Steps

Prepared by the method of Example 15f), from 2-(3-amino-6-methoxyphenyl)-5-(4-methylphenyl)benzoxazole (75 mg, 0.23 mmol) and 1,2,4-benzenetricarboxylic anhydride (44 mg, 0.23 mmol) the title compound was obtained (78 mg, 67%). 1H NMR (DMSO) δ 8.43(dd, 1H), 8.33(s, 1H), 8.21(d, 1H), 8.10(d, 1H), 8.04(d, 1H), 7.85(d, 1H), 7.71(m, 2H), 7.63(d, 2H), 7.46(d, 1H), 7.30(d, 2H), 4.03(s, 3H), 2.36(s, 3H). MS 505.1 m/z (M+H)+.

Provenance & Evidence