Water → 3-Ethyl-2-(2-isopropylphenyl)imino-5,5-dimethyl-1,3-thiazine

HRID 2415052Notes

Reaction equation

HRID 2415052 reaction equation
[CH:1]([C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][C:5]=1[N:10]=[C:11]1[N:16]=[CH:15][C:14]([CH3:18])([CH3:17])[CH2:13][S:12]1)([CH3:3])[CH3:2].[H-].[Na+].[CH2:21](I)[CH3:22].O>CN(C)C=O>[CH2:21]([N:16]1[CH2:15][C:14]([CH3:18])([CH3:17])[CH2:13][S:12][C:11]1=[N:10][C:5]1[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=1[CH:1]([CH3:3])[CH3:2])[CH3:22]

Participants

6

Reactant 4

HCID 962WaterHCID 6340IodoethaneHCID 24758Sodium hydrideHCID 223795002-(2-Isopropylphenyl)imino-5,5-dimethyl-1,3-thiazine

Product 1

HCID 121467793-Ethyl-2-(2-isopropylphenyl)imino-5,5-dimethyl-1,3-thiazineYield 72.4%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of 2-(2-isopropylphenyl)imino-5,5-dimethyl-1,3-thiazine (0.26 g) in N,N-dimethylformamide (2 ml) was added under ice-cooling 60% sodium hydride (0.05 g). The mixture was stirred for 30 minutes. Ethyliodide (0.17 g) was added thereto. The mixture was stirred at room temperature for 2 hours. To a reaction mixture was added water (30 ml), extracted with diethylether (60 ml), dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (n-hexane/ethyl acetate) to give 3-ethyl-2-(2-isopropylphenyl)imino-5,5-dimethyl-1,3-thiazine (0.21 g, yield: 71%) as colorless oil.

Workup

  1. stirringThe mixture was stirred at room temperature for 2 hours
  2. extractionextracted with diethylether (60 ml)
  3. dry with materialdried over anhydrous magnesium sulfate
  4. concentrationconcentrated under reduced pressure
  5. customThe obtained residue was purified by silica gel column chromatography (n-hexane/ethyl acetate)

Sources & evidence

ORD record
ord-f706856c9d674b49948909ffb68a0f1d
Source dataset
uspto-grants-2004_11
Patent number
US06818640B1

Reaction notes

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