Toluene → 4-Chloro-2,2-diphenyl-4-pentenenitrile

Participants

Reaction Conditions

Reaction Steps

A 40.3 g. portion of sodium amide was suspended in 400 ml. of dry toluene at 70° C. and 199.6 g. of diphenylacetonitrile, dissolved in 600 ml. of hot dry toluene, was added dropwise. The mixture was stirred at 70°-100° C. for 4 hours, and an additional 500 ml. of dry toluene and 100 ml. of dimethylformamide were added. The mixture was stirred for 27 hours more. The slurry was cooled to 10° C., and 114.6 g. of 2,3-dichloropropene was added. The mixture was warmed to ambient temperature and stirred for 40 hours, and was then stirred at 90°100° C. for one hour. The mixture was then cooled to ambient temperature, diluted with a large amount of diethyl ether, washed with water and dried over magnesium sulfate. The solution was evaporated to give 265 g. of crude liquid product.

Provenance & Evidence