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Triethylamine → {2-[3,5-Diethyl-1-(2,4,6-trimethylphenyl)-1H-pyrazol-4-ylmethyl]-1,2,3,4-tetrahydroisoquinolin-3-yl}methanol

HRID 725278
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HRID 725278 반응식
[CH2:1]([C:3]1[C:7]([CH2:8]O)=[C:6]([CH2:10][CH3:11])[N:5]([C:12]2[C:17]([CH3:18])=[CH:16][C:15]([CH3:19])=[CH:14][C:13]=2[CH3:20])[N:4]=1)[CH3:2].C(N(CC)CC)C.CS(Cl)(=O)=O.[OH:33][CH2:34][CH:35]1[CH2:44][C:43]2[C:38](=[CH:39][CH:40]=[CH:41][CH:42]=2)[CH2:37][NH:36]1>C(Cl)Cl.C(#N)C.CN(C)C=O.O>[CH2:1]([C:3]1[C:7]([CH2:8][N:36]2[CH:35]([CH2:34][OH:33])[CH2:44][C:43]3[C:38](=[CH:39][CH:40]=[CH:41][CH:42]=3)[CH2:37]2)=[C:6]([CH2:10][CH3:11])[N:5]([C:12]2[C:17]([CH3:18])=[CH:16][C:15]([CH3:19])=[CH:14][C:13]=2[CH3:20])[N:4]=1)[CH3:2]
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참가 물질

8

반응물 4

HCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 3752277(1,2,3,4-Tetrahydro-isoquinolin-3-yl)-methanolHCID 218373233,5-Diethyl-1-(2,4,6-trimethylphenyl)pyrazole-4-methanol

생성물 1

HCID 67553028{2-[3,5-Diethyl-1-(2,4,6-trimethylphenyl)-1H-pyrazol-4-ylmethyl]-1,2,3,4-tetrahydroisoquinolin-3-yl}methanol수율 44.1%

시약·촉매·용매

3
HCID 962Water용매HCID 6344Dichloromethane용매HCID 21891449acetonitrile N,N-dimethylformamide용매

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온도
0 °C

실험 절차

To a solution of 272 mg (1.0 mmol) of 3,5-diethyl-1-(2,4,6-trimethylphenyl)pyrazole-4-methanol in 5 mL of methylene chloride cooled to 0° C. under dry nitrogen in a 25 mL 3-neck flask, was added to 0.2 mL (2.5 mmol) of triethylamine and 0.092 mL (2.0 mmol) of methanesulfonyl chloride. This mixture was stirred for 15 minutes at 0° C. and then 0.648 g (4.0 mmol) of (+)-3-hydroxymethyl-1,2,3,4-tetrahydroisoquinoline in 1 mL of 50:50 dimethylformamide acetonitrile was added. The reaction mixture was heated at reflux overnight whereupon no starting material was seen by TLC. The cooled reaction mixture was diluted with water and the product was extracted with ethyl acetate. After drying (brine wash, magnesium sulfate) and evaporation, the crude product was chromatographed on silica gel, eluting with 10:1 and 5:1 hexane/ethyl acetate to give 184 mg (44%) of the desired product. 1H-NMR (CDCl3):0.80 (3H, t, J=7), 1.18 (3H, t, J=7), 1.92 (6H, s), 2.21 (2H, q, J=7), 2.28 (3H, s), 2.55 (2H, q, J=7), 2.97 (2H, d of d, J=7), 3.25 (1H, m), 3.50-3.66 (5H, m), 3.80 (2H, d, J=12), 6.82-7.16 (6H, m).

후처리

  1. temperatureThe reaction mixture was heated
  2. temperatureat reflux overnight whereupon no starting material
  3. customThe cooled reaction mixture
  4. extractionthe product was extracted with ethyl acetate
  5. customAfter drying
  6. wash(brine wash, magnesium sulfate) and evaporation
  7. customthe crude product was chromatographed on silica gel
  8. washeluting with 10:1 and 5:1 hexane/ethyl acetate

출처 및 근거

ORD 기록
ord-3c44f0bc0c8e4fa1915a69eb0bf5a4ce
출처 데이터셋
uspto-grants-1998_01
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US05705646

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