Potassium Carbonate → 4-Iodobenzophenone

HRID 496301

반응식

HRID 496301 반응식
[IH:1].N[C:3]1[CH:16]=[CH:15][C:6]([C:7]([C:9]2[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=2)=[O:8])=[CH:5][CH:4]=1.C([O-])([O-])=O.[K+].[K+]>CS(C)=O.CCOCC>[I:1][C:3]1[CH:16]=[CH:15][C:6]([C:7]([C:9]2[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=2)=[O:8])=[CH:5][CH:4]=1

참가 물질

6

반응물 3

HCID 11430Potassium CarbonateHCID 143464-AminobenzophenoneHCID 24841Hydrogen iodide

생성물 1

HCID 5696384-Iodobenzophenone

시약·촉매·용매 2

HCID 679Dimethyl Sulfoxide용매2회HCID 3283Diethyl Ether용매

반응 조건

온도
35 °C

실험 절차

A solution of 57% aqueous HI (3.29 ml, 25 mmol) dissolved in DMSO (25 ml) was added dropwise to a solution of 4-aminobenzophenone (0.986 g, 5 mmol) in a mixture of 25 ml of DMSO and KNO2 (0.851 g, 10 mmol) at 35° C. with agitation. The added mixture was stirred at 35° C. for 10 minutes and then was transferred to a solution containing K2CO3 (5 g) in 100 ml ice-water. The reaction mixture was then taken up in ether, and then the ethereal extracts were washed with water and dried over anhydrous magnesium sulfate. Removal of the solvent under reduced pressure gave the crude 4-iodobenzophenone. The crude product was further purified by column chromatography to obtain 4-iodobenzophenone. The yield determined by gas chromatography was 88% (based on decane as an internal standard).

후처리

  1. washthe ethereal extracts were washed with water
  2. dry with materialdried over anhydrous magnesium sulfate
  3. customRemoval of the solvent under reduced pressure
  4. customgave the crude 4-iodobenzophenone
  5. customThe crude product was further purified by column chromatography

출처 및 근거

ORD 기록
ord-7a59f78b3b53467ba4027ed25d36eaab
출처 데이터셋
uspto-grants-2005_09
특허 번호
US06943257B2

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