Ethyl Acetate → (E)-N-(3-chloro-2-propenyl)-N-ethyl-3-[3-(3-thienyl)benzyloxy]benzylamine

HRID 1756316Notes

Reaction equation

HRID 1756316 reaction equation
[Cl:1]/[CH:2]=[CH:3]/[CH2:4][N:5]([CH2:8][C:9]1[CH:14]=[CH:13][CH:12]=[C:11]([OH:15])[CH:10]=1)[CH2:6][CH3:7].[H-].[Na+].S(O[CH2:23][C:24]1[CH:29]=[CH:28][CH:27]=[C:26]([C:30]2[CH:34]=[CH:33][S:32][CH:31]=2)[CH:25]=1)(=O)(=O)C.C(OCC)(=O)C>O1CCCC1.CN(C)C=O>[Cl:1]/[CH:2]=[CH:3]/[CH2:4][N:5]([CH2:8][C:9]1[CH:14]=[CH:13][CH:12]=[C:11]([O:15][CH2:23][C:24]2[CH:29]=[CH:28][CH:27]=[C:26]([C:30]3[CH:34]=[CH:33][S:32][CH:31]=3)[CH:25]=2)[CH:10]=1)[CH2:6][CH3:7]

Participants

7

Reactant 4

HCID 8857Ethyl AcetateHCID 24758Sodium hydrideHCID 10376384(E)-N-(3-Chloro-2-propenyl)-N-ethyl-3-hydroxybenzylamineHCID 199174863-(3-Thienyl)benzyl mesylate

Product 1

HCID 19917481(E)-N-(3-chloro-2-propenyl)-N-ethyl-3-[3-(3-thienyl)benzyloxy]benzylamineYield 93%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8028TetrahydrofuranSolvent

Procedure

To a solution of 280 mg (1.24 mmol) of (E)-N-(3-chloro-2-propenyl)-N-ethyl-3-hydroxybenzylamine in 2.5 ml of tetrahydrofuran was added 74.4 mg (1.86 mmol) of 60% oily sodium hydride under ice cooling. The mixture was stirred for 20 minutes at room temperature, ice-cooled, treated with a solution of 333 mg (1.24 mmol) of 3-(3-thienyl)benzyl mesylate in 2.5 ml of dimethylformamide, and stirred for 1.5 hours at room temperature. The reaction mixture was poured into 40 ml of ethyl acetate, washed with 20 ml×2 of water and 20 ml of saturated sodium chloride aqueous solution, dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The residue was subjected to silica gel chromatography (n-hexane→n-hexane/ethyl acetate=9/1). The desired fractions were put together and concentrated under reduced pressure to obtain 460 mg (yield: 93%) of the above identified compound as an oil.

Workup

  1. temperatureice-cooled
  2. stirringstirred for 1.5 hours at room temperature
  3. washwashed with 20 ml×2 of water and 20 ml of saturated sodium chloride aqueous solution
  4. dry with materialdried over anhydrous magnesium sulfate
  5. concentrationconcentrated under reduced pressure
  6. concentrationconcentrated under reduced pressure
  7. customto obtain 460 mg (yield: 93%) of the

Sources & evidence

ORD record
ord-ee759e2c439f4fd8bf241f0d0bb0ee82
Source dataset
uspto-grants-1995_08
Patent number
US05440049

Reaction notes

Loading…