Isobutylamine → 6Methoxy-2-methyl-benzofuran-3-carboxylic acid isobutyl-amide

Participants

Reaction Steps

This material was prepared from 6-methoxy-2-methylbenzofuran 12a (500 mg, 3.1 mmole) by acylation with oxalyl chloride in the presence of AlCl3, followed by treatment with isobutylamine in a manner as previously described for example 1c to give 585 mg (73%) of an off-white solid. 1H NMR (DMSO-d6) δ7.95 (1H, t, J 5.8 Hz), 7.56 (1H, d, J=8.6 Hz), 7.15(1H, d, J=2.3 Hz), 6.91 (1H, dd, J=8.6, 2.3 Hz), 3.76 (3H, s), 3.07 (2H, m), 2.57 (3H, s), 1.83 (1H, m), 0.88 (6H, d, J=6.8 Hz).

Provenance & Evidence