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Chemical Structure| 99840-59-2 Chemical Structure| 99840-59-2

Structure of 99840-59-2

Chemical Structure| 99840-59-2

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Product Details of [ 99840-59-2 ]

CAS No. :99840-59-2
Formula : C11H14N2O
M.W : 190.24
SMILES Code : O=C1NC2=CC(C(C)(C)C)=CC=C2N1

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Application In Synthesis of [ 99840-59-2 ]

* 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 [ 99840-59-2 ]

[ 99840-59-2 ] Synthesis Path-Downstream   1~2

  • 1
  • [ 68176-57-8 ]
  • [ 530-62-1 ]
  • [ 99840-59-2 ]
YieldReaction ConditionsOperation in experiment
70% In tetrahydrofuran; at 0 - 20℃; for 12h; At 0 C,To 4-tert-butylbenzene-1,2-diamine (I-9, 5.02 g, 30.5 mmol)Add in tetrahydrofuran (400mL) solution1,1'-carbonyldiimidazole (CDI, 5.43 g, 33.6 mmol),The resulting solution was stirred at room temperature for 12 hours.Then diluted with diisopropyl ether (50 mL),The mixture was stirred for a further 30 minutes at room temperature.White precipitates gradually appear,Filter and collect products,Wash with diisopropyl ether (50 mL),Vacuum drying,4.05 g (yield: 70%) of 5-tert-butyl-1H-benzo[d]imidazole-2(3H)-one (IX-1),It is a white solid.
In tetrahydrofuran; dichloromethane; at 20℃; for 6.5h; General procedure: To a solution of 4-methyl-1,2-phenylenediamine (25 g, 0.205 mol) in tetrahydrofuran (375 mL) was added dropwise a solution of 1,1'-carbonyldiimidazole (36.5 g, 0.225 mol) in dichloromethane (375 mL). After stirring for 6.5 h at ambient temperature, to the reaction mixture was added diisopropyl ether (375 mL). After stirring at ambient temperature, the resulting precipitates were collected by filtration. The precipitates were washed with diisopropyl ether and dried in vacuo to give 5-methyl-1,3-dihydrobenzimidazol-2-one (24.6 g, 70.1%).
  • 2
  • [ 32703-79-0 ]
  • [ 99840-59-2 ]
YieldReaction ConditionsOperation in experiment
52% With trimethylsilylazide; In tetrahydrofuran; for 30h;Reflux; General procedure: To a solution of phthalic anhydride in THF (1.0 mm), TMSA (4.0 equiv.) was added and the mixture was refluxed with stirring for 30 h. The resulting solution was concentrated in vacuo until a solid formed. The solid was washed with diethyl ether (5×4 ml) to obtain high purity imidazolin-2-ones 3.
 

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