تفاعل #2146679

معادلة التفاعل

4-Acetylpyridine

p-toluene sulfonic acid methyl ester

→

4-acetyl-1-methylpyridinium p-toluene sulfonate

المذيبات

ethanol

ظروف التفاعل

المعالجة

1. 1
   درجة الحرارةunder reflux for 5 hours
2. 2
   أخرىThe solvent was removed under vacuum in a rotary evaporator
3. 3
   أخرىAfter separating off the ether phase
4. 4
   أخرىthe product slowly crystallized out
5. 5
   أخرىThe product was dried under vacuum

الإجراء التجريبي

4-Acetylpyridine (30.0 g, 0.25 mol) and p-toluene sulfonic acid methyl ester (55.8 g, 0.30 mol) in 500 ml ethanol were heated under reflux for 5 hours. The solvent was removed under vacuum in a rotary evaporator and the residue was taken up in ether. After separating off the ether phase, the product slowly crystallized out. The product was dried under vacuum.

المصدر