반응 #2852

반응 방정식

sodium sulfite

salicylaldehyde

Cl2

ICl

→

title compound

2-Hydroxy-5-iodo-benzaldehyde

용매

CH2Cl2

CH2Cl2

반응 조건

후처리

1. 1
   기타The layers are separated
2. 2
   세척The organic layer is washed with water
3. 3
   건조The organic layer is dried over MgSO4
4. 4
   여과filtered
5. 5
   농축concentrated
6. 6
   기타The resulting crude material is recrystallized from cyclohexane

실험 절차

To a solution of salicylaldehyde (10 g, 82 mmol) in 50 mL of CH2 Cl2 is added 22 mL of a 1M ICl solution in CH2Cl2. The solution is stirred for 14 h. After this time, a saturated solution of sodium sulfite is added until the color is discharged. The solution is diluted with CH2Cl2. The layers are separated. The organic layer is washed with water. The organic layer is dried over MgSO4, filtered and concentrated. The resulting crude material is recrystallized from cyclohexane to give the title compound (7.2 g, 32 mmol) as white solid.

출처