Trimellitic anhydride → HCID 21884363, compound

Participants

Reaction Steps

Prepared by the method of Example 15f), from 2-(3-amino-6-methoxyphenyl)-5-(2-benzothiophenyl)benzoxazole (140 mg, 0.38 mmol) and 1,2,4-benzenetricarboxylic anhydride (72 mg, 0.38 mmol) the title compound was obtained (100 mg, 22%). 1H NMR (DMSO) δ 13.79(s, 1H), 8.44(dd, 1H), 8.34(s, 1H), 8.22(m, 2H), 8.11(d, 1H), 8.01(d, 1H), 7.97(s, 1H), 7.92(d, 1H), 7.87(m, 2H), 7.73(dd, 1H), 7.48(d, 1H), 7.40(m, 2H), 4.04(s, 3H). MS 547.0 m/z (M+H)+.

Provenance & Evidence