Reacción #69882

Ecuación de reacción

(1R)-trans-3-[(1EZ)-2-cyano-2-(ethylthio)ethenyl]-2,2-dimethylcyclopropanecarboxylic acid

thionyl chloride

→

(1R)-trans-3-[(1EZ)-2-cyano-2-(ethylthio)ethenyl]-2,2-dimethylcyclopropanecarboxylic acid chloride

Rendimiento 98.9%

Disolventes

toluene

Condiciones de reacción

Tratamiento posterior

1. 1
   ConcentraciónThe reaction mixture was concentrated under reduced pressure

Procedimiento

To methyl=(1R)-trans-3-[(1EZ)-2-cyano-2-(ethylthio)ethenyl]-2,2-dimethylcyclopropanecarboxylic acid (8.98 g, 39.9 mmol), toluene (25 mL) was added and then thionyl chloride (5.0 g, 42.0 mmol) was added. Furthermore, N,N-dimethylformamide (50 mg) was added, followed by stirring at an inner temperature of 60 to 70° C. for 4 hours. The reaction mixture was concentrated under reduced pressure to obtain 9.62 g of (1R)-trans-3-[(1EZ)-2-cyano-2-(ethylthio)ethenyl]-2,2-dimethylcyclopropanecarboxylic acid chloride represented by the following formula:

Fuente