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Chemical Structure| 1025893-78-0 Chemical Structure| 1025893-78-0

Structure of 1025893-78-0

Chemical Structure| 1025893-78-0

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Product Details of [ 1025893-78-0 ]

CAS No. :1025893-78-0
Formula : C15H21N3
M.W : 243.35
SMILES Code : NC1=CC(C(C)(C)C)=NN1C2=CC=C(C)C(C)=C2

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Application In Synthesis of [ 1025893-78-0 ]

* 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 [ 1025893-78-0 ]

[ 1025893-78-0 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 59997-51-2 ]
  • [ 60481-51-8 ]
  • [ 1025893-78-0 ]
YieldReaction ConditionsOperation in experiment
90% In ethanol; for 5h;Reflux; a. 5-tert-Butyl-2-(3,4-dimethyl-phenyl)-2H-pyrazol-3-ylamine (Intermediate Ja) A black solution of <strong>[60481-51-8]3,4-dimethylphenyl hydrazine hydrochloride</strong> (Apollo, 1.73 g, 10.0 mmol) and 4,4-dimethyl-3-oxopentanenitrile (1.38 g, 11.0 mmol) in EtOH (20 mL) was stirred at reflux for 5 h. The cooled solution was concentrated in vacuo, redissolved in diethyl ether (20 mL) and washed with aqueous NaOH solution (1M, 20 mL). The aqueous was extracted with diethyl ether (2*20 mL), then the combined organics washed with brine (20 mL), dried (Na2SO4), filtered and concentrated in vacuo to leave the title compound (2.18 g, 90percent). LCMS (Method 3): Rt 2.75 min, m/z 244 [MH+].
90% In ethanol; for 5h;Reflux; A black solution of <strong>[60481-51-8]3,4-dimethylphenyl hydrazine hydrochloride</strong> (Apollo, 1.73 g, 10.0 mmol) and 4,4-dimethyl-3-oxopentanenitrile (1.38 g, 11.0 mmol) in EtOH (20 mL) was stirred at reflux for 5 h. The cooled solution was concentrated in vacuo, redissolved in diethyl ether (20 mL) and washed with aqueous NaOH solution (1M, 20 mL). The aqueous was extracted with diethyl ether (2 x 20 mL), then the combined organics washed with brine (20 mL), dried (Na2S04), filtered and concentrated in vacuo to leave the title compound (2.18 g, 90percent). LCMS (Method 3): Rt 2.75 min, m/z 244 [MH+].
490 mg With triethylamine; In toluene; for 5h;Reflux; Example 62 3-(tert-butyl)-1-(3,4-dimethylphenyl)-1H-pyrazol-5-amine To a solution of pivaloylacetonitrile (400 mg) in toluene (10 mL) were added <strong>[60481-51-8]3,4-dimethylphenylhydrazine hydrochloride</strong> (520 mg) and triethylamine (0.4 mL) and refluxed with heating for 5 hours. The reaction mixture was added with a saturated sodium hydrogen carbonate aqueous solution. The obtained organic layer was washed with a saturated sodium chloride aqueous solution. The obtained organic layer was dried over anhydrous sodium sulfate and then concentrated under reduced pressure. The obtained residue was purified on silica gel column chromatography (hexane : ethyl acetate = 4 : 1) to give the titled compound (490 mg) having the following physical data. TCL : Rf 0.41 (Hexane : Ethyl Acetate = 4 : 1).
 

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