Ethyl 2-bromopropionate → HCID 14392491, compound

Participants

Reaction Steps

To a stirred solution of 1.25 g (0.0031 mole) of 1-(2,4-dibromo-5-hydroxyphenyl)-4-difluoromethyl-4,5-dihydro-3-methyl-1,2,4-triazol-5(1H)-one in 60 mL of N,N-dimethylformamide was added 0.57 g (0.0033 mole) of ethyl 2-bromopropionate. The resultant mixture was heated at 130° . for two hours, then was cooled. The solvent was evaporated from the mixture under reduced pressure, leaving a solid. This solid was dissolved in diethyl ether, and the solution was washed first with water, then with an aqueous 10% sodium hydroxide solution. The organic solution was dried over anhydrous magnesium sulfate and filtered. The filtrate was evaporated under reduced pressure to yield 1.0 g of ethyl 2-[2,4-dibromo-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)phenoxy]propionate as an oil, Compound 8.

Provenance & Evidence