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Chemical Structure| 57842-09-8 Chemical Structure| 57842-09-8

Structure of 57842-09-8

Chemical Structure| 57842-09-8

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Product Details of [ 57842-09-8 ]

CAS No. :57842-09-8
Formula : C12H9IN2O
M.W : 324.12
SMILES Code : IC1=CN=CC=C1C(NC2=CC=CC=C2)=O

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Application In Synthesis of [ 57842-09-8 ]

* 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 [ 57842-09-8 ]

[ 57842-09-8 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 3034-31-9 ]
  • [ 57842-09-8 ]
YieldReaction ConditionsOperation in experiment
640 ml of a tetrahydrofuran solution containing 32 g of thecompound obtained in the above-mentioned (1) was cooled to -78C,13 ml of n-butyl lithium (1.6M hexane solution) was added dropwiseto the solution and the resulting mixture was stirred for 0.5 hour.The temperature of the reaction mixture was gradually elevated upto 0C, and the mixture was stirred for 1.5 hours. The mixture wasagain cooled to -78C, 120 ml of a tetrahydrofuran solutioncontaining 40 g of iodine was added dropwise to the mixture, andthe resulting mixture was stirred for 3 hours. To the reactionmixture were added ethyl acetate and water, the liquids wereseparated, and the organic layer was dried over anhydrous magnesium sulfate. The organic layer was concentrated under reducedpressure, and the obtained residue was triturated by a mixedsolvent of dichloromethane and diisopropyl ether to give 31 g of N-phenyl-3-iodoisonicotinic amide shown in Table 55 'below.(3) To 25 g of the compound obtained in the above-mentioned (2) wasadded 200 ml of about 25% aqueous hydrochloric acid solution, andthe resulting mixture was stirred under reflux for 16 hours. Thereaction mixture was cooled to 0C, and the formed precipitateswere collected by filtration. The collected precipitates werewashed with a small amount of water to give 14.5 g of 3-iodoiso-nicotinic acid hydrochloride shown in Table 55 below.
 

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