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Chemistry
Heterocyclic Building Blocks
Pyridines
3,5-Dichloro-2,6-difluoroisonicotinaldehyde
Chemistry
Heterocyclic Building Blocks
Organic Building Blocks
Pyridines
Chlorides Fluorinated Building Blocks Aldehydes

[ CAS No. 17723-32-9 ] {[proInfo.proName]}

,{[proInfo.pro_purity]}
Cat. No.: {[proInfo.prAm]}
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Chemical Structure| 17723-32-9
Chemical Structure| 17723-32-9
Structure of 17723-32-9 * Storage: {[proInfo.prStorage]}
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Quality Control of [ 17723-32-9 ]

COA NMR CNMR HPLC LC-MS

Related Doc. of [ 17723-32-9 ]

SDS Specification
Alternatived Products of [ 17723-32-9 ]

Product Details of [ 17723-32-9 ]

CAS No. :17723-32-9 MDL No. :MFCD06410688
Formula : C6HCl2F2NO Boiling Point : -
Linear Structure Formula :- InChI Key :-
M.W : 211.98 Pubchem ID :-
Synonyms :

Safety of [ 17723-32-9 ]

Signal Word:Danger Class:6.1
Precautionary Statements:P261-P264-P270-P271-P280-P302+P352-P304+P340-P310-P330-P361-P403+P233-P405-P501 UN#:2810
Hazard Statements:H301-H311-H331 Packing Group:Ⅲ
GHS Pictogram:

Application In Synthesis of [ 17723-32-9 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 17723-32-9 ]

[ 17723-32-9 ] Synthesis Path-Downstream   1~3

  • 2
  • [ 17723-26-1 ]
  • [ 17723-32-9 ]
YieldReaction ConditionsOperation in experiment
With diisobutylaluminium hydride In methanol; toluene; Petroleum ether 15.B Step B Step B Synthesis of 3,5-dichloro-2,6-difluoropyridine-4-carboxaldehyde To a mixture, of 10.1 g (0.048 mole) of 4-cyano-3,5-dichloro-2,6-difluoropyridine (from Step A) in 50 ml of toluene that had been cooled to 0° C. was added 6.9 g (0.049 mole) of diisobutylaluminum hydride. After complete addition the reaction mixture was allowed to warm to room temperature and was stirred for approximately seventeen hours. A mixture of methanol and petroleum ether (2:1) was added to the reaction mixture which was then acidified with dilute sulfuric acid. The organic layer was separated from the aqueous layer and was dried over anhydrous sodium sulfate. After being filtered, the solvent was evaporated under reduced pressure, leaving 6.0 g of 3,5-dichloro-2,6-difluoropyridine-4-carboxaldehyde as a residue.
Reference： [1]Current Patent Assignee: FMC CORP - US4701464, 1987, A
  • 3
  • [ 17723-32-9 ]
  • 3,5-dichloro-2,6-difluoro-4-hydroxymethylpyridine [ No CAS ]
YieldReaction ConditionsOperation in experiment
With hydrogenchloride; sodium borohydrid; sodium hydrogencarbonate In ethanol 15.C Step C Step C Synthesis of 3,5-dichloro-2,6-difluoro-4-hydroxymethylpyridine To a mixture of 5.0 g (0.024 mole) of 3,5-dichloro-2,6-difluoropyridine-4-carboxaldehyde (from Step B) in 100 ml of ethanol that had been cooled to 0° C. was added slowly 1.4 g (0.037 mole) of sodium borohydride. After complete addition the reaction mixture was allowed to warm to room temperature and was stirred for approxmately seventeen hours. The reaction mixture was quenched with a stoichiometric amount of glacial acetic acid, and the ethanol was evaporated under reduced pressure, leaving a residue. This residue was mixed with dilute hydrochloric acid, and this mixture was extracted with diethyl ether. The combined extracts were washed repeatedly with a 5% aqueous solution of sodium bicarbonate. The extract was dried over anhydrous sodium sulfate and filtered. The solvent was evaporated under reduced pressure, leaving 3.0 g of 3,5-dichloro-2,6-difluoro4-hydroxymethylpyridine as a residue.
Reference： [1]Current Patent Assignee: FMC CORP - US4701464, 1987, A

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