Methyl iodide → 2-[-1-(2,6-Dichloro-4-trifluoromethylphenyl)-3,5-diethyl-1H-pyrazol-4-ylmethyl]-3-methoxymethyl-1,2,3,4-tetrahydroisoquinoline

HRID 619312Notes

Reaction equation

HRID 619312 reaction equation
[Cl:1][C:2]1[CH:7]=[C:6]([C:8]([F:11])([F:10])[F:9])[CH:5]=[C:4]([Cl:12])[C:3]=1[N:13]1[C:17]([CH2:18][CH3:19])=[C:16]([CH2:20][N:21]2[CH:30]([CH2:31][OH:32])[CH2:29][C:28]3[C:23](=[CH:24][CH:25]=[CH:26][CH:27]=3)[CH2:22]2)[C:15]([CH2:33][CH3:34])=[N:14]1.[H-].[Na+].[CH3:37]I>C1COCC1>[Cl:1][C:2]1[CH:7]=[C:6]([C:8]([F:9])([F:11])[F:10])[CH:5]=[C:4]([Cl:12])[C:3]=1[N:13]1[C:17]([CH2:18][CH3:19])=[C:16]([CH2:20][N:21]2[CH:30]([CH2:31][O:32][CH3:37])[CH2:29][C:28]3[C:23](=[CH:24][CH:25]=[CH:26][CH:27]=3)[CH2:22]2)[C:15]([CH2:33][CH3:34])=[N:14]1

Participants

5

Reactant 3

HCID 6328Methyl iodideHCID 24758Sodium hydrideHCID 54199408{2-[1-(2,6-Dichloro-4-trifluoromethylphenyl)-3,5-diethyl-1H-pyrazol-4-ylmethyl]-1,2,3,4-tetrahydroisoquinolin-3-yl}methanol

Product 1

HCID 536986062-[-1-(2,6-Dichloro-4-trifluoromethylphenyl)-3,5-diethyl-1H-pyrazol-4-ylmethyl]-3-methoxymethyl-1,2,3,4-tetrahydroisoquinolineYield 26%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

A solution of 200 mg (0.39 mmol) of the compound of step A in 5 mL of THF was treated with 10 mg (0.42 mmol) of sodium hydride and stirred for 30 minutes at room temperature. Then 0.1 mL (1.6 mmol) of methyl iodide was added and the reaction mixture was stirred at room temperature for 24 hours. The reaction was quenched with water and the product was extracted into ethyl acetate which was dried and evaporated. The crude product was flash chromatographed on silica gel to give the desired product in 26% yield as a colorless oil. 1H-NMR (CDCl3) δ0.90 (3H, t, J=7), 1.20 (3H, t, J=7), 2.39 (2H, q, J=7), 2.65 (2H, q, J=7), 2.88-2.96 (1H, m), 3.16-3.20 (1H, m), 3.32 (3H, s), 3.55-3.78 7H, m), 6.90-7.24 (4H, m), 7.65 (2H, s).

Workup

  1. stirringthe reaction mixture was stirred at room temperature for 24 hours
  2. customThe reaction was quenched with water
  3. extractionthe product was extracted into ethyl acetate which
  4. customwas dried
  5. customevaporated
  6. customchromatographed on silica gel

Sources & evidence

ORD record
ord-148fbe2df32b4db2a703cac593961765
Source dataset
uspto-grants-1999_09
Patent number
US05958948

Reaction notes

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