Trimellitic anhydride → HCID 21884429, compound

Participants

Reaction Steps

Prepared by the method of Example 1b), from 2-(3-amino-4-methoxyphenyl)-5-bromobenzoxazole (166 mg, 0.5 mmol) and 1,2,4-benzenetricarboxylic anhydride (100 mg, 0.5 mmol) the title compound was obtained (238 mg, 93%). 1H NMR (DMSO) δ 8.44(dd, 1H), 8.32(m, 3H), 8.10(d, 1H), 8.02(d, 1H), 7.77(d, 1H), 7.57(dd, 1H), 7.48(d, 1H). MS 490.9 m/z (M−H)−.

Provenance & Evidence