反応 #607844

反応方程式

4-aminophenol

1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxylic acid

EDCI

HOAT

→

title compound

収率 52.6%

N-(4-hydroxyphenyl)-1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxamide

収率 52.6%

溶媒

EtOAc

water

DCM

反応条件

後処理

1. 1
   温度cooled to rt
2. 2
   workup.STIRRINGThe mixture was stirred at rt for 1 hour
3. 3
   ろ過filtered

実験手順

To a mixture of 4-aminophenol (1.09 g, 10 mmol) and 1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxylic acid (2.37 g, 10.2 mmol) in DCM (30 mL) was added EDCI (2.3 g, 12 mmol) and HOAT (0.27 g, 2 mmol). The mixture was stirred at 46° C. for 4 hours, then cooled to rt and diluted with EtOAc (10 mL) and water (10 mL). The mixture was stirred at rt for 1 hour, then filtered to give the title compound as a white solid (1.7 g, 52.5%).

出典