Реакция #1906456

Уравнение реакции

2-[2-(3-chloro-pyridin-2-yl)-5-trifluoromethyl-2H-pyrazol-3-yl]-8-methyl-4-oxo-4H-benzo[d][1,3]oxazine-6-carbonitrile

bicyclopropyl-1-ylamine hydrochloride

triethylamine

→

title compound

Выход 57.4%

2-(3-Chloro-pyridin-2-yl)-5-trifluoromethyl-2H-pyrazole-3-carboxylic acid [2-(bicyclopropyl-1-ylcarbamoyl)-4-cyano-6-methyl-phenyl]-amide

Выход 57.4%

Растворители

tetrahydrofuran

Условия реакции

Обработка

1. 1
   ТемператураThe solution is cooled down to ambient temperature
2. 2
   Другоеthe solvent is evaporated
3. 3
   ДругоеThen the mixture is triturated in 100 ml water
4. 4
   Промывкаthe crystals are washed with water and ether

Методика

To a solution of 2-[2-(3-chloro-pyridin-2-yl)-5-trifluoromethyl-2H-pyrazol-3-yl]-8-methyl-4-oxo-4H-benzo[d][1,3]oxazine-6-carbonitrile (1.2 g, 2,8 mmol) (prepared according to WO 04/067528) in tetrahydrofuran (40 ml), is added bicyclopropyl-1-ylamine hydrochloride (0.6 g, 4.2 mmol) and 1.2 ml (8.4 mmol) triethylamine, and the solution is heated at a temperature of 60° C. for 8 h. The solution is cooled down to ambient temperature and the solvent is evaporated. Then the mixture is triturated in 100 ml water and the crystals are washed with water and ether to afford 0.85 g of the title compound. The mother liquor is evaporated and a second crop of crystals is obtained by crystallisation in diisopropylether to afford 0.46 g of the title compound (F: 270-272° C.).

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