N-Cyanoacetylethylcarbamate → (E,E)-[2-Cyano-5-(3,4-dihydroxyphenyl)-penta-2,4-dienoyl]carbamic acid ethyl ester

Participants

Reaction Steps

The compound was prepared as described in Example 3 by adding 3,4-dihydroxycinnamaldehyde (32 mg, 0.2 mmol) to N-cyanoacetylurethane (32 mg, 0.2 mmol). After refluxing for 1 h and recrystallization from ethanol-water an orange solid was obtained (54 mg, 90%). The product gave the following analytical data:

Provenance & Evidence