Formaldehyde → HCID 22717973, compound

Participants

Reaction Conditions

Reaction Steps

The monoethyl 2-(4-benzyloxycarbonylaminobutyl)malonate (3.03 g) obtained in the above step (d) was cooled to 0° C. and added with 36% formaldehyde solution (3 ml) and then with diethylamine (3 ml), and then the mixture was stirred at room temperature for 19.5 hours. Ethyl acetate was added to the reaction system to extract the organic substances, and the organic layer was concentrated under reduced pressure. The residue was purified by silica gel column chromatography (150 g, hexane:acetone=5:1) to obtain ethyl 2-(4-benzyloxycarbonylaminobutyl)acrylate (1.69 g, 62%).

Provenance & Evidence