ChemicalBook > CAS DataBase List > 2,3-DICHLORO-5-FORMYLPYRIDINE

2,3-DICHLORO-5-FORMYLPYRIDINE

Product Name
2,3-DICHLORO-5-FORMYLPYRIDINE
CAS No.
71690-05-6
Chemical Name
2,3-DICHLORO-5-FORMYLPYRIDINE
Synonyms
2,3-DICHLORO-5-FORMYLPYRIDINE;5,6-DICHLOROPYRIDINE-3-CARBALDEHYDE;5,6-Dichloropyridyl-3-carboxaldehyde;5,6-Dichloro-3-pyridinecarboxaldehyde;5,6-Dichloropyridine-3-carboxaldehyde;3-Pyridinecarboxaldehyde, 5,6-dichloro-;2,3-DICHLORO-5-FORMYLPYRIDINE ISO 9001：2015 REACH
CBNumber
CB0172943
Molecular Formula
C6H3Cl2NO
Formula Weight
176
MOL File
71690-05-6.mol
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2,3-DICHLORO-5-FORMYLPYRIDINE Property

storage temp. 
Inert atmosphere,2-8°C
Appearance
Off-white to light yellow Solid
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Safety

HazardClass 
IRRITANT
HS Code 
2933399990
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

TRC
Product number
D434495
Product name
5,6-Dichloropyridyl-3-carboxaldehyde
Packaging
2.5g
Price
$440
Updated
2021/12/16
Biosynth Carbosynth
Product number
FD151287
Product name
2,3-Dichloro-5-formylpyridine
Packaging
250mg
Price
$70
Updated
2021/12/16
Frontier Specialty Chemicals
Product number
D13070
Product name
2,3-Dichloro-5-formylpyridine
Purity
98%
Packaging
1g
Price
$90
Updated
2021/12/16
AK Scientific
Product number
W8061
Product name
2,3-Dichloro-5-formylpyridine
Packaging
250mg
Price
$117
Updated
2021/12/16
Biosynth Carbosynth
Product number
FD151287
Product name
2,3-Dichloro-5-formylpyridine
Packaging
500mg
Price
$125
Updated
2021/12/16
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2,3-DICHLORO-5-FORMYLPYRIDINE Chemical Properties,Usage,Production

Uses

5,6-Dichloropyridyl-3-carboxaldehyde is used to prepare [(pyridyl)piperazinyl]benzimidazoles analogs as potent, orally available antagonists of the transient receptor potential vanilloid 1 and analgesics. It is also used to synthesize heterocyclic aryl isoxazolines with insecticidal activities.

Synthesis

54127-30-9

71690-05-6

General procedure for the synthesis of 2,3-dichloro-5-formylpyridine from 5,6-dichloro-3-pyrimidinemethanol: To a 500 mL round-bottomed flask was added an anhydrous dichloromethane (150 mL) solution of 2,3-dichloro-5-hydroxymethylpyridine (64.810 g, 50.0 mmol), followed by manganese oxide (43.5 g, 0.50 mol). The reaction mixture was stirred at 25 °C for 48 hours. Upon completion of the reaction, it was filtered through Celite and the filtrate was concentrated under reduced pressure. The resulting crude product was purified by silica gel column chromatography using ethyl acetate (0%-40%)/hexane gradient elution to afford 2,3-dichloro-5-formylpyridine (7.2 g, 90% yield). The product was confirmed by 1H NMR (400 MHz, CDCl3): δ10.08 (1H, s), 8.77 (1H, d, J=1.97 Hz), 8.25 (1H, d, J=1.97 Hz). the LC/MS analysis showed the molecular ion peak (M+1) was 176.

References

[1] Patent: US2010/120862, 2010, A1. Location in patent: Page/Page column 94
[2] Patent: US2010/137306, 2010, A1. Location in patent: Page/Page column 169
[3] Patent: US2010/130499, 2010, A1. Location in patent: Page/Page column 122
[4] Patent: WO2008/132600, 2008, A2. Location in patent: Page/Page column 258
[5] Patent: WO2008/133973, 2008, A1. Location in patent: Page/Page column 68-69

2,3-DICHLORO-5-FORMYLPYRIDINE Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from 2,3-DICHLORO-5-FORMYLPYRIDINE manufacturers

Hebei Chuanghai Biotechnology Co., Ltd
Product
2,3-DICHLORO-5-FORMYLPYRIDINE 71690-05-6
Price
US $1.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
10 mt
Release date
2024-11-13
Dideu Industries Group Limited
Product
2,3-DICHLORO-5-FORMYLPYRIDINE 71690-05-6
Price
US $1.10/g
Min. Order
1g
Purity
99.00%
Supply Ability
100 Tons Min
Release date
2021-10-27

71690-05-6, 2,3-DICHLORO-5-FORMYLPYRIDINERelated Search:

Pyridine Dichloromethane 5,6-dichloro-2-methylpyrimidin-4-amine 5,6-DICHLORO-2-METHYLBENZIMIDAZOLE Methyl 5,6-dichloropicolinate 5,6-dichlorobenzimidazole 5,6-Dichloropyrazin-2-aMine 5,6-Dichloro-1H-benzo[d]imidazol-2(3H)-one 5,6-DICHLORO-3-PYRIDINEMETHANOL 5,6-dichloronicotinonitrile 4,5-DICHLORO-6-HYDROXYPYRIMIDINE Dichloroethane 2,6-DICHLORO-3-FORMYLPYRIDINE 2,3-DICHLORO-4-FORMYLPYRIDINE 2,5-DICHLORO-4-FORMYLPYRIDINE

  • 2,3-DICHLORO-5-FORMYLPYRIDINE
  • 5,6-DICHLOROPYRIDINE-3-CARBALDEHYDE
  • 5,6-Dichloropyridine-3-carboxaldehyde
  • 5,6-Dichloro-3-pyridinecarboxaldehyde
  • 5,6-Dichloropyridyl-3-carboxaldehyde
  • 3-Pyridinecarboxaldehyde, 5,6-dichloro-
  • 2,3-DICHLORO-5-FORMYLPYRIDINE ISO 9001：2015 REACH
  • 71690-05-6
  • Heterocycle-Pyridine series
  • Boronic Acid
  • Pyridine