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Chemical Structure| 141998-90-5 Chemical Structure| 141998-90-5

Structure of 141998-90-5

Chemical Structure| 141998-90-5

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Product Details of [ 141998-90-5 ]

CAS No. :141998-90-5
Formula : C9H7IN2
M.W : 270.07
SMILES Code : IC1=NN(C2=CC=CC=C2)C=C1
MDL No. :MFCD12756563
InChI Key :RJCCRXXUBFGPBW-UHFFFAOYSA-N
Pubchem ID :14972074

Safety of [ 141998-90-5 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319
Precautionary Statements:P501-P270-P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P332+P313-P301+P312+P330

Application In Synthesis of [ 141998-90-5 ]

* 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 [ 141998-90-5 ]

[ 141998-90-5 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 1128-56-9 ]
  • [ 141998-90-5 ]
YieldReaction ConditionsOperation in experiment
82% 3-iodo- 1 -phenyl- 1 H -pyrazole To a stirred solution of 1 -phenyl-1 H-pyrazol-3-amine (1 .0 g, 6.28 mmol) in THF (20 imL) was added 4M aqueous HCI (15.0 imL), and the solution was cooled in an ice water bath. A solution of NaNO2 (0.52g, 7.54 mmol) in H2O (10 imL) was added dropwise. After 20 min, a solution of Kl (2.61 g, 15.7 mmol) in H2O (10 imL) was added, and stirred for 10 min in the ice water bath. Then the solution was slowly warmed up to room temperature and stirred for 1 h before 1 M aqueous Na2S2O3 was added until the colour of the mixture did not change. The phases were separated, and the aqueous phase extracted with ethyl acetate (15 mL x 3). The combined organic layers were washed with H2O (5 mL x 2) and brine (5 mL), dried over anhydrous magnesium sulfate, filtered and concentrated in vacuo. The residue was purified by flash column chromatography, eluting with 0-10% ethyl acetate and petroleum benzine, afforded the desired product, 3-iodo-1 -phenyl-1 H-pyrazole, as a colourless oil (1 .39 g, 82% yield).
 

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