17973-86-3
- Product Name：3,6-Dibromopyridazide
- Molecular Formula：C4H2Br2N2
- Purity：99%
- Molecular Weight：237.881
Product Details;
CasNo： 17973-86-3
Molecular Formula： C4H2Br2N2
factory and supplier 17973-86-3 3,6-Dibromopyridazide in stock
- Molecular Formula:C4H2Br2N2
- Molecular Weight:237.881
- Vapor Pressure:0mmHg at 25°C
- Melting Point:116 °C
- Refractive Index:1.616
- Boiling Point:327.491 °C at 760 mmHg
- PKA:-1.18±0.10(Predicted)
- Flash Point:151.862 °C
- PSA：25.78000
- Density:2.197 g/cm3
- LogP:2.00160
3,6-Dibromopyridazide(Cas 17973-86-3) Usage
|
Preparation |
3,6-dibromopyridazine for Synthesis: A mixture of maleic hydrazide (1.1 g, 10 mmol) and PBr5 (4.7 g, 11 mmol) was heated at 100 °C until no more white fumes of hydrogen bromide were produced (~2 h). After cooling, the orange residue was poured into ice water and the resulting mixture was extracted with CH2Cl2 (3 x 20 mL). The organic layer was washed with saturated aqueous NaHCO3, dried over MgSO4, filtered and concentrated. The crude product was purified by flash column chromatography on silica gel (CH2Cl2) to give 3,6-dibromopyridazine as a white solid (1.20 g, 50%). |
InChI:InChI=1/C4H2Br2N2/c5-3-1-2-4(6)8-7-3/h1-2H
17973-86-3 Relevant articles
Donor-acceptor-donor-type liquid crystal with a pyridazine core
Yeon, Sil Park,Kim, Dohyung,Lee, Hoosung,Moon, Bongjin
, p. 4699 - 4702 (2006)
(Chemical Equation Presented) A new liqu...
-
Pedrali,Mantegani
, p. 778 (1958)
-
Pyridazine N-Oxides as Photoactivatable Surrogates for Reactive Oxygen Species
Basistyi, Vitalii S.,Frederich, James H.
supporting information, p. 1907 - 1912 (2022/03/27)
A method for the photoinduced evolution ...
One-Pot and Two-Chamber Methodologies for Using Acetylene Surrogates in the Synthesis of Pyridazines and Their D-Labeled Derivatives
Ananikov, Valentine P.,Ledovskaya, Maria S.,Polynski, Mikhail V.
, p. 2286 - 2297 (2021/07/20)
Acetylene surrogates are efficient tools...
The difference in the CO2adsorption capacities of different functionalized pillar-layered metal-organic frameworks (MOFs)
Gao, Xiang-Jing,Zheng, He-Gen
supporting information, p. 9310 - 9316 (2021/07/12)
The excessive use of fossil energy has c...
Self-assembly of 3,6-bis(4-triazolyl)pyridazine ligands with copper(I) and silver(I) ions: Time-dependant 2D-NOESY and ultracentrifuge measurements
Happ, Bobby,Pavlov, Georges M.,Altuntas, Esra,Friebe, Christian,Hager, Martin D.,Winter, Andreas,Goerls, Helmar,Guenther, Wolfgang,Schubert, Ulrich S.
scheme or table, p. 873 - 880 (2011/10/08)
Two 3,6-bis(R-1H-1,2,3-triazol-4-yl)pyri...
17973-86-3 Process route
-
-
1071030-18-6
3,6-dibromo-1,2,4,5-tetrazine
-
-
75-20-7
calcium carbide
-
-
17973-86-3
3,6-dibromopyridazine
| Conditions | Yield |
|---|---|
|
With
water;
In
1,4-dioxane;
at 100 ℃;
for 120h;
Sealed tube;
|
99% |
-
-
123-33-1
3,6-dihydroxypyridazine
-
-
17973-86-3
3,6-dibromopyridazine
| Conditions | Yield |
|---|---|
|
With
phosphorus pentabromide;
at 100 ℃;
|
50% |
|
With
ammonium hydroxide; phosphorus tribromide; PBr5; bromine;
|
17973-86-3 Upstream products
-
502-95-4
tetrahydropyridazine-3,6-dione
-
123-33-1
Maleic hydrazide
-
123-33-1
3,6-dihydroxypyridazine
-
204254-06-8
3,6-bis(4-pyridyl)-1,2-diazine
17973-86-3 Downstream products
-
17321-29-8
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-
91445-78-2
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-
88497-27-2
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-
695184-05-5
4-(6-bromo-pyridazin-3-yl)-1, 4-diazabicyclo [3.2. 2] nonane
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