Trimellitic anhydride → HCID 21884624, compound

Participants

Reaction Steps

Prepared by the method of Example 15f), from 2-(3-amino-6-propylaminophenyl)-5-methoxybenzoxazole (74 mg, 0.25 mmol) and 1,2,4-benzenetricarboxylic anhydride (54 mg, 0.28 mmol) the title compound was obtained (68 mg, 58%). 1H NMR (DMSO) δ 8.46(t, 1H), 8.41(dd, 1H), 8.22(s, 1H), 8.07(m, 2H), 7.64(d, 1H), 7.45(dd, 1H), 7.37(d, 1H), 7.00(m, 2H), 3.84(s, 3H), 3.34(m, 2H), 1.75(m, 2H), 1.06(t, 3H). MS 470.1 m/z (M−H)−.

Provenance & Evidence