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Potassium Carbonate → 2-hydroxy-6-((5-(1-isopropyl-1H-pyrazol-5-yl)-3,6-dihydro-2H-pyran-4-yl)methoxy)benzaldehyde

HRID 1484791
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HRID 1484791 반응식
Br[CH2:2][C:3]1[CH2:8][CH2:7][O:6][CH2:5][C:4]=1[C:9]1[N:13]([CH:14]([CH3:16])[CH3:15])[N:12]=[CH:11][CH:10]=1.[OH:17][C:18]1[CH:25]=[CH:24][CH:23]=[C:22]([OH:26])[C:19]=1[CH:20]=[O:21].C([O-])([O-])=O.[K+].[K+]>CN(C=O)C.O.CCOC(C)=O>[OH:17][C:18]1[CH:25]=[CH:24][CH:23]=[C:22]([O:26][CH2:2][C:3]2[CH2:8][CH2:7][O:6][CH2:5][C:4]=2[C:9]2[N:13]([CH:14]([CH3:16])[CH3:15])[N:12]=[CH:11][CH:10]=2)[C:19]=1[CH:20]=[O:21]
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참가 물질

7

반응물 3

HCID 11430Potassium CarbonateHCID 102858012,6-DihydroxybenzaldehydeHCID 904080795-(4-(bromomethyl)-5,6-dihydro-2H-pyran-3-yl)-1-isopropyl-1H-pyrazole

생성물 1

HCID 862954162-hydroxy-6-((5-(1-isopropyl-1H-pyrazol-5-yl)-3,6-dihydro-2H-pyran-4-yl)methoxy)benzaldehyde수율 69.2%

시약·촉매·용매 3

HCID 962Water용매
HCID 6228
Dimethylformamide
용매
HCID 8857Ethyl Acetate용매

실험 절차

To a solution of 5-(4-(bromomethyl)-5,6-dihydro-2H-pyran-3-yl)-1-isopropyl-1H-pyrazole (110 mg, 0.38 mmol) and 2,6-dihydroxybenzaldehyde (100 mg, 0.76 mmol) in DMF (6 mL) was added K2CO3 (110 mg, 0.76 mmol). After stirred at room temperature for 1 h, it was diluted with water and EtOAc, organic layer was separated, and the aqueous layer was extracted with EtOAc. Organic layer was combined, washed with brine, dried and concentrated to give crude product, which was purified by column (Hexanes/EtOAc=1:1) to give 2-hydroxy-6-((5-(1-isopropyl-1H-pyrazol-5-yl)-3,6-dihydro-2H-pyran-4-yl)methoxy)benzaldehyde (90 mg). 1H NMR (400 MHz, CDCl3) 8 (ppm) 11.89 (s, 1H), 10.33 (s, 1H), 7.53 (d, J=1.6 Hz, 1H), 7.33 (t, J=8.8 Hz, 1H), 6.51 (d, J=8.8 Hz, 1H), 6.16 (d, J=8.0 Hz, 1H), 6.08 (d, J=2.0 Hz, 1H), 4.40 (dd, J=12.8, 6.4 Hz, 1H), 4.35 (s, 2H), 4.18 (s, 2H), 3.97 (t, J=5.2 Hz, 2H), 2.44 (s, 2H), 1.40 (d, J=6.4 Hz, 6H); MS (ESD m/z 343.3 [M+H]+.

후처리

  1. customwas separated
  2. extractionthe aqueous layer was extracted with EtOAc
  3. washwashed with brine
  4. customdried
  5. concentrationconcentrated
  6. customto give crude product, which
  7. customwas purified by column (Hexanes/EtOAc=1:1)

출처 및 근거

ORD 기록
ord-625d5fa57e014914ab90e5802b79a39e
출처 데이터셋
uspto-grants-2016_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09422279B2

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