تفاعل #65682

معادلة التفاعل

hydrochloric acid

potassium carbonate

3,3-dimethylallyl bromide

3-bromothiophenol

→

m-bromophenyl 3-methyl-2-butenyl sulfide

المردود 98.0%

المذيبات

water

dimethylformamide

ظروف التفاعل

المعالجة

1. 1
   درجة الحرارةwhile cooling
2. 2
   استخلاصextracted with ether
3. 3
   أخرىThe yellow-brown oil obtained
4. 4
   أخرىafter evaporation
5. 5
   workup.DISTILLATIONwas distilled in a high vacuum

الإجراء التجريبي

36 g of 3-bromothiophenol were dissolved in 400 ml of dimethylformamide. After the addition of 27 g of finely powdered potassium carbonate and 29 g of 3,3-dimethylallyl bromide, the mixture was stirred at room temperature for 1 hour, diluted with 500 ml of water, acidified with 3N hydrochloric acid while cooling and extracted with ether. The yellow-brown oil obtained after evaporation was distilled in a high vacuum. There were obtained 48 g of m-bromophenyl 3-methyl-2-butenyl sulfide as a colorless liquid, boiling point 85° C./13.3 Pa.

المصدر