Trimellitic anhydride → HCID 21884556, compound

Participants

Reaction Steps

Prepared by the method of Example 1b), from 2-(3-amino-4-methoxyphenyl)-5-(3-methyl-4-chlorophenyl)benzoxazole (79 mg, 0.22 mmol) and 1,2,4-benzenetricarboxylic anhydride (42 mg, 0.22 mmol) the title compound was obtained (22 mg, 19%). 1H NMR (DMSO) δ 8.55(dd, 1H), 8.44(m, 3H), 8.22(d, 1H), 8.14(m, 1H), 7.90(m, 3H), 7.65(m, 3H), 4.00(s, 3H), 2.45(s, 3H). MS 527 m/z (M+H)+.

Provenance & Evidence