2-Benzofurancarboxaldehyde → HCID 9927809, compound

Participants

Reaction Steps

A mixture of 0.1 M solution of (4-amino-2-methylphenyl)-carbamic acid propyl ester (0.35 mL, 0.035 mmol) and 0.1 M solution of benzofuran-2-carbaldehyde (0.35 mL) in tetrahydrofuran (THF) was kept at 55° C. for 60 minutes. Volatiles were removed in vacuo. To the obtained residue 0.2 M sodium cyanoborohydride (NaBH3CN) (0.5 mL) in methanol and acetic acid (0.03 mL) were added. After sonication for 60 minutes the reaction mixture was evaporated in vacuo and the title compound was separated by preparative LC/MS to give 5.1 mg of colorless solid. Yield 43%. LC/MS (m/z) 339.2 ([M+H]+); RT=2.92, (UV, ELSD) 94%, 94%.

Provenance & Evidence