1,2-Dibromoethane → HCID 14150224, compound

Participants

Reaction Steps

In a manner similar to the procedure described in Example B, 31.0 grams (119.0 mmol) of ethyl 3-[(4-chloro-2-fluorophenyl)amino]-3-oxopropanoate, 41.4 grams (300.0 mmol) of anhydrous potassium carbonate, 100 milliliters anhydrous dimethylformamide and 10.4 milliliters (120.0 mmol) of 1,2-dibromoethane were reacted for a period of 3 days to give 20.6 grams (72.0 mmol) of ethyl 1-(4-chloro-2-fluorophenylaminocarbonyl)cyclopropanecarboxylate as a colorless solid having a melting point of 94.0° C.-95.5° C. The total yield was 61 percent. NMR analysis of the product indicated the following:

Provenance & Evidence