반응 #95250

반응 방정식

2-(5-carboxypentyl)-2-cyclopentenone

p-toluenesulfonic acid

→

2-(5-carbethoxypentyl)-2-cyclopentenone

용매

ethanol

반응 조건

후처리

1. 1
   기타The solvent is evaporated
2. 2
   workup.DISSOLUTIONthe residue is dissolved in ether
3. 3
   세척The organic phase is washed with water, sodium bicarbonate solution, and saturated saline solution
4. 4
   건조dried (MgSO4)
5. 5
   기타evaporated
6. 6
   기타to give 1.371 g

실험 절차

A solution of 1.309 g. (0.00668 mole) of 2-(5-carboxypentyl)-2-cyclopentenone (Example 52) and 90 mg. of p-toluenesulfonic acid in 150 ml. of ethanol is refluxed for 18 hours. The solvent is evaporated and the residue is dissolved in ether. The organic phase is washed with water, sodium bicarbonate solution, and saturated saline solution, dried (MgSO4), and evaporated to give 1.371 g. of a light yellow oil.

출처