ChemicalBook > CAS DataBase List > 3-Chloro-6-(methylsulfonyl)pyridazine

3-Chloro-6-(methylsulfonyl)pyridazine

Product Name: 3-Chloro-6-(methylsulfonyl)pyridazine
CAS No.: 7145-62-2
Chemical Name: 3-Chloro-6-(methylsulfonyl)pyridazine
Synonyms: NSC 74444;3-Chloro-6-(methylsulfonyl);3-bromo-6-(methylsulfonyl)pyridazine;3-Chloro-6-(methylsulfonyl)pyridazine;Pyridazine, 3-chloro-6-(methylsulfonyl)-
CBNumber: CB62499013
Molecular Formula: C5H5ClN2O2S
Formula Weight: 192.62
MOL File: 7145-62-2.mol

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3-Chloro-6-(methylsulfonyl)pyridazine Property

Boiling point:: 451.4±45.0 °C(Predicted)
Density: 1.486±0.06 g/cm3(Predicted)
storage temp.: under inert gas (nitrogen or Argon) at 2-8°C
pka: -2.66±0.10(Predicted)

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Safety

HS Code: 2933998090

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Hazard and Precautionary Statements (GHS)

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N-Bromosuccinimide Price

TRC

Product number: C994365
Product name: 3-Chloro-6-(methylsulfonyl)pyridazine
Packaging: 500mg
Price: $285
Updated: 2021/12/16

Biosynth Carbosynth

Product number: FC144116
Product name: 3-Chloro-6-(methylsulfonyl)pyridazine
Packaging: 50mg
Price: $75
Updated: 2021/12/16

Biosynth Carbosynth

Product number: FC144116
Product name: 3-Chloro-6-(methylsulfonyl)pyridazine
Packaging: 100mg
Price: $120
Updated: 2021/12/16

Biosynth Carbosynth

Product number: FC144116
Product name: 3-Chloro-6-(methylsulfonyl)pyridazine
Packaging: 250mg
Price: $200
Updated: 2021/12/16

Apolloscientific

Product number: OR903459
Product name: 3-Chloro-6-(methylsulfonyl)pyridazine
Purity: 95%
Packaging: 250mg
Price: $218
Updated: 2021/12/16

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3-Chloro-6-(methylsulfonyl)pyridazine Chemical Properties,Usage,Production

Synthesis

7145-61-1

7145-62-2

The general procedure for the synthesis of 3-chloro-6-(methylthio)pyridazine from 3-chloro-6-(methylsulfonyl)pyrazine was as follows: 3-chloro-6-(methylthio)pyridazine (90 mg, 0.50 mmol) was dissolved in dichloromethane (10 mL), and isochloroperbenzoic acid (220 mg, 1.00 mmol) was added. The reaction mixture was stirred at 0 °C for 30 min under nitrogen protection. After completion of the reaction, water (20 mL) was added to the reaction solution and extracted twice with dichloromethane (10 mL). The organic layers were combined, washed with saturated brine and dried over anhydrous magnesium sulfate. The solvent was removed by concentration under reduced pressure and the resulting residue was purified by silica gel column chromatography (eluent: ethyl acetate/hexane, gradient elution, 10%-100%) to afford the target compound 3-chloro-6-(methylsulfonyl)pyrazine (77 mg, 71% yield) as a white solid.1H-NMR (CDCl3, 400 MHz) data were as follows:δ 3.45 (3H, s) 7.81 (1H, d, J = 8.2Hz), 8.16 (1H, d, J = 8.4Hz).

References

[1] Patent: EP2239253, 2010, A1. Location in patent: Page/Page column 156
[2] Yakugaku Zasshi, 1955, vol. 75, p. 1242,1243
[3] Yakugaku Zasshi, 1956, vol. 76, p. 765
[4] Chem.Abstr., 1957, p. 1192
[5] Patent: WO2015/17305, 2015, A1. Location in patent: Page/Page column 65

3-Chloro-6-(methylsulfonyl)pyridazine Preparation Products And Raw materials

Raw materials

Preparation Products

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3-Chloro-6-(methylsulfonyl)pyridazine

3-bromo-6-(methylsulfonyl)pyridazine

NSC 74444

3-Chloro-6-(methylsulfonyl)

Pyridazine, 3-chloro-6-(methylsulfonyl)-

7145-62-2