Réaction #7009

Équation de réaction

Diisopropylethylamine

1-pyrimidin-2-yl-piperidine-4-carboxylic acid

1-hydroxybenzotriazole hydrate

3-dimethylaminopropyl-3-ethylcarbodiimide hydrochloride

→

title compound

Rendement 46.4%

1-Pyrimidin-2-yl-piperidine-4-carboxylic acid N′-(3-methyl-butyryl)-hydrazide

Rendement 46.4%

Solvants

dichloromethane

Conditions de réaction

Traitement

1. 1
   AutreThe solvent was evaporated
2. 2
   Autrethe residue was triturated with water

Mode opératoire

The residue was added to a mixture of 1-pyrimidin-2-yl-piperidine-4-carboxylic acid (6.6 g, 31.7 mmol) (see reference U.S. Pat. No. 4,826,843), 1-hydroxybenzotriazole hydrate (4.28 g, 31.7 mmol) and 1-(3-dimethylaminopropyl-3-ethylcarbodiimide hydrochloride (6.09 g, 31.7 mmol) in dichloromethane (50 ml). Diisopropylethylamine (17 ml, 95 mmol) was added and the mixture was stirred for 3 days. The solvent was evaporated and the residue was triturated with water and then with diethyl ether to give the title compound as a white solid (4.49 g).

Source