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| CAS No.: | 58530-53-3 |
|---|---|
| Name: | 2,4-Dibromopyridine |
| Article Data: | 10 |
| Molecular Structure: | |
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| Formula: | C5H3Br2N |
| Molecular Weight: | 236.894 |
| Synonyms: | 2,4-Dibrompyridin; |
| EINECS: | -0 |
| Density: | 2.059 g/cm3 |
| Melting Point: | 38-40 °C |
| Boiling Point: | 251.668 °C at 760 mmHg |
| Flash Point: | 106.005 °C |
| Appearance: | light yellow needles |
| Hazard Symbols: |
 Xi
|
| Risk Codes: | 20/21/22-36/37/38 |
| Safety: | 26-36/37/39-36 |
| PSA: | 12.89000 |
| LogP: | 2.60660 |
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- 894852-01-87-BROMO-2,2-DIMETHYL-2H-PYRIDO[3,2-B][1,4]OXAZIN-3(4H)-ONE
| Conditions | Yield |
|---|---|
| With phosphorus(V) oxybromide at 125℃; for 4.5h; | A 90% B 9% |
| With phosphorus(V) oxybromide at 125℃; for 4.5h; | A 85% B 12% |
- 117196-08-4
2,4-dibromopyridine N-oxide
- 58530-53-3
2,4-dibromopyridine
| Conditions | Yield |
|---|---|
| With Acetyl bromide In acetic acid at 130℃; | 80% |
- 52092-43-0
2-bromo-4-nitropyridine N-oxide
- 58530-53-3
2,4-dibromopyridine
| Conditions | Yield |
|---|---|
| With Acetyl bromide In acetic acid at 130℃; for 16h; | 71% |
| Multi-step reaction with 2 steps 1: FeSO4; concentrated aqueous NH3 2: sodium nitrite; aqueous sulfuric acid; copper (II)-sulfate; potassium bromide / Diazotization.Reagens 4: Kupfer-Pulver; Reagens 5: Wasser View Scheme |
- 7598-35-8
2-bromo-4-aminopyridine
- 58530-53-3
2,4-dibromopyridine
| Conditions | Yield |
|---|---|
| With hydrogen bromide; bromine; sodium nitrite | 60% |
| With sulfuric acid; copper(II) sulfate; potassium bromide; sodium nitrite Diazotization.Reagens 4: Kupfer-Pulver; Reagens 5: Wasser; |
- 26452-80-2
2,4-dichloropyridine
- 58530-53-3
2,4-dibromopyridine
| Conditions | Yield |
|---|---|
| With trimethylsilyl bromide In various solvent(s) Heating; | 49% |
- 30766-03-1
4-bromo-2-picolinic acid
- 58530-53-3
2,4-dibromopyridine
| Conditions | Yield |
|---|---|
| With tert-butylhypochlorite; dichloromethane; oxygen; sodium hydrogencarbonate at 70℃; for 20h; Green chemistry; | 45% |
- 13534-89-9
2,3-dibromopyridine
- 58530-53-3
2,4-dibromopyridine
| Conditions | Yield |
|---|---|
| Stage #1: 2,3-dibromopyridine With 2,2,6,6-tetramethyl-piperidine; n-butyllithium; ZnCl2-N,N,N’,N’-tetramethylethylenediamine In tetrahydrofuran at 20℃; for 2h; Inert atmosphere; Stage #2: With water In tetrahydrofuran Inert atmosphere; regioselective reaction; | 25% |
| With bromine; tert.-butyl lithium; diisopropylamine 1.) THF, -60 deg C, 2.) -70 deg C, 4 h; Yield given. Multistep reaction; |
- 626-03-9
3-deazauracil
- 58530-53-3
2,4-dibromopyridine
| Conditions | Yield |
|---|---|
| With phosphorus(V) oxybromide at 130℃; |
| Conditions | Yield |
|---|---|
| With n-butyllithium; pentan-3-one 1) THF, -40 deg C, 15 min, 2) THF, -60 deg C, 15 min; Yield given. Multistep reaction. Yields of byproduct given; |
- 14305-17-0
2-bromopyridine-N-oxide
- 58530-53-3
2,4-dibromopyridine
| Conditions | Yield |
|---|---|
| Multi-step reaction with 3 steps 1: concentrated sulfuric acid; nitric acid 2: FeSO4; concentrated aqueous NH3 3: sodium nitrite; aqueous sulfuric acid; copper (II)-sulfate; potassium bromide / Diazotization.Reagens 4: Kupfer-Pulver; Reagens 5: Wasser View Scheme |
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Specification
The 2,4-Dibromopyridine, with the CAS registry number 58530-53-3, is also known as Pyridine, 2,4-dibromo-. It belongs to the product categories of Blocks; Bromides; Pyridines; Pyridine; Heterocyclic Series; Pharmacetical; Organohalides; Halides. This chemical's molecular formula is C5H3Br2N and molecular weight is 236.89. What's more, its IUPAC name is the same with its product name. It should be stored in a cool, dry and well-ventilated place.
Physical properties about 2,4-Dibromopyridine are: (1)ACD/LogP: 2.298; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 2.30; (4)ACD/LogD (pH 7.4): 2.30; (5)ACD/BCF (pH 5.5): 32.87; (6)ACD/BCF (pH 7.4): 32.87; (7)ACD/KOC (pH 5.5): 423.93; (8)ACD/KOC (pH 7.4): 423.93; (9)#H bond acceptors: 1; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 0; (12)Polar Surface Area: 12.89 Å2; (13)Index of Refraction: 1.607; (14)Molar Refractivity: 39.724 cm3; (15)Molar Volume: 115.027 cm3; (16) Polarizability: 15.748×10-24cm3; (17)Surface Tension: 47.776 dyne/cm; (18)Density: 2.059 g/cm3; (19)Flash Point: 106.005 °C; (20)Enthalpy of Vaporization: 46.921 kJ/mol; (21)Boiling Point: 251.668 °C at 760 mmHg; (22)Vapour Pressure: 0.032 mmHg at 25 °C.
When you are dealing with this chemical, you should be very careful. This chemical may cause inflammation to the skin or other mucous membranes. It is harmful by inhalation, in contact with skin and if swallowed. In addition, it is irritating to eyes, respiratory system and skin. Therefore, you should wear suitable protective clothing, gloves and eye/face protection. In case of contacting with eyes, you should rinse immediately with plenty of water and seek medical advice.
You can still convert the following datas into molecular structure:
(1) SMILES: c1cnc(cc1Br)Br
(2) InChI: InChI=1S/C5H3Br2N/c6-4-1-2-8-5(7)3-4/h1-3H
(3) InChIKey: PCMMSLVJMKQWMQ-UHFFFAOYSA-N