2,6-DICHLOROPYRIDINEN-OXIDE
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2,6-DICHLOROPYRIDINEN-OXIDE
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CAS No:
2587-00-0
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Formula:
C5H3Cl2NO
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Chemical Name:
2,6-DICHLOROPYRIDINEN-OXIDE
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Synonyms:
NSC136569;AURORAKA-3003;AURORAKA-6496;2,6-DICHLOROPYRIDINEN-OXIDE;2,6-DICHLOROPYRIDINE1-OXIDE;2,6-DichloropyridineN-oxide98%;2,6-Dichloropyridine-N-oxide,98%;2,6-dichloro-2,3-dihydropyridin-3-one
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CAS No:
Characteristics
25.5
1.8
White to creamish or light yellow Powder or Crystals
1.5±0.1 g/cm3
138-142 °C(lit.)
344.2°C at 760 mmHg
162.0±22.3 °C
1.582
Safety Information
6.1
NONH for all modes of transport
3
36/37/38-20/21/22
36/37/39-26-22
Xn
P261, P264, P270, P271, P280, P301+P312, P302+P352, P304+P312, P304+P340, P305+P351+P338, P312, P321, P322, P330, P332+P313, P337+P313, P361, P362, P363, P403+P233, P405, P501
H302
|Danger|H302 (83.33%): Harmful if swallowed [Warning Acute toxicity, oral]|P261, P264, P270, P271, P280, P301+P312, P302+P352, P304+P312, P304+P340, P305+P351+P338, P312, P321, P322, P330, P332+P313, P337+P313, P361, P362, P363, P403+P233, P405, and P501|Aggregated GHS information provided by 6 companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
2,6-DICHLOROPYRIDINEN-OXIDE Use and Manufacturing
Weighed 2.0 g of the catalyst silicate tungstate heteropoly acid, 150 g of crushed 2, 6-dichloropyridine was added to 95 g of TFA, Stirring and heating to 80 ° C dissolved slowly after the concentration of 50percent of the concentration of H2O2115g, about 1h drops finished.And then heated to reflux state, stirring and holding 2h. After the end of the insulation, the first filter out the catalyst, Cooled to room temperature, slowly poured into 300 mL of ice water, and the unreacted 2, 6-dichloropyridine residue was filtered off.The filtrate was dewatered to remove water and excess TFA, and the mother liquor was added with the appropriate amount of CHCl3 to extract, De-dissolving pale yellow loose 2, 6-dichloropyridine-N-oxide, HPLC analysis content of 98.9percentYield 90.15percent.(1)(1)General Procedure: To an oven-dried 4-dram vial is added the pyridine (1.0 mmol), sodium percarbonate (157 mg, 1.0 eq.) and anhydrous CHGeneral procedure for synthesis of 2, 6-dichloropyridine-1-oxide (Y-2) 2, 6-Dichloropyridine (E-1) (10.0 g, 0.067 mol) was dissolved in a mixture of CF
Computed Properties
Molecular Weight:163.99
XLogP3:1.8
Hydrogen Bond Acceptor Count:1
Exact Mass:162.9591691
Monoisotopic Mass:162.9591691
Topological Polar Surface Area:25.5
Heavy Atom Count:9
Complexity:91
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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