![](/CAS/GIF/2457-47-8.gif)
3,5-Dichloropyridine synthesis
- Product Name:3,5-Dichloropyridine
- CAS Number:2457-47-8
- Molecular formula:C5H3Cl2N
- Molecular Weight:147.99
![2,3,4,5-tetrachloropyridine](/CAS/GIF/2808-86-8.gif)
2808-86-8
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$28.00/100mg
![3,5-Dichloropyridine](/CAS/GIF/2457-47-8.gif)
2457-47-8
298 suppliers
$6.00/5g
Yield:2457-47-8 98 %Chromat.
Reaction Conditions:
with ammonium chloride;zinc in 1,4-dioxane;water at 90 - 92; for 8 h;Product distribution / selectivity;
Steps:
4
2,3,4,5-Tetrachloropyridine (1 g) was charged to a reaction tube containing water (2 ml), 1,4-dioxane (6 ml), ammonium chloride (0.8 g) and zinc powder (1.5 g). Agitation was commenced (magnetic follower) and the reaction tube heated to 90-92° C. for 8 hours. Gas chromatography of the reaction mixture showed that it comprised a monochloropyridine 1.8% and 3,5-dichloropyridine 98%.
References:
US6639079,2003,B1 Location in patent:Page/Page column 4
![2,3,5-Trichloropyridine](/CAS/GIF/16063-70-0.gif)
16063-70-0
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$6.00/5g
![3,5-Dichloropyridine](/CAS/GIF/2457-47-8.gif)
2457-47-8
298 suppliers
$6.00/5g
![(3,5-DICHLORO-PYRIDIN-2-YL)-HYDRAZINE](/CAS/GIF/104408-23-3.gif)
104408-23-3
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![3,5-Dichloropyridine](/CAS/GIF/2457-47-8.gif)
2457-47-8
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![Pentachloropyridine](/CAS/GIF/2176-62-7.gif)
2176-62-7
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$12.00/10g
![3,5-Dichloropyridine](/CAS/GIF/2457-47-8.gif)
2457-47-8
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$6.00/5g
![3 5-DICHLOROPYRIDINE 1-OXIDE 98](/CAS/GIF/15177-57-8.gif)
15177-57-8
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$15.00/1g
![3,5-Dichloropyridine](/CAS/GIF/2457-47-8.gif)
2457-47-8
298 suppliers
$6.00/5g