(5-Chloro-3-nitro-pyridin-2-yl)-hydrazine synthesis
- Product Name:(5-Chloro-3-nitro-pyridin-2-yl)-hydrazine
- CAS Number:22353-46-4
- Molecular formula:C5H5ClN4O2
- Molecular Weight:188.57
21427-62-3
236 suppliers
$6.00/1g
22353-46-4
16 suppliers
$65.00/100mg
Yield:22353-46-4 82%
Reaction Conditions:
with hydrazine hydrate in methanol at 60; for 2 h;
Steps:
45 5-chloro-2-hydrazino-3-nitropyridine (compound 45A)
Hydrazine hydrate (497mg, 15.5mmol)Add to 2,5-dichloro-3-nitropyridine (1 g, 5.2 mmol)The reaction was stirred at 60 ° C for 2 hours in a methanol solution.Filtration to give the crude compound 45A.Directly used in the next reaction (800 mg, 82% yield).
References:
CN104045552,2019,B Location in patent:Paragraph 0487; 0488; 0489; 0490
4214-79-3
247 suppliers
$6.00/1g
22353-46-4
16 suppliers
$65.00/100mg
21427-61-2
189 suppliers
$6.00/1g
22353-46-4
16 suppliers
$65.00/100mg