2,6-Dibromo-4-nitropyridine
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2,6-Dibromo-4-nitropyridine
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CAS No:
175422-04-5
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Formula:
C5H2Br2N2O2
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Chemical Name:
2,6-Dibromo-4-nitropyridine
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Synonyms:
Pyridine,2,6-dibromo-4-nitro-;2,6-Dibromo-4-nitropyridine;1630264-36-6
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CAS No:
Safety Information
IRRITANT
P261, P264, P270, P271, P280, P301+P312, P302+P352, P304+P312, P304+P340, P305+P351+P338, P312, P321, P322, P330, P332+P313, P337+P313, P362, P363, P403+P233, P405, P501
H302
|Warning|H302 (50%): 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, P362, P363, P403+P233, P405, and P501|Aggregated GHS information provided by 2 companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
2,6-Dibromo-4-nitropyridine Use and Manufacturing
C. 2, 6-Dibromo-4-nitro-pyridine To a suspension of 22.7 G (76.2 MMOL) 2, 6-dibromo-4-nitro-pyridin N-oxide in chloroform (120 ml) was added dropwise phosphorus trichloride (20 ML, 229 MMOL) at 5 C. The reaction mixture was heated to 75 C and refluxed for 4d. After the reaction was completed, the mixture was cautiously poured into 600 ml ice-water and the solution neutralized with sodium bicarbonate. The layers were separated and the water-layer was extracted with chloroform (3 x 150 ML). The organic layers were dried over magnesium sulphate and concentrated in vacuo. The residue was purified by chromatography on silica gel (petroleum ether/ethyl acetate = 4 : 1) to give 15.5 G (72percent) of the title compound as a white solid. m. p. 122-123 C.EXAMPLE 6 4-(2, 6-dibromopyridine-4-sulphonyl)-phenylamine 0.48 g (0.0025 mol) of EXAMPLE 8 4-(4-Aminobenzenesulphonyl)-6-bromopyridin-2-ylamine 0.48 g (0.0025 mol) of To a homogeneous mixture of A solution of A solution of In a sealed tube, A mixture of To a sealable reaction flask containing To a solution of 99A (0.473 g, 2.66 mmol) in l, 4-Dioxane (20 mL) was added DIPEA (1.239 mL, 7.09 mmol) followed by The solution of
Computed Properties
Molecular Weight:281.89
XLogP3:2.7
Hydrogen Bond Acceptor Count:3
Exact Mass:281.84625
Monoisotopic Mass:279.84830
Topological Polar Surface Area:58.7
Heavy Atom Count:11
Complexity:151
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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