Triethylamine → Methyl 3-{[(2-furylmethyl)(methyl)amino]methyl}-5-methylbenzoate

HRID 348915

Reaction equation

HRID 348915 reaction equation
O[CH2:2][C:3]1[CH:4]=[C:5]([CH:10]=[C:11]([CH3:13])[CH:12]=1)[C:6]([O:8][CH3:9])=[O:7].C(N(CC)CC)C.CS(Cl)(=O)=O.[CH3:26][NH:27][CH2:28][C:29]1[O:33][CH:32]=[CH:31][CH:30]=1>C(Cl)Cl>[O:33]1[CH:32]=[CH:31][CH:30]=[C:29]1[CH2:28][N:27]([CH2:2][C:3]1[CH:4]=[C:5]([CH:10]=[C:11]([CH3:13])[CH:12]=1)[C:6]([O:8][CH3:9])=[O:7])[CH3:26]

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 78492N-MethylfurfurylamineHCID 21086184Methyl 3-(hydroxymethyl)-5-methylbenzoate

Product 1

HCID 21086145Methyl 3-{[(2-furylmethyl)(methyl)amino]methyl}-5-methylbenzoate

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

To an ice-cold, stirred solution of methyl 3-(hydroxymethyl)-5-methylbenzoate (200 mg, 1.1 mmol) in methylene chloride (2.2 mL) is added triethylamine (0.304 mL, 2.2 mmol) followed by methanesulfonyl chloride (0.116 mL, 1.5 mmol). The reaction mixture is stirred for 15 min and filtered. N-Methylfurfurylamine (367 mg, 3.3 mmol) is added to the filtrate and the reaction mixture is stirred at room temperature for 5 h. The reaction mixture is diluted with methylene chloride (10 mL), washed with 1 N hydrochloric acid, and saturated sodium bicarbonate, dried (magnesium sulfate), filtered, and concentrated under reduced pressure. Purification by flash column chromatography (silica, 50% ethyl acetate/hexanes) provided the title compound. 1H NMR (300 MHz, CDCl3) δ 7.76 (d, J=11 Hz, 2H), 3.79 (d, J=6 Hz, 2H), 6.32 (d, J=2 Hz, 1H), 6.21 (d, J=3 Hz, 1H), 3.90 (s, 3H), 3.59 (s, 3H), 3.53 (s, 2H), 2.39 (s, 3H), 2.23 (s, 3H).

Workup

  1. filtrationfiltered
  2. stirringthe reaction mixture is stirred at room temperature for 5 h
  3. washwashed with 1 N hydrochloric acid, and saturated sodium bicarbonate
  4. dry with materialdried (magnesium sulfate)
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure
  7. customPurification by flash column chromatography (silica, 50% ethyl acetate/hexanes)

Sources & evidence

ORD record
ord-71253c5c484b44be9bdbbe7e4a8c4731
Source dataset
uspto-grants-2007_02
Patent number
US07176242B2

Linked notes

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