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Chemical Structure| 108128-27-4 Chemical Structure| 108128-27-4

Structure of 108128-27-4

Chemical Structure| 108128-27-4

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Product Details of [ 108128-27-4 ]

CAS No. :108128-27-4
Formula : C9H8N2O2S
M.W : 208.24
SMILES Code : O=S(N1N=CC=C1)(C2=CC=CC=C2)=O
MDL No. :MFCD00514543

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Application In Synthesis of [ 108128-27-4 ]

* 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 [ 108128-27-4 ]

[ 108128-27-4 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 108128-27-4 ]
  • [ 934758-92-6 ]
YieldReaction ConditionsOperation in experiment
21% 5-Chloropyrazole (VDBuLi (1.6M, 3.4 mL, 5.4 mmol) was added under argon to a solution of1-benzenesulfonylpyrazole (750 mg, 3.6 mmol; see Intermediate (V) above) in THF (50 mL) at -780C. The mixture was stirred for 45 min before hexachloro- ethane (1.70 g, 7.2 mmol) was added in one portion. After stirring at -780C for 10 min, the mixture was allowed to warm to 10- 150C over 75 min. The mixture was poured into H2OZNH4Cl (1:1, aq, sat, 50 mL). The layers were separated and the aqueous phase was extracted with EtOAc (2 x 50 mL). The combined organic phases were dried (Na2SO4) and concentrated. The semi-solid residue was dissolved in MeOH (30 mL) followed by addition of sodium methoxide (30% in MeOH, 1.6 mL, 7.2 mmol). Stirring at it for 45 min, addition Of NaHCO3 (sat., aq., 1 mL) followed by extraction, concentration of the extract and purification of the residue by chromatography (1:1 EtOAc/ heptane) gave the title compound as a white solid (Yield: 78 mg, 21%).
 

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