反应 #3282545
相关文献 (1)
openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US05125958
反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: A stirred solution of 0.50 g (0.0013 mole) of 2-chloro-3-[2,4-dichloro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)phenyl]propionic acid (Compound 2), 0.16 g (0.0013 mole) of 4-chloroaniline, 0.17 g (0.0013 mole) of 1-hydroxybenzotriazole hydrate, and 0.18 g (0.0014 mole) of N,N-diisopropylethylamine in approximately 15 mL of tetrahydrofuran was cooled to 0° C. To this cold reaction mixture was added 0.26 g (0.0013 mole) of 1,3-dicyclohexylcarbodiimide. After complete addition, the reaction mixture was allowed to warm to room temperature and was stirred for approximately 18 hours. The reaction mixture was filtered. The filtrate was diluted with carbon tetrachloride and was washed in succession with a 1N hydrochloric acid solution, an aqueous 10% sodium hydroxide solution, water, and an aqueous saturated sodium chloride solution. The organic phase was dried over anhydrous magnesium sulfate, filtered, and the filtrate evaporated under reduced pressure to give 0.28 g of 2-chloro-3-[2,4-dichloro-5-(4-difluoromethyl)-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)phenyl]-N-(4-chlorophenyl)propionamide as an oil, Compound 23 of Table 1. To this cold reaction mixture After complete addition The reaction mixture was filtered The filtrate was diluted with carbon tetrachloride was washed in succession with a 1N hydrochloric acid solution The organic phase was dried over anhydrous magnesium sulfate filtered the filtrate evaporated under reduced pressure
来源 ID: ord-eca4a2c376874be3a44a93c1a537f413