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4-Benzenesulfonyl-1-phenyl-1H-pyrazole is a chemical compound with the molecular formula C13H10N2O2S. It is a derivative of pyrazole, a heterocyclic organic compound consisting of a five-membered ring with two nitrogen atoms and three carbon atoms. In this specific compound, a benzenesulfonyl group (C6H5SO2) is attached to the 4-position of the pyrazole ring, and a phenyl group (C6H5) is attached to the 1-position. This molecule is known for its potential applications in the synthesis of various pharmaceuticals and agrochemicals, as well as its use as an intermediate in organic chemistry. The compound is characterized by its white crystalline appearance and is typically obtained through chemical synthesis involving reactions such as the condensation of phenylhydrazine with ethyl acetoacetate followed by cyclization and sulfonylation steps.

3968-50-1

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3968-50-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3968-50-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,9,6 and 8 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 3968-50:
(6*3)+(5*9)+(4*6)+(3*8)+(2*5)+(1*0)=121
121 % 10 = 1
So 3968-50-1 is a valid CAS Registry Number.

3968-50-1Downstream Products

3968-50-1Relevant academic research and scientific papers

1,3-Dipolar Cycloadditions with Alkynyl Phenyl Sulphones

Croce, Piero Dalla,Rosa, Concetta La,Zecchi, Gaetano

, p. 2621 - 2624 (2007/10/02)

Alkynyl phenyl sulphones (4) react with the nitrile oxide (1), the nitrile imine (2), and sydnone (3) to afford predominantly or exclusively 4-phenylsulphonyl substituted cycloadducts (5), (7), and (9).The observed regioselectivity is discussed.

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