1021019-03-3
- Product Name：2-bromo-[1,2,4]triazolo[1,5-a]pyridine
- Molecular Formula：C6H4BrN3
- Purity：99%
- Molecular Weight：198.022
Product Details;
CasNo： 1021019-03-3
Molecular Formula： C6H4BrN3
Factory Sells Best Quality 2-bromo-[1,2,4]triazolo[1,5-a]pyridine 1021019-03-3 with stock
- Molecular Formula:C6H4BrN3
- Molecular Weight:198.022
- PKA:0.47±0.30(Predicted)
- PSA：30.19000
- Density:1.89±0.1 g/cm3(Predicted)
- LogP:1.49180
1021019-03-3 Relevant articles
ORGANIC COMPOUNDS AND ORGANIC ELECTRO LUMINESCENCE DEVICE COMPRISING THE SAME
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Paragraph 0147; 0158-0162, (2019/08/01)
The present invention relates to a novel...
Triazolopyridine based organic electroluminescent material and organic electroluminescent device
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Paragraph 0064-0065, (2020/01/03)
The invention relates to the technical f...
In order to N - pyridine -2 - (1 H) - [...] for the mother nucleus of the fluorescent molecule and its preparation and use (by machine translation)
-
Paragraph 0032; 0034; 0036; 0040, (2018/11/22)
The invention of formula (I) as shown in...
1021019-03-3 Process route
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874-46-4
2-amino-s-triazolo-<1,5-a>-pyridne
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![2-bromo-[1,2,4]triazolo[1,5-a]pyridine](/upload/2026/9/4867158c-3d50-4458-9395-4678c8231658.png)
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1021019-03-3
2-bromo-[1,2,4]triazolo[1,5-a]pyridine
| Conditions | Yield |
|---|---|
|
With
hydrogen bromide; sodium nitrite;
In
water; acetonitrile;
at 20 ℃;
Cooling with ice;
|
73% |
|
With
hydrogen bromide; copper(ll) bromide; sodium nitrite;
In
tetrahydrofuran; water;
at 0 - 20 ℃;
for 12h;
|
60% |
|
With
nitrous acid isobutyl ester; copper(ll) bromide;
In
acetonitrile;
at 0 - 20 ℃;
for 1.5h;
Inert atmosphere;
|
3.08 g |
-
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504-29-0
2-aminopyridine
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-
1021019-03-3
2-bromo-[1,2,4]triazolo[1,5-a]pyridine
| Conditions | Yield |
|---|---|
|
Multi-step reaction with 2 steps
1.1: dichloromethane / 4 h / 20 °C
1.2: 20 °C / Reflux
2.1: sodium nitrite; hydrogen bromide / water; acetonitrile / 20 °C / Cooling with ice
With
hydrogen bromide; sodium nitrite;
In
dichloromethane; water; acetonitrile;
|
|
|
Multi-step reaction with 3 steps
1: dichloromethane / 20 h / 0 - 20 °C
2: hydroxylamine hydrochloride; triethylamine / ethanol; methanol / 3 h / Reflux
3: copper(ll) bromide; hydrogen bromide; sodium nitrite / tetrahydrofuran; water / 12 h / 0 - 20 °C
With
hydroxylamine hydrochloride; hydrogen bromide; triethylamine; copper(ll) bromide; sodium nitrite;
In
tetrahydrofuran; methanol; ethanol; dichloromethane; water;
|
|
|
Multi-step reaction with 3 steps
1: 20 °C
2: N,N-diethylethylenediamine; hydroxylamine hydrochloride / methanol; ethanol / 2 h / 60 °C
3: copper(ll) bromide; nitrous acid isobutyl ester / acetonitrile / 1.5 h / 0 - 20 °C / Inert atmosphere
With
nitrous acid isobutyl ester; hydroxylamine hydrochloride; N,N-diethylethylenediamine; copper(ll) bromide;
In
methanol; ethanol; acetonitrile;
|
1021019-03-3 Upstream products
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874-46-4
2-amino-s-triazolo-<1,5-a>-pyridne
-
504-29-0
2-aminopyridine
-
23822-54-0
N-ethoxycarbonyl-N'-(pyridin-2-yl)tiourea
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