3,5-Dichloropyridine synthesis
- Product Name:3,5-Dichloropyridine
- CAS Number:2457-47-8
- Molecular formula:C5H3Cl2N
- Molecular Weight:147.99
2808-86-8
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2457-47-8
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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
16063-70-0
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2457-47-8
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104408-23-3
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2457-47-8
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2176-62-7
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2457-47-8
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15177-57-8
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$15.00/1g
2457-47-8
311 suppliers
$6.00/5g