تفاعل #50736

معادلة التفاعل

tetrabromoxylene

fumaronitrile

sodium iodide

sodium hydrogen sulfite

→

2,3-dicyano-naphthalene

المردود 80.0%

المذيبات

dimethylformamide

ظروف التفاعل

المعالجة

1. 1
   درجة الحرارةheated
2. 2
   workup.WAITto stand overnight
3. 3
   ترشيحAfter filtration by suction
4. 4
   أخرىdrying

الإجراء التجريبي

To 0.1 mole of tetrabromoxylene, 0.17 mole of fumaronitrile, 0.66 mole of sodium iodide and 400 ml of anhydrous dimethylformamide were added and heated with stirring at 70° to 80° C. for 7 hours. The reaction solution was added to 800 g of ice water. To the deposited precipitate, about 15 g of sodium hydrogen sulfite was added and allowed to stand overnight. After filtration by suction and drying, white 2,3-dicyano-naphthalene was obtained by recrystallization from chloroform/ethanol in yield of 80%.

المصدر