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Chemical Structure| 2648-51-3 Chemical Structure| 2648-51-3

Structure of 2648-51-3

Chemical Structure| 2648-51-3

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Product Details of [ 2648-51-3 ]

CAS No. :2648-51-3
Formula : C3H2Cl2O
M.W : 124.95
SMILES Code : O=CC=C(Cl)Cl
MDL No. :MFCD01673800

Safety of [ 2648-51-3 ]

Application In Synthesis of [ 2648-51-3 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 2648-51-3 ]

[ 2648-51-3 ] Synthesis Path-Downstream   1~5

  • 1
  • [ 2648-51-3 ]
  • [ 33906-30-8 ]
  • 2-{N'-[3,3-Dichloro-prop-2-en-(E)-ylidene]-hydrazino}-benzoic acid [ No CAS ]
  • 2
  • [ 2648-51-3 ]
  • [ 98-17-9 ]
  • [ 38980-96-0 ]
  • 4-(3''-trifluoromethylphenoxy)-2-(4'-trifluoromethylphenyl)pyrimidine [ No CAS ]
  • 3
  • [ 2648-51-3 ]
  • [ 98-17-9 ]
  • [ 57297-29-7 ]
  • 2-cyclopropyl-4-(3-trifluoromethylphenoxy)pyrimidine [ No CAS ]
YieldReaction ConditionsOperation in experiment
75% With potassium carbonate; In 1,2-dimethoxyethane; for 3h;Heating / reflux; Example 14 Preparation of 2-cyclopropyl-4-(3-trifluoromethylphenoxy)pyrimidine 3,3-Dichloroacrolein (10 mmoles) diluted with dimethoxyethane (35 ml), is slowly added to a mixture consisting of a cyclopropylcarbamidine hydrochloride (10 mmoles), 3-trifluoromethylphenol (11 mmoles), potassium carbonate (40 mmoles) and dimethoxyethane (40 ml), which is stirred under reflux. When the addition of 3,3-dichloroacrolein is completed additional cyclopropylcarbamidine hydrochloride (1 mmoles) is added. The reaction mixture is stirred for 3 hours under reflux and subsequently cooled down to ambient temperature over night and filtered through silica. The organic phase is concentrated in vacuo. The residue was purified by chromatography on Al2O3 (petrol ethers / ethyl acetate: 20 / 1) to yield 2.1 g (75 percent) of the pure product having as a colorless liquid; 1H NMR (CDCl3); delta = 2.10 ppm (m, N=C(=N)-CH).
2.1 g (75%) With potassium carbonate; In 1,2-dimethoxyethane; EXAMPLE 14 Preparation of 2-cyclopropyl-4-(3-trifluoromethylphenoxy)pyrimidine 3,3-Dichloroacrolein (10 mmoles) diluted with dimethoxyethane (35 ml), is slowly added to a mixture consisting of a cyclopropylcarbamidine hydrochloride (10 mmoles), 3-trifluoromethylphenol (11 mmoles), potassium carbonate (40 mmoles) and dimethoxyethane (40 ml), which is stirred under reflux. When the addition of 3,3-dichloroacrolein is completed additional cyclopropylcarbamidine hydrochloride (1 mmoles) is added. The reaction mixture is stirred for 3 hours under reflux and subsequently cooled down to ambient temperature over night and filtered through silica. The organic phase is concentrated in vacuo. The residue was purified by chromatography on Al2O3 (petrol ethers/ethyl acetate: 20/1) to yield 2.1 g (75percent) of the pure product having as a colorless liquid; 1H NMR (CDCl3); delta=2.10 ppm (m, N=C(=N)-CH).
  • 4
  • [ 2648-51-3 ]
  • [ 1561-41-7 ]
  • [ 98-17-9 ]
  • [ 38980-96-0 ]
  • 4-(3''-trifluoromethylphenoxy)-2-(4'-trifluoromethylphenyl)pyrimidine [ No CAS ]
YieldReaction ConditionsOperation in experiment
3,07 g (80%) With potassium carbonate; In 1,2-dimethoxyethane; water; EXAMPLE 11 Enhanced preparation of 4-(3-trifluoromethylphenoxy)-2-(4-trifluoromethylphenyl)-pyrimidine Water (20 mmoles) is added to a solution of 1,1,1,3-tetrachloro-3-ethoxypropane (10 mmoles) in dimethoxyethane (25 ml). The reaction mixture is stirred for 2 h under reflux. The resulting mixture is slowly added to a mixture consisting of a <strong>[38980-96-0]4-<strong>[38980-96-0]trifluoromethylbenzamidine hydrochloride</strong></strong> (10 mmoles), 3-trifluoromethylphenol (11 mmoles), potassium carbonate (60 mmoles) and dimethoxyethane (50 ml), which is stirred under reflux. When the addition of 3,3-dichloroacrolein solution is completed additional <strong>[38980-96-0]4-<strong>[38980-96-0]trifluoromethylbenzamidine hydrochloride</strong></strong> (1 mmoles) is added. The reaction mixture is stirred for 2 hours under reflux and subsequently cooled down to ambient temperature, filtered through silica, and the organic phase is concentrated in vacuo. The residue is purified by chromatography on SiO2 (petrol ethers/diisopropylether: 6/1) to yield 3,07 g (80%) of the product having a melting point of 66-67 C.
  • 5
  • [ 2648-51-3 ]
  • [ 1561-41-7 ]
  • [ 98-17-9 ]
  • [ 38980-96-0 ]
  • [ 584-08-7 ]
  • 4-(3''-trifluoromethylphenoxy)-2-(4'-trifluoromethylphenyl)pyrimidine [ No CAS ]
YieldReaction ConditionsOperation in experiment
80% Example 11 Enhanced preparation of 4-(3-trifluoromethylphenoxy)-2-(4-trifluoromethylphenyl)-pyrimidine Water (20 mmoles) is added to a solution of 1,1,1,3-tetrachloro-3-ethoxypropane (10 mmoles) in dimethoxyethane (25 ml). The reaction mixture is stirred for 2 h under reflux. The resulting mixture is slowly added to a mixture consisting of a <strong>[38980-96-0]4-<strong>[38980-96-0]trifluoromethylbenzamidine hydrochloride</strong></strong> (10 mmoles), 3-trifluoromethylphenol (11 mmoles), potassium carbonate (60 mmoles) and dimethoxyethane (50 ml), which is stirred under reflux. When the addition of 3,3-dichloroacrolein solution is completed additional <strong>[38980-96-0]4-<strong>[38980-96-0]trifluoromethylbenzamidine hydrochloride</strong></strong> (1 mmoles) is added. The reaction mixture is stirred for 2 hours under reflux and subsequently cooled down to ambient temperature, filtered through silica, and the organic phase is concentrated in vacuo. The residue is purified by chromatography on SiO2 (petrol ethers / diisopropylether: 6 / 1) to yield 3,07 g (80 %) of the product having a melting point of 66-67 C.
 

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