Product Name

  • Name

    5-Bromo-2-methyl-3-nitropyridine

  • EINECS 200-258-5
  • CAS No. 911434-05-4
  • Article Data24
  • CAS DataBase
  • Density 1.709 g/cm3
  • Solubility
  • Melting Point 38.0 to 42.0 °C
  • Formula C6H5BrN2O2
  • Boiling Point 252.6 °C at 760 mmHg
  • Molecular Weight 217.022
  • Flash Point 106.6 °C
  • Transport Information
  • Appearance
  • Safety
  • Risk Codes 22
  • Molecular Structure Molecular Structure of 911434-05-4 (5-Bromo-2-methyl-3-nitropyridine)
  • Hazard Symbols Xn
  • Synonyms 5-Bromo-2-methyl-3-nitropyridine;5-Bromo-3-nitropicoline;5-Bromo-2-methyl-3-nitrop...;5-Bromo-3-nitro-2-picoline;5-broMo-2-Methyl-3-n;Pyridine,5-broMo-2-Methyl-3-nitro-
  • PSA 58.71000
  • LogP 2.58390

Synthetic route

2-(5-bromo-3-nitro-pyridin-2-yl)-malonic acid diethyl ester
911434-04-3

2-(5-bromo-3-nitro-pyridin-2-yl)-malonic acid diethyl ester

5-bromo-2-methyl-3-nitropyridine
911434-05-4

5-bromo-2-methyl-3-nitropyridine

Conditions
ConditionsYield
With hydrogenchloride; water for 5h; Heating / reflux;96%
With hydrogenchloride In water Reflux;95%
With hydrogenchloride; water for 5h; Reflux;89.7%
5-bromo-2-chloro-3-nitropyridine
67443-38-3

5-bromo-2-chloro-3-nitropyridine

diethyl malonate
105-53-3

diethyl malonate

5-bromo-2-methyl-3-nitropyridine
911434-05-4

5-bromo-2-methyl-3-nitropyridine

Conditions
ConditionsYield
Stage #1: 5-bromo-2-chloro-3-nitropyridine; diethyl malonate With sodium hydride In tetrahydrofuran at 20℃; for 3.5h;
Stage #2: With hydrogenchloride; water Heating / reflux;
Stage #3: With water; sodium carbonate pH=9;
63.3%
Stage #1: 5-bromo-2-chloro-3-nitropyridine; diethyl malonate With sodium hydride In tetrahydrofuran at 20℃; for 3.5h;
Stage #2: With hydrogenchloride; water Heating / reflux;
Stage #3: With sodium carbonate pH=9;
63.3%
Stage #1: 5-bromo-2-chloro-3-nitropyridine; diethyl malonate With sodium hydride In tetrahydrofuran at 20℃; for 3.5h;
Stage #2: With hydrogenchloride; water Heating / reflux;
Stage #3: With water; sodium carbonate pH=9;
63.3%
Stage #1: diethyl malonate With sodium hydride In N,N-dimethyl-formamide; mineral oil at 20℃; for 0.333333h;
Stage #2: 5-bromo-2-chloro-3-nitropyridine In N,N-dimethyl-formamide; mineral oil at 20 - 40℃; for 1.5h;
Stage #3: With hydrogenchloride In water at 100℃; for 13h;
Stage #1: diethyl malonate With sodium hydride In N,N-dimethyl-formamide; mineral oil at 20℃;
Stage #2: 5-bromo-2-chloro-3-nitropyridine at 20 - 40℃; for 1.5h;
5-bromo-2-chloro-3-nitropyridine
67443-38-3

5-bromo-2-chloro-3-nitropyridine

5-bromo-2-methyl-3-nitropyridine
911434-05-4

5-bromo-2-methyl-3-nitropyridine

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: sodium hydride / N,N-dimethyl-formamide / 40 °C / Inert atmosphere
2: hydrogenchloride / water / 110 °C / Inert atmosphere
View Scheme
Multi-step reaction with 2 steps
1.1: sodium hydride / N,N-dimethyl-formamide / 0 - 20 °C
1.2: 2 h / 100 °C
2.1: hydrogenchloride; water / 18 h / Reflux
2.2: 0 °C
View Scheme
Multi-step reaction with 2 steps
1.1: sodium hydride / N,N-dimethyl-formamide / 0.5 h / 0 - 20 °C
1.2: 2 h / 100 °C
2.1: hydrogenchloride; water / 18 h / Reflux
2.2: 0 °C
View Scheme
5-bromo-2-methyl-3-nitropyridine
911434-05-4

5-bromo-2-methyl-3-nitropyridine

N,N-dimethyl-formamide dimethyl acetal
4637-24-5

N,N-dimethyl-formamide dimethyl acetal

(E)-2-(5-bromo-3-nitropyridin-2-yl)-N,N-dimethylethen-1-amine
1229457-88-8

(E)-2-(5-bromo-3-nitropyridin-2-yl)-N,N-dimethylethen-1-amine

Conditions
ConditionsYield
In N,N-dimethyl-formamide at 90℃; for 4h;98%
In N,N-dimethyl-formamide at 90℃; for 4h;76%
In N,N-dimethyl-formamide at 20 - 90℃; for 7.5h; Large scale;
5-bromo-2-methyl-3-nitropyridine
911434-05-4

5-bromo-2-methyl-3-nitropyridine

4-((4-methylpiperazin-1-yl)methyl)-3-(trifluoromethyl)benzamide

4-((4-methylpiperazin-1-yl)methyl)-3-(trifluoromethyl)benzamide

N-(6-methyl-5-nitropyridin-3-yl)-4-((4-methylpiperazin-1-yl)methyl)-3-(trifluoromethyl)benzamide

N-(6-methyl-5-nitropyridin-3-yl)-4-((4-methylpiperazin-1-yl)methyl)-3-(trifluoromethyl)benzamide

Conditions
ConditionsYield
With potassium carbonate; rac-diaminocyclohexane; copper(I) bromide In toluene at 90 - 100℃; Reagent/catalyst; Solvent; Inert atmosphere;96.3%
5-bromo-2-methyl-3-nitropyridine
911434-05-4

5-bromo-2-methyl-3-nitropyridine

N,N-dimethyl-formamide dimethyl acetal
4637-24-5

N,N-dimethyl-formamide dimethyl acetal

2-(5-bromo-3-nitropyridin-2-yl)-N,N-dimethylethenamine
1227628-14-9

2-(5-bromo-3-nitropyridin-2-yl)-N,N-dimethylethenamine

Conditions
ConditionsYield
In N,N-dimethyl-formamide at 90℃; for 4.25h; Inert atmosphere;95.2%
In N,N-dimethyl-formamide at 90℃; for 0.25h;95.2%
In N,N-dimethyl-formamide at 10℃; for 5h;
In N,N-dimethyl-formamide at 100℃; for 1h;
tert-butyl 4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)piperidine-1-carboxylate
877399-74-1

tert-butyl 4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)piperidine-1-carboxylate

5-bromo-2-methyl-3-nitropyridine
911434-05-4

5-bromo-2-methyl-3-nitropyridine

tert-butyl 4-[4-(6-methyl-5-nitropyridin-3-yl)-1H-pyrazol-1-yl]piperidine-1-carboxylate
1229457-95-7

tert-butyl 4-[4-(6-methyl-5-nitropyridin-3-yl)-1H-pyrazol-1-yl]piperidine-1-carboxylate

Conditions
ConditionsYield
Stage #1: 5-bromo-2-methyl-3-nitropyridine; tetrakis(triphenylphosphine) palladium(0) In 1,2-dimethoxyethane at 20℃; for 0.333333h;
Stage #2: tert-butyl 4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)piperidine-1-carboxylate With potassium carbonate In 1,2-dimethoxyethane; isopropyl alcohol at 20 - 85℃;
95%
(4,4,5,5-tetramethyl-2-[4-(methylsulfonyl)phenyl])-1,3,2-dioxaborolane
603143-27-7

(4,4,5,5-tetramethyl-2-[4-(methylsulfonyl)phenyl])-1,3,2-dioxaborolane

5-bromo-2-methyl-3-nitropyridine
911434-05-4

5-bromo-2-methyl-3-nitropyridine

2-methyl-3-nitro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine
1353715-51-1

2-methyl-3-nitro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine

Conditions
ConditionsYield
With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; potassium acetate In 1,4-dioxane at 80℃; for 12h; Inert atmosphere;94%
5-bromo-2-methyl-3-nitropyridine
911434-05-4

5-bromo-2-methyl-3-nitropyridine

trimethylsilylacetylene
1066-54-2

trimethylsilylacetylene

2-methyl-3-nitro-5-[(trimethylsilyl)ethynyl]pyridine
1228962-69-3

2-methyl-3-nitro-5-[(trimethylsilyl)ethynyl]pyridine

Conditions
ConditionsYield
With triethylamine; bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide at 80℃; for 4h;91%
N,N-Dimethylpropargylamin
7223-38-3

N,N-Dimethylpropargylamin

5-bromo-2-methyl-3-nitropyridine
911434-05-4

5-bromo-2-methyl-3-nitropyridine

N,N-dimethyl-3-(6-methyl-5-nitropyridin-3-yl)prop-2-yn-1-amine
1286218-46-9

N,N-dimethyl-3-(6-methyl-5-nitropyridin-3-yl)prop-2-yn-1-amine

Conditions
ConditionsYield
With diethylamine; bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide In N,N-dimethyl-formamide at 20℃; for 15h; Product distribution / selectivity;91%
With bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; diethylamine at 20℃; Darkness; Reflux;91%
5-bromo-2-methyl-3-nitropyridine
911434-05-4

5-bromo-2-methyl-3-nitropyridine

5-bromo-2-methylpyridin-3-ylamine
914358-73-9

5-bromo-2-methylpyridin-3-ylamine

Conditions
ConditionsYield
With hydrogenchloride; iron In methanol; water for 2h; Reflux;90%
With iron; ammonium chloride In ethanol; water at 90℃; for 0.666667h;90%
With iron; ammonium chloride In ethanol; water at 90℃; for 0.666667h;90%
5-bromo-2-methyl-3-nitropyridine
911434-05-4

5-bromo-2-methyl-3-nitropyridine

N-tert-Butoxycarbonyl-1-amino-3-propyne
92136-39-5

N-tert-Butoxycarbonyl-1-amino-3-propyne

tert-butyl [3-(6-methyl-5-nitropyridin-3-yl)prop-2-yn-1-yl]carbamate
1228962-84-2

tert-butyl [3-(6-methyl-5-nitropyridin-3-yl)prop-2-yn-1-yl]carbamate

Conditions
ConditionsYield
With triethylamine; bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide at 70℃; for 2.5h; Inert atmosphere;79%
1-methyl-piperazine
109-01-3

1-methyl-piperazine

5-bromo-2-methyl-3-nitropyridine
911434-05-4

5-bromo-2-methyl-3-nitropyridine

1-methyl-4-(6-methyl-5-nitropyridin-3-yl)piperazine
1228962-94-4

1-methyl-4-(6-methyl-5-nitropyridin-3-yl)piperazine

Conditions
ConditionsYield
With caesium carbonate; 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene; bis(dibenzylideneacetone)-palladium(0) In 1,4-dioxane at 150℃; for 22h; sealed tube; Inert atmosphere;71%
5-bromo-2-methyl-3-nitropyridine
911434-05-4

5-bromo-2-methyl-3-nitropyridine

C16H27BO

C16H27BO

5-(2-(cyclohex-3-en-1-yl)ethyl)-2-methyl-3-nitropyridine

5-(2-(cyclohex-3-en-1-yl)ethyl)-2-methyl-3-nitropyridine

Conditions
ConditionsYield
With dichloro[1,1'-bis(di-t-butylphosphino)ferrocene]palladium(II); triethylamine In water at 45℃; Suzuki-Miyaura Coupling; Inert atmosphere; Schlenk technique; Sealed tube;67%
5-bromo-2-methyl-3-nitropyridine
911434-05-4

5-bromo-2-methyl-3-nitropyridine

bis(pinacol)diborane
73183-34-3

bis(pinacol)diborane

2-methyl-3-nitro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine
1353715-51-1

2-methyl-3-nitro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine

Conditions
ConditionsYield
With potassium acetate; (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride In 1,4-dioxane at 100℃; for 1.5h; Microwave irradiation;66%
With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; potassium acetate In 1,4-dioxane at 100℃; for 6h; Inert atmosphere;
5-bromo-2-methyl-3-nitropyridine
911434-05-4

5-bromo-2-methyl-3-nitropyridine

C14H27BO2

C14H27BO2

5-(2-(t-butoxy)ethyl)-2-methyl-3-nitropyridine

5-(2-(t-butoxy)ethyl)-2-methyl-3-nitropyridine

Conditions
ConditionsYield
With dichloro[1,1'-bis(di-t-butylphosphino)ferrocene]palladium(II); triethylamine In water at 45℃; Suzuki-Miyaura Coupling; Inert atmosphere; Schlenk technique; Sealed tube;64%
5-bromo-2-methyl-3-nitropyridine
911434-05-4

5-bromo-2-methyl-3-nitropyridine

tert-butyl 3,3-dimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,6-dihydropyridine-1-carboxylate
1228962-22-8

tert-butyl 3,3-dimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,6-dihydropyridine-1-carboxylate

tert-butyl 3',3',6-trimethyl-5-nitro-3',6'-dihydro-3,4'-bipyridine-1'(2'H)-carboxylate
1228962-23-9

tert-butyl 3',3',6-trimethyl-5-nitro-3',6'-dihydro-3,4'-bipyridine-1'(2'H)-carboxylate

Conditions
ConditionsYield
With potassium phosphate; tetrakis(triphenylphosphine) palladium(0) In 1,4-dioxane; water at 80℃; for 24h; Inert atmosphere;60%
5-bromo-2-methyl-3-nitropyridine
911434-05-4

5-bromo-2-methyl-3-nitropyridine

N,N-dimethyl-formamide dimethyl acetal
4637-24-5

N,N-dimethyl-formamide dimethyl acetal

6-bromo-1H-pyrrolo[3,2-b]pyrridine
944937-53-5

6-bromo-1H-pyrrolo[3,2-b]pyrridine

Conditions
ConditionsYield
Stage #1: 5-bromo-2-methyl-3-nitropyridine; N,N-dimethyl-formamide dimethyl acetal In N,N-dimethyl-formamide at 100℃; for 1h;
Stage #2: With iron; acetic acid at 100℃; for 20h; Inert atmosphere;
60%
1-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl )-1,2,3,6-tetrahydropyridine
454482-11-2

1-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl )-1,2,3,6-tetrahydropyridine

5-bromo-2-methyl-3-nitropyridine
911434-05-4

5-bromo-2-methyl-3-nitropyridine

C12H15N3O2

C12H15N3O2

Conditions
ConditionsYield
With potassium phosphate; tetrakis(triphenylphosphine) palladium(0) In 1,4-dioxane; water at 80℃; Inert atmosphere;56%
5-bromo-2-methyl-3-nitropyridine
911434-05-4

5-bromo-2-methyl-3-nitropyridine

tert-butyl 4-methylidenepiperidine-1-carboxylate
159635-49-1

tert-butyl 4-methylidenepiperidine-1-carboxylate

tert-butyl 4-[(6-methyl-5-nitro-3-pyridyl)methylene]piperidine-1-carboxylate

tert-butyl 4-[(6-methyl-5-nitro-3-pyridyl)methylene]piperidine-1-carboxylate

Conditions
ConditionsYield
With potassium acetate; palladium diacetate; triphenylphosphine In N,N-dimethyl-formamide at 100℃; Sealed tube;42%
5-bromo-2-methyl-3-nitropyridine
911434-05-4

5-bromo-2-methyl-3-nitropyridine

3-ethynyloxetan-3-ol
1352492-38-6

3-ethynyloxetan-3-ol

3-[2-(6-methyl-5-nitro-3-pyridyl)ethynyl]oxetan-3-ol

3-[2-(6-methyl-5-nitro-3-pyridyl)ethynyl]oxetan-3-ol

Conditions
ConditionsYield
With bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; diethylamine at 20℃;40%
5-bromo-2-methyl-3-nitropyridine
911434-05-4

5-bromo-2-methyl-3-nitropyridine

vinyl magnesium bromide
1826-67-1

vinyl magnesium bromide

4-bromo-7-methyl-1H-pyrrolo[2,3-c]pyridine

4-bromo-7-methyl-1H-pyrrolo[2,3-c]pyridine

Conditions
ConditionsYield
In tetrahydrofuran at -50 - -40℃; for 0.5h; Inert atmosphere;36.6%
In tetrahydrofuran at -50 - -40℃; for 0.5h; Inert atmosphere;36.6%
5-bromo-2-methyl-3-nitropyridine
911434-05-4

5-bromo-2-methyl-3-nitropyridine

(2,2'-bipyride-kN1,kN1')(1,1,1-trifluoromethanethiolato-kS)-copper
1413732-47-4

(2,2'-bipyride-kN1,kN1')(1,1,1-trifluoromethanethiolato-kS)-copper

2-methyl-3-nitro-5-[(trifluoromethyl)thio]pyridine

2-methyl-3-nitro-5-[(trifluoromethyl)thio]pyridine

Conditions
ConditionsYield
In 1,4-dioxane at 110℃; for 15h; Inert atmosphere;23%
5-bromo-2-methyl-3-nitropyridine
911434-05-4

5-bromo-2-methyl-3-nitropyridine

5-bromo-3-nitropicolinic acid
954240-89-2

5-bromo-3-nitropicolinic acid

Conditions
ConditionsYield
With potassium permanganate In acetonitrile at 80 - 100℃;2.4%
5-ethynylpyrimidine-2-amine
857265-74-8

5-ethynylpyrimidine-2-amine

5-bromo-2-methyl-3-nitropyridine
911434-05-4

5-bromo-2-methyl-3-nitropyridine

5-(6-methyl-5-nitro-pyridin-3-ylethynyl)-pyrimidin-2-ylamine
911434-06-5

5-(6-methyl-5-nitro-pyridin-3-ylethynyl)-pyrimidin-2-ylamine

Conditions
ConditionsYield
With triethylamine; bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide In N,N-dimethyl-formamide at 60℃; for 3h;
5-bromo-2-methyl-3-nitropyridine
911434-05-4

5-bromo-2-methyl-3-nitropyridine

N-(6-(5-(4-methoxyphenylsulfonamido)-6-methylpyridin-3-yl)benzo[d]thiazol-2-yl)acetamide
1112980-38-7

N-(6-(5-(4-methoxyphenylsulfonamido)-6-methylpyridin-3-yl)benzo[d]thiazol-2-yl)acetamide

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: water; iron; acetic acid / 1.25 h / 20 °C / Inert atmosphere; Cooling
2: dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2; potassium carbonate / 1,2-dimethoxyethane; water / 1.33 h / 100 °C / Inert atmosphere
3: pyridine; dmap / tetrahydrofuran / 6 h / 65 °C / Inert atmosphere
View Scheme
5-bromo-2-methyl-3-nitropyridine
911434-05-4

5-bromo-2-methyl-3-nitropyridine

6-bromo-1H-pyrazolo[4,3-b]pyridine
1150617-54-1

6-bromo-1H-pyrazolo[4,3-b]pyridine

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: hydrogenchloride; iron / ethanol; water / 40 °C / Reflux
2.1: triethylamine / dichloromethane / 0 - 20 °C
3.1: acetic anhydride; potassium acetate; acetic acid / chloroform / 0.25 h / 20 °C
3.2: 40 - 60 °C
3.3: 0 - 20 °C
View Scheme
Multi-step reaction with 3 steps
1: hydrogenchloride; iron / water; industrial methylated spirit / 2 h / Reflux
2: triethylamine / dichloromethane / 90 h / 20 °C
3: acetic anhydride; potassium acetate; isopentyl nitrite / chloroform; acetic acid / 20 - 60 °C
View Scheme
Multi-step reaction with 4 steps
1.1: acetic acid; iron / 2 h / Reflux
2.1: triethylamine / dichloromethane / 18 h
2.2: 1 h
3.1: acetic anhydride; potassium acetate; acetic acid; isopentyl nitrite / toluene / 3 h / Reflux
4.1: potassium carbonate; methanol / 1 h / Reflux
View Scheme
5-bromo-2-methyl-3-nitropyridine
911434-05-4

5-bromo-2-methyl-3-nitropyridine

N-(5-bromo-2-methyl-pyridin-3-yl)-acetamide
1301214-71-0

N-(5-bromo-2-methyl-pyridin-3-yl)-acetamide

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: hydrogenchloride; iron / ethanol; water / 40 °C / Reflux
2: triethylamine / dichloromethane / 0 - 20 °C
View Scheme
Multi-step reaction with 2 steps
1: hydrogenchloride; iron / water; industrial methylated spirit / 2 h / Reflux
2: triethylamine / dichloromethane / 90 h / 20 °C
View Scheme
Multi-step reaction with 2 steps
1.1: acetic acid; iron / 2 h / Reflux
2.1: triethylamine / dichloromethane / 18 h
2.2: 1 h
View Scheme
5-bromo-2-methyl-3-nitropyridine
911434-05-4

5-bromo-2-methyl-3-nitropyridine

1H-pyrazolo[4,3-b]pyridine-6-carboxylic acid methyl ester
1301214-72-1

1H-pyrazolo[4,3-b]pyridine-6-carboxylic acid methyl ester

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: hydrogenchloride; iron / ethanol; water / 40 °C / Reflux
2.1: triethylamine / dichloromethane / 0 - 20 °C
3.1: acetic anhydride; potassium acetate; acetic acid / chloroform / 0.25 h / 20 °C
3.2: 40 - 60 °C
3.3: 0 - 20 °C
4.1: triethylamine / 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; palladium dichloride / acetonitrile / 18 h / 100 °C / 15001.5 Torr
View Scheme
Multi-step reaction with 4 steps
1: hydrogenchloride; iron / water; industrial methylated spirit / 2 h / Reflux
2: triethylamine / dichloromethane / 90 h / 20 °C
3: acetic anhydride; potassium acetate; isopentyl nitrite / chloroform; acetic acid / 20 - 60 °C
4: triethylamine / (S)-(1,1'-binaphthalene)-2,2'-diylbis(diphenylphosphine); palladium dichloride / acetonitrile / 18 h / 100 °C / 15001.5 Torr
View Scheme
Multi-step reaction with 4 steps
1: iron; ammonium chloride / water; ethanol / 0.17 h / 90 °C
2: acetic acid / 20 °C
3: acetic anhydride; isopentyl nitrite; potassium acetate / toluene / 90 °C / Inert atmosphere
4: triethylamine; bis-triphenylphosphine-palladium(II) chloride / 100 °C / 7600.51 Torr
View Scheme
5-bromo-2-methyl-3-nitropyridine
911434-05-4

5-bromo-2-methyl-3-nitropyridine

1H-pyrazolo[4,3-b] pyridine-6-carboxylic acid
1256807-59-6

1H-pyrazolo[4,3-b] pyridine-6-carboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1.1: hydrogenchloride; iron / ethanol; water / 40 °C / Reflux
2.1: triethylamine / dichloromethane / 0 - 20 °C
3.1: acetic anhydride; potassium acetate; acetic acid / chloroform / 0.25 h / 20 °C
3.2: 40 - 60 °C
3.3: 0 - 20 °C
4.1: triethylamine / 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; palladium dichloride / acetonitrile / 18 h / 100 °C / 15001.5 Torr
5.1: sodium hydroxide; water / methanol / 0 - 20 °C
5.2: pH 5 - 6
View Scheme
Multi-step reaction with 5 steps
1.1: hydrogenchloride; iron / water; industrial methylated spirit / 2 h / Reflux
2.1: triethylamine / dichloromethane / 90 h / 20 °C
3.1: acetic anhydride; potassium acetate; isopentyl nitrite / chloroform; acetic acid / 20 - 60 °C
4.1: triethylamine / (S)-(1,1'-binaphthalene)-2,2'-diylbis(diphenylphosphine); palladium dichloride / acetonitrile / 18 h / 100 °C / 15001.5 Torr
5.1: sodium hydroxide; water / methanol / 18 h / 20 °C
5.2: pH 5 - 6
View Scheme
Multi-step reaction with 5 steps
1: iron; ammonium chloride / water; ethanol / 0.17 h / 90 °C
2: acetic acid / 20 °C
3: acetic anhydride; isopentyl nitrite; potassium acetate / toluene / 90 °C / Inert atmosphere
4: triethylamine; bis-triphenylphosphine-palladium(II) chloride / 100 °C / 7600.51 Torr
5: water; sodium hydroxide / 20 °C
View Scheme

5-Bromo-2-methyl-3-nitropyridine Specification

The 5-Bromo-2-methyl-3-nitropyridine, with the CAS registry number 911434-05-4, is also called pyridine, 5-bromo-2-methyl-3-nitro-. It should be stored at dry and cool environment. And the molecular formula of the chemical is C6H5BrN2O2.

The characteristics of 5-Bromo-2-methyl-3-nitropyridine are as followings: (1)ACD/LogP: 1.85; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 1.85; (4)ACD/LogD (pH 7.4): 1.85; (5)#H bond acceptors: 4; (6)#H bond donors: 0; (7)#Freely Rotating Bonds: 1; (8)Polar Surface Area: 58.71 Å2; (9)Index of Refraction: 1.599; (10)Molar Refractivity: 43.4 cm3; (11)Molar Volume: 126.9 cm3; (12)Polarizability: 17.2×10-24cm3; (13)Surface Tension: 54.5 dyne/cm; (14)Density: 1.709 g/cm3; (15)Flash Point: 106.6 °C; (16)Enthalpy of Vaporization: 47.02 kJ/mol; (17)Boiling Point: 252.6 °C at 760 mmHg; (18)Vapour Pressure: 0.0305 mmHg at 25°C.

Addtionally, the following datas could be converted into the molecular structure:
(1)SMILES: Cc1c(cc(cn1)Br)[N+](=O)[O-]
(2)InChI: InChI=1/C6H5BrN2O2/c1-4-6(9(10)11)2-5(7)3-8-4/h2-3H,1H3
(3)InChIKey: FZZLWWNOYMHSIS-UHFFFAOYAD

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