Vanillin → 3-Methoxy-4-[(5-methyl-2-piperidin-1-yl-1,3-thiazol-4-yl)methoxy]benzaldehyde

HRID 2221557노트

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HRID 2221557 반응식
Cl[CH2:2][C:3]1[N:4]=[C:5]([N:9]2[CH2:14][CH2:13][CH2:12][CH2:11][CH2:10]2)[S:6][C:7]=1[CH3:8].C(=O)([O-])[O-].[K+].[K+].[O:21]=[CH:22][C:23]1[CH:31]=[CH:30][C:28]([OH:29])=[C:25]([O:26][CH3:27])[CH:24]=1.CN(C)C=O>O>[CH3:27][O:26][C:25]1[CH:24]=[C:23]([CH:31]=[CH:30][C:28]=1[O:29][CH2:2][C:3]1[N:4]=[C:5]([N:9]2[CH2:14][CH2:13][CH2:12][CH2:11][CH2:10]2)[S:6][C:7]=1[CH3:8])[CH:22]=[O:21]

참가 물질

6

반응물 4

HCID 1183VanillinHCID 6228DimethylformamideHCID 11430Potassium CarbonateHCID 230765561-(4-Chloromethyl-5-methyl-1,3-thiazol-2-yl)piperidine

생성물 1

HCID 866057113-Methoxy-4-[(5-methyl-2-piperidin-1-yl-1,3-thiazol-4-yl)methoxy]benzaldehyde수율 71.3%

시약·촉매·용매 1

HCID 962Water용매

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온도
80 °C

실험 절차

A mixture of 1-(4-chloromethyl-5-methyl-1,3-thiazol-2-yl)piperidine (0.57 g), potassium carbonate (0.35 g), vanillin (0.38 g) and N,N-dimethylformamide (20 mL) was stirred at 80° C. for 2 hrs. Water was poured into the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate and concentrated. The residue was subjected to silica gel column chromatography to give 3-methoxy-4-[(5-methyl-2-piperidin-1-yl-1,3-thiazol-4-yl)methoxy]benzaldehyde as colorless crystals (0.61 g, yield 70%) from a fraction eluted with ethyl acetate-hexane (1:1, v/v). Recrystallization from ethyl acetate-hexane gave colorless prism crystals. melting point: 80-81° C.

후처리

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe organic layer was washed with saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. concentrationconcentrated

출처 및 근거

ORD 기록
ord-a5d84d085ee441e9bd040d0bd0470a16
출처 데이터셋
uspto-grants-2008_05
특허 번호
US07368578B2

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