Reacción #833565

Ecuación de reacción

sodium chloride

1-(but-2-ynyl)-2-chloro-6-(quinolin-2-ylmethyl)-5,6-dihydro-1H-imidazo[4,5-d]-pyridazine-4,7-dione

potassium carbonate

bromoacetonitrile

→

1-(but-2-ynyl)-2-chloro-5-cyanomethyl-6-(quinolin-2-ylmethyl)-5,6-dihydro-1H-imidazo[4,5-d]pyridazine-4,7-dione

Disolventes

dimethylformamide

Condiciones de reacción

Tratamiento posterior

1. 1
   Extracciónis extracted three times with ethyl acetate
2. 2
   Secadothe combined organic phases are dried over sodium sulphate
3. 3
   Otrothe solvent is removed
4. 4
   OtroThe residue is purified over silica gel (cyclohexane/ethyl acetate 1:1)

Procedimiento

0.20 g 1-(but-2-ynyl)-2-chloro-6-(quinolin-2-ylmethyl)-5,6-dihydro-1H-imidazo[4,5-d]-pyridazine-4,7-dione and 0.25 g potassium carbonate are placed in 4 ml of dimethylformamide. Then 53 μl of bromoacetonitrile are added and the mixture is stirred for 2 h at 40° C. After the addition of aqueous saturated sodium chloride solution the mixture is extracted three times with ethyl acetate, the combined organic phases are dried over sodium sulphate, and then the solvent is removed. The residue is purified over silica gel (cyclohexane/ethyl acetate 1:1).

Fuente