2-Benzofurancarboxaldehyde → 3-[(Benzofuran-2-ylmethyl)-amino]-phthalic acid dimethyl ester

Participants

Reaction Steps

Benzofuran-2-carbaldehyde (1.17 ml, 8 mmol) was treated in the same manner as described above for the synthesis of 3-pentylamino-phthalic acid dimethyl ester. The residue (oil) was purified by chromatography (SiO2, 50% methylene chloride/hexane) to give 1.12 g (83%) of product as a yellow oil: 1H NMR (CDCl3) δ 7.50-7.43 (m, 2H), 7.33-7.16 (m, 3H), 6.88-6.84 (m, 2H), 6.58 (s, 1H), 4.54 (d, J=6.1 Hz, 2H), 3.86 (s, 3H), 3.85 (s, 3H).

Provenance & Evidence