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3430-21-5

Basic Information
CAS No.: 3430-21-5
Name: 2-Amino-5-bromo-3-methylpyridine
Article Data: 17
Molecular Structure:
Molecular Structure of 3430-21-5 (2-Amino-5-bromo-3-methylpyridine)
Formula: C6H7BrN2
Molecular Weight: 187.039
Synonyms: 5-bromo-3-methyl-pyridin-2-amine;5-bromo-3-methyl-1H-pyridin-2-amine;2-Amino-5-Bromo-3-picoline;2-Amina-5-bromo-3-picoline;5-bromo-3-methylpyridin-2-amine;2-amino-3-methyl-5-bromopyridine;5-Bromo-3-methyl-pyridin-2-ylamine;
EINECS: -0
Density: 1.593 g/cm3
Melting Point: 88-95 °C(lit.)
Boiling Point: 250 °C at 760 mmHg
Flash Point: 105 °C
Appearance: Yellow Solid
Hazard Symbols: IrritantXi
Risk Codes: 36/37/38
Safety: 26-36
PSA: 38.91000
LogP: 2.31590
Synthetic route
1603-40-3

3-methylpyridin-2-ylamine

3430-21-5

5-bromo-3-methyl-pyridin-2-ylamine

Conditions
ConditionsYield
Stage #1: 3-methylpyridin-2-ylamine With bromine In dichloromethane at 0 - 20℃; for 4.66667h;
Stage #2: With sodium hydroxide In dichloromethane; water pH=9;
100%
With 1-butyl-3-methylpyridinium tribromide at 20℃;97%
With bromine; iodine; acetic acid at 0 - 10℃; Reagent/catalyst; Temperature;95.2%
7463-30-1

N-(2-pyridyl-3-methyl)acetamide

3430-21-5

5-bromo-3-methyl-pyridin-2-ylamine

Conditions
ConditionsYield
Stage #1: N-(2-pyridyl-3-methyl)acetamide With bromine at 55℃; for 2.5h;
Stage #2: With sodium hydroxide In water for 0.5h; Temperature;
Stage #1: N-(2-pyridyl-3-methyl)acetamide With bromine at 55℃; for 2.5h;
Stage #2: With water; sodium hydroxide for 0.5h; Temperature;
3430-21-5

5-bromo-3-methyl-pyridin-2-ylamine

122-51-0

orthoformic acid triethyl ester

ethyl N-(5-bromo-3-methylpyridin-2-yl)carboximidate

Conditions
ConditionsYield
With toluene-4-sulfonic acid at 85℃; for 1h; Temperature;99%
3430-21-5

5-bromo-3-methyl-pyridin-2-ylamine

3430-18-0

2,5-dibromo-3-methylpyridine

Conditions
ConditionsYield
With hydrogen bromide; bromine; sodium nitrite In water at -15℃; for 3h;94%
With hydrogen bromide; bromine; sodium nitrite In water at -15 - 23℃; for 3h;94%
Stage #1: 5-bromo-3-methyl-pyridin-2-ylamine With hydrogen bromide; bromine at -15 - -10℃;
Stage #2: With sodium nitrite at 15 - 20℃; Temperature;
91.8%
100-39-0

benzyl bromide

3430-21-5

5-bromo-3-methyl-pyridin-2-ylamine

2-dibenzylamino-5-bromo-3-methylpyridine

Conditions
ConditionsYield
With sodium hydride In tetrahydrofuran; N,N-dimethyl acetamide at 0℃; for 16h;94%
3430-21-5

5-bromo-3-methyl-pyridin-2-ylamine

166266-19-9

2-amino-3-methyl-5-iodopyridine

Conditions
ConditionsYield
With copper(l) iodide; 2,3-dimethyl-2,3-diaminobutane; sodium iodide In 1,4-dioxane at 110℃;93%
38202-27-6

ethyl O-(2-mesitylenesulfonyl)acetohydroxamate

3430-21-5

5-bromo-3-methyl-pyridin-2-ylamine

5-bromo-3-methyl-1λ4-pyridine-1,2-diamine 2,4,6-trimethylbenzenesulfonate

Conditions
ConditionsYield
Stage #1: ethyl O-(2-mesitylenesulfonyl)acetohydroxamate With perchloric acid In 1,4-dioxane at 0 - 20℃; for 0.5h;
Stage #2: 5-bromo-3-methyl-pyridin-2-ylamine In dichloromethane at 0 - 20℃; for 1h;
93%
79424-03-6

ethyl 4,4,4-trifluoro-2-butynate

3430-21-5

5-bromo-3-methyl-pyridin-2-ylamine

7-bromo-9-methyl-4-trifluoromethylpyrido[1,2-a]pyrimidin-2-one

Conditions
ConditionsYield
In ethanol at 20℃; for 7h; Inert atmosphere;85%
3430-21-5

5-bromo-3-methyl-pyridin-2-ylamine

149-73-5

trimethyl orthoformate

(E)-(ethyl N-(5-bromo-3-methylpyridin-2-yl)carboximidate)

Conditions
ConditionsYield
With toluene-4-sulfonic acid In dichloromethane for 16h; Reflux; Industrial scale;84.4%
3430-21-5

5-bromo-3-methyl-pyridin-2-ylamine

89488-30-2

5-bromo-2-hydroxy-3-methyl pyridine

Conditions
ConditionsYield
With sodium nitrite In dichloromethane; sulfuric acid; water84%
With sulfuric acid; sodium nitrite In water at 0 - 20℃; for 1.5h;84%
With sulfuric acid; water; sodium nitrite at 0 - 20℃; for 0.5h;
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Chemistry

Molecular Structure of 2-Amino-5-bromo-3-methylpyridine (CAS NO.3430-21-5):

IUPAC Name: 5-bromo-3-methylpyridin-2-amine 
Empirical Formula: C6H7BrN2
Molecular Weight: 187.0372
H bond acceptors: 2
H bond donors: 2
Freely Rotating Bonds: 0
Polar Surface Area: 16.13 Å2
Index of Refraction: 1.617
Molar Refractivity: 41.09 cm3
Molar Volume: 117.3 cm3
Surface Tension: 52 dyne/cm
Density: 1.593 g/cm3
Flash Point: 105 °C
Enthalpy of Vaporization: 48.72 kJ/mol
Boiling Point: 250 °C at 760 mmHg
Vapour Pressure: 0.0222 mmHg at 25°C
Melting point: 88-95 °C(lit.)
Sensitive: Hygroscopic
BRN: 386426
InChI
InChI=1/C6H7BrN2/c1-4-2-5(7)3-9-6(4)8/h2-3H,1H3,(H2,8,9)
Smiles
n1c(c(C)cc(c1)Br)N
Product Categories: Pyridine; Amines and Anilines; Heterocycles; Pyridines, Pyrimidines, Purines and Pteredines; Amines; Pyridines; Heterocyclic Compounds; Chemical Amines; Anilines, Amides & Amines; Bromine Compounds; Miscellaneous Compounds; Bromopyridines; Halopyridines; Bases & Related Reagents; Heterocyclic; Nucleotides; Boronic Acid; C6Heterocyclic Building Blocks; Halogenated Heterocycles; Heterocyclic Building Blocks

Safety Profile

Hazard Codes oF 2-Amino-5-bromo-3-methylpyridine (CAS NO.3430-21-5): XiIrritant
Risk Statements: 36/37/38
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36:Wear suitable protective clothing.
WGK Germany: 3
Hazard Note: Irritant
HazardClass: Irritant

Specification

  2-Amino-5-bromo-3-methylpyridine , with CAS number of 3430-21-5, can be called 2-pyridinamine, 5-bromo-3-methyl- ; 5-Bromo-3-methylpyridin-2-amine . It is a yellow solid.