Trimellitic anhydride → HCID 44339681, compound

Participants

Reaction Steps

Prepared by the method of Example 15f), from 2-(3-amino-6-methoxyphenyl)-5-(3,4-methylenedioxyphenyl)benzoxazole (50 mg, 0.14 mmol) and 1,2,4-benzenetricarboxylic anhydride (27 mg, 0.14 mmol) the title compound was obtained (72 mg, 92%). 1H NMR (DMSO) δ 13.85(s, 1H), 8.44(dd, 1H), 8.33(s, 1H), 8.21(d, 1H), 8.11(d, 1H), 8.02(d, 1H), 7.83(d, 1H), 7.71(dd, 1H), 7.66(dd, 1H), 7.47(d, 1H), 7.35(d, 1H), 7.22(dd, 1H), 7.03(d, 1H), 6.08(s, 2H), 4.03(s, 3H). MS 535.1 m/z (M+H)+.

Provenance & Evidence