2-CHLORO-3-FLUORO-4-IODOPYRIDINE
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2-CHLORO-3-FLUORO-4-IODOPYRIDINE
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CAS No:
148639-07-0
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Formula:
C5H2ClFIN
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Chemical Name:
2-CHLORO-3-FLUORO-4-IODOPYRIDINE
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Synonyms:
2-CHLORO-3-FLUORO-4-IODOPYRIDINE
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CAS No:
Characteristics
12.9
2.6
2.129±0.06 g/cm3(Predicted)
246.1±35.0 °C(Predicted)
102.6±25.9 °C
1.614
0.043mmHg at 25°C
Safety Information
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 (66.67%): 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 3 companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
2-CHLORO-3-FLUORO-4-IODOPYRIDINE Use and Manufacturing
A solution of lithium dizsopropylamide (2M in tetrahydrofuran /ethylbenzene/heptane, 155 mL, 0.31 mol) was added dropwise over 40 minutes to solution of 2-chloro-3-fluoropyridine (31 g, 0.235 mol) in tetrahydrofuran (200 mL) at -70 °C and the resulting mixture stirred for 4 hours. A solution of iodine (69 g, 0.2 mol) in tetrahydrofuran (100 mL) was added dropwise over 30 minutes and the resultant mixture was stirred for 30 minutes at -70 °C then allowed to warm to room temperature over 1 hour. The reaction mixture was poured onto aqueous sodium metabisulphite solution (20percentw/v, 2 L) and extracted with diethyl ether (3 x 300 mL). The combined organic extract was washed with aqueous sodium metabisulphite solution (20percentw/v, 2 L) and water (200 mL), dried over NaTo a mixture of General procedure: A reaction vial was charged with a mixture of the appropriate halide (1 equiv.), the organoboron reagent (1-3 equiv.), a Pd catalyst (0.05-0.1 equiv.) and an inorganic base (2-5 equiv.) in a mixture of water and 1 , 4-dioxane or toluene, as stated. The mixture was de gassed by evacuating and refilling with N2 three times or by bubbling N2 through for 5-15 min, then the reaction tube was sealed. The reaction was heated under the indicated conditions for the indicated time and allowed to cool to rt. Water or saturated NH4CI(aq) was added and the resulting mixture was extracted using DCM (x 3). The combined organic extracts were dried (phase separator), concentrated under reduced pressure and the remaining residue was purified by flash chromatography to give the product.To a three-necked flask was added
Computed Properties
Molecular Weight:257.43
XLogP3:2.6
Hydrogen Bond Acceptor Count:2
Exact Mass:256.89045
Monoisotopic Mass:256.89045
Topological Polar Surface Area:12.9
Heavy Atom Count:9
Complexity:103
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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2-CHLORO-3-FLUORO-4-IODOPYRIDINE
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