3-Methoxyphenol → Dimethyl-(3-methoxyphenoxy)malonate

HRID 8605

반응식

HRID 8605 반응식
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([OH:9])[CH:6]=[CH:7][CH:8]=1.C([O-])([O-])=O.[K+].[K+].[CH3:16][O:17][C:18](=[O:25])[CH:19](Cl)[C:20]([O:22][CH3:23])=[O:21]>CC(C)=O>[CH3:16][O:17][C:18](=[O:25])[CH:19]([O:9][C:5]1[CH:6]=[CH:7][CH:8]=[C:3]([O:2][CH3:1])[CH:4]=1)[C:20]([O:22][CH3:23])=[O:21]

참가 물질

5

반응물 3

HCID 90073-MethoxyphenolHCID 11430Potassium CarbonateHCID 120070Dimethyl chloromalonate

생성물 1

HCID 21803851Dimethyl-(3-methoxyphenoxy)malonate

시약·촉매·용매 1

HCID 180Acetone용매2회

반응 조건

온도
40 °C

실험 절차

To a solution of 3-methoxyphenol (115 g) in acetone (1000 ml) was added K2CO3 (115 g). The suspension was stirred at 40° C. for 15 min. A solution of dimethylchloromalonate (133 ml) in acetone was added over a period of 45 min. The resulting brown suspension was stirred overnight at 70° C. Finally, the solvent was removed under reduced pressure and the residue was taken up in water (1000 ml) and extracted twice with DCM (500 ml). The combined organic layers were washed with water (500 ml), dried over Na2SO4, and evaporated to give crude dimethyl-(3-methoxyphenoxy)malonate (230 g) as an orange oil. The product was not purified any further.

후처리

  1. stirringThe resulting brown suspension was stirred overnight at 70° C
  2. customFinally, the solvent was removed under reduced pressure
  3. extractionextracted twice with DCM (500 ml)
  4. washThe combined organic layers were washed with water (500 ml)
  5. dry with materialdried over Na2SO4
  6. customevaporated

출처 및 근거

ORD 기록
ord-e984f0b46860489fa5ffafd050372951
출처 데이터셋
uspto-grants-2006_08
특허 번호
US07091201B2

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