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2402-77-9

Basic Information
CAS No.: 2402-77-9
Name: 2,3-Dichloropyridine
Molecular Structure:
Molecular Structure of 2402-77-9 (2,3-Dichloropyridine)
Formula: C5H3Cl2N
Molecular Weight: 147.99
Synonyms: Pyridine, 2,3-dichloro-;2,3-Dichloro-pyridine;
EINECS: 219-281-8
Density: 1.388 g/cm3
Melting Point: 64-67 °C(lit.)
Boiling Point: 192.5 °C at 760 mmHg
Flash Point: 87.5 °C
Solubility: slightly soluble in water
Appearance: White to slightly beige crystalline powder
Hazard Symbols: HarmfulXn,IrritantXi
Risk Codes: 36/37/38-22
Safety: 26-36-37/39
Transport Information:
PSA: 12.89000
LogP: 2.38840
Synthetic route
14121-36-9

2,3,4,6-Tetrachloropyridine

2402-77-9

2,3-dichloro-pyridine

Conditions
ConditionsYield
With hydrogen; triethylamine; urea; citric acid In ethyl acetate at 50℃; under 7500.75 Torr; for 7h; Solvent; Temperature; Pressure; Reagent/catalyst; Autoclave;98.1%
6515-09-9

2,3,6-trichloropyridine

2402-77-9

2,3-dichloro-pyridine

Conditions
ConditionsYield
With carbonylhydridetris(triphenylphosphine)rhodium(I); hydrogen; triethylamine In methanol at 60℃; under 450045 Torr; Temperature; Solvent; Pressure; Autoclave;98%
With methanol; palladium 10% on activated carbon; 3-p-menthene at 60℃; for 4h; Temperature; Reagent/catalyst;95%
With hydrogen In methanol at 75℃; under 750.075 Torr; for 8h; Reagent/catalyst; Autoclave;95.3%
2402-78-0

2,6-dichloropyridine

A

2402-77-9

2,3-dichloro-pyridine

B

1513-65-1

2,6-difluoro pyridine

Conditions
ConditionsYield
In dimethyl sulfoxideA 96.3%
B n/a
6298-19-7

2-chloro-3-aminopyridine

2402-77-9

2,3-dichloro-pyridine

Conditions
ConditionsYield
Stage #1: 2-chloro-3-aminopyridine With hydrogenchloride; sodium nitrite In water at 5 - 15℃; for 0.75h;
Stage #2: With hydrogenchloride; aminosulfonic acid; copper(II) chloride dihydrate In water at 55 - 62℃; Product distribution / selectivity;
95%
With hydrogenchloride; thionyl chloride; nitric acid In water at 0 - 5℃;91%
With hydrogenchloride; sodium nitrite In water at -5 - 40℃; for 1h; Sandmeyer Reaction; Cooling with ice; Inert atmosphere;83%
13466-35-8

2-hydroxy-3-chloropyridine

2402-77-9

2,3-dichloro-pyridine

Conditions
ConditionsYield
With phosphorus pentachloride In 1,2-dichloro-ethane at 60 - 65℃; for 10h; Reagent/catalyst; Temperature; Solvent;94.9%
With phosphorus pentachloride In 1,2-dichloro-ethane at 60 - 65℃; for 10h; Reagent/catalyst; Temperature;94.9%
With trichlorophosphate In 1,2-dichloro-ethane; N,N-dimethyl-formamide Reflux;43g
452-58-4

2,3-Diaminopyridine

2402-77-9

2,3-dichloro-pyridine

Conditions
ConditionsYield
With hydrogenchloride; copper dichloride; sodium nitrite In water at 20 - 45℃; for 5h; Reagent/catalyst; Large scale;89.5%
6636-78-8

2-chloro-3-hydroxypyridine

2402-77-9

2,3-dichloro-pyridine

Conditions
ConditionsYield
With trichlorophosphate In N,N-dimethyl-formamide at 0 - 30℃; for 9h; Reagent/catalyst;88%
With chlorine In dichloromethane at 35 - 40℃; for 4h; Solvent; Temperature;126 g
With sulfolane; phosphorus pentachloride; trichlorophosphate at 150℃; for 6h; Reagent/catalyst;
628-13-7

pyridine hydrochloride

2402-77-9

2,3-dichloro-pyridine

Conditions
ConditionsYield
With pyridine; hydrogen In water at 40 - 60℃; under 2250.23 - 3750.38 Torr; Reagent/catalyst; Temperature; Pressure; Large scale;86.6%
With pyridine; hydrogen In water at 40 - 60℃; under 2250.23 - 3750.38 Torr; Temperature; Pressure; Reagent/catalyst; Large scale;86.6%
5470-18-8

2-Chloro-3-nitropyridine

2402-77-9

2,3-dichloro-pyridine

Conditions
ConditionsYield
With Dichlorophenylphosphine In various solvent(s) at 170℃; for 5h;81%
With sulfolane; phosphorus pentachloride; trichlorophosphate at 150℃; for 6h; Reagent/catalyst;

3-chloro-2-pyridinesulfonic acid

2402-77-9

2,3-dichloro-pyridine

Conditions
ConditionsYield
Stage #1: 3-chloro-2-pyridinesulfonic acid With hydrogenchloride; water In water at 103℃; for 5h;
Stage #2: With sodium chlorate for 5h; Temperature; Reflux;
80.3%
626-60-8

3-Chloropyridine

78948-09-1

acetyl hypofluorite

2402-77-9

2,3-dichloro-pyridine

Conditions
ConditionsYield
With dichloromethane80%
57266-69-0

3-chloropyridine-2-carboxylic acid

2402-77-9

2,3-dichloro-pyridine

Conditions
ConditionsYield
With tert-butylhypochlorite; dichloromethane; sodium hydrogencarbonate at 60℃; for 20h; Green chemistry;80%
With tert-butylhypochlorite; sodium carbonate; sodium chloride In dichloromethane at 30℃; for 20h; Schlenk technique;50%
177743-06-5

2-Ethoxy-3-chloropyridine

2402-77-9

2,3-dichloro-pyridine

Conditions
ConditionsYield
With N,N-dimethyl-formamide; trichlorophosphate at 95℃; for 12h;66%

2-Benzyloxy-3-chloro-pyridine

2402-77-9

2,3-dichloro-pyridine

Conditions
ConditionsYield
With N,N-dimethyl-formamide; trichlorophosphate at 95℃; for 12h;66%
Pyridin-Palladium(II)-chlorid-Komplex

Pyridin-Palladium(II)-chlorid-Komplex

A

109-09-1

2-chloropyridine

B

2402-77-9

2,3-dichloro-pyridine

C

16063-70-0

2,3,5-trichloropyridine

Conditions
ConditionsYield
With chlorine In cyclohexane at 75℃; for 1h;A 9%
B 62%
C 4.5%
626-60-8

3-Chloropyridine

2402-77-9

2,3-dichloro-pyridine

Conditions
ConditionsYield
Stage #1: 3-Chloropyridine With n-butyllithium In hexane at -60℃; for 1h;
Stage #2: With hexachloroethane In tetrahydrofuran; hexane at -60 - 20℃;
60%
Multi-step reaction with 3 steps
1: 3-chloro-benzenecarboperoxoic acid / chloroform / 20 °C
2: 30 h / Reflux
3: trichlorophosphate / 6 h / 100 °C
View Scheme
13472-84-9

2-methoxy,3-chloropyridine

2402-77-9

2,3-dichloro-pyridine

Conditions
ConditionsYield
With trichlorophosphate In N,N-dimethyl-formamide at 95℃; for 12h;59%
With N,N-dimethyl-formamide; trichlorophosphate at 95℃; for 12h;59%
41667-95-2

5,6-dichloronicotinic acid

2402-77-9

2,3-dichloro-pyridine

Conditions
ConditionsYield
at 150℃; bei vorsichtiger Destillation unter vermindertem Druck;
1851-22-5

3-chloropyridine-N-oxide

A

16110-09-1

2,5 dichloropyridine

B

2402-77-9

2,3-dichloro-pyridine

C

55934-00-4

3,4-dichloropyridine

Conditions
ConditionsYield
With trichlorophosphate at 110℃; for 2h; Yield given. Yields of byproduct given;
121983-37-7

2-Chloro-pyridine-3-diazonium; chloride

2402-77-9

2,3-dichloro-pyridine

Conditions
ConditionsYield
With hydrogenchloride; copper(II) oxide In n-BuCl; water at 55 - 62℃; Product distribution / selectivity;
With hydrogenchloride; copper dichloride In n-Butyl chloride; water at 60℃; for 1.5h; Product distribution / selectivity;
6298-19-7

2-chloro-3-aminopyridine

A

2402-77-9

2,3-dichloro-pyridine

B

69212-33-5

3,3'-dithiobis(2-chloropyridine)

C

6684-06-6

2-chloro-3-pyridinesulfonyl chloride

D

6602-56-8

2-chloropyridine-3-sulfonic acid

E

3,3'-sulfonylbis(2-chloropyridine)

Conditions
ConditionsYield
Stage #1: 2-chloro-3-aminopyridine With hydrogenchloride; acetic acid; sodium nitrite In water at 0℃; Sandmeyer reaction;
Stage #2: With sulfur dioxide; water; acetic acid; copper(l) chloride at 0℃; Sandmeyer reaction;
462-08-8

pyridin-3-ylamine

2402-77-9

2,3-dichloro-pyridine

Conditions
ConditionsYield
Stage #1: pyridin-3-ylamine With hydrogenchloride; iron(III) chloride; chlorine; sodium nitrite In water at -8 - 20℃;
Stage #2: With hydrogenchloride; copper(l) chloride In water at 60 - 70℃;
Multi-step reaction with 2 steps
1: iron(III) chloride; hydrogenchloride; chlorine / water / 25 °C
2: iron(III) chloride; sodium nitrite / water / 30 °C
View Scheme
Stage #1: pyridin-3-ylamine With hydrogenchloride; dihydrogen peroxide In water at 5℃; for 2h;
Stage #2: With sodium nitrite In water at -5℃; for 0.416667h;
Stage #3: With copper(l) chloride In dichloromethane; water at 15 - 30℃; for 1.33333h;
Multi-step reaction with 2 steps
1: dihydrogen peroxide / 1 h / 5 - 15 °C
2: copper(l) chloride; sodium nitrite / water / 0.5 h / 33 - 38 °C
View Scheme
49609-84-9

2-Chloronicotinoyl chloride

2402-77-9

2,3-dichloro-pyridine

Conditions
ConditionsYield
With oxalyl dichloride; palladium 10% on activated carbon In chlorobenzene at 380 - 395℃; for 1h; Time; Reagent/catalyst; Temperature; Solvent; Concentration; Inert atmosphere;43 %Spectr.
98-92-0

nicotinamide

2402-77-9

2,3-dichloro-pyridine

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: sodium hydroxide; sodium hypochlorite / 2 h / 10 - 95 °C
2: iron(III) chloride; hydrogenchloride; chlorine / water / 25 °C
3: iron(III) chloride; sodium nitrite / water / 30 °C
View Scheme
Multi-step reaction with 3 steps
1: sodium hypochlorite / water / 2.5 h / 0 - 100 °C
2: dihydrogen peroxide / 1 h / 5 - 15 °C
3: copper(l) chloride; sodium nitrite / water / 0.5 h / 33 - 38 °C
View Scheme
98273-80-4

2-acetyloxy-3-chloropyridine

2402-77-9

2,3-dichloro-pyridine

Conditions
ConditionsYield
With trichlorophosphate at 100℃; for 6h; Reagent/catalyst;
6515-09-9

2,3,6-trichloropyridine

A

626-60-8

3-Chloropyridine

B

2402-77-9

2,3-dichloro-pyridine

Conditions
ConditionsYield
With dichloro(pentamethylcyclopentadienyl)rhodium (III) dimer; hydrogen; triethylamine In isopropyl alcohol at 85℃; under 3750.38 Torr; for 3h;
6515-09-9

2,3,6-trichloropyridine

A

109-09-1

2-chloropyridine

B

2402-77-9

2,3-dichloro-pyridine

Conditions
ConditionsYield
With Wilkinson's catalyst; hydrogen; triethylamine In isopropyl alcohol at 85℃; under 3750.38 Torr; for 1h;
110-86-1

pyridine

A

2402-77-9

2,3-dichloro-pyridine

B

16063-70-0

2,3,5-trichloropyridine

Conditions
ConditionsYield
Stage #1: pyridine With iron(III) chloride; chlorine In tetrachloromethane Large scale;
Stage #2: With palladium on activated charcoal In tetrachloromethane; ethanol at 80℃; under 750.075 Torr; Reagent/catalyst; Solvent; Pressure; Temperature; Large scale;
A 8 kg
B 1840.8 kg
17747-43-2

3-pyridyl acetate

2402-77-9

2,3-dichloro-pyridine

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: chlorine / dichloromethane; water / 4 h / 20 - 30 °C
2: water / dichloromethane / 2 h / 35 - 40 °C
3: chlorine / dichloromethane / 4 h / 35 - 40 °C
View Scheme
2402-77-9

2,3-dichloro-pyridine

14264-16-5, 53996-95-5, 62075-39-2, 39716-73-9

bis(triphenylphosphine)nickel(II) chloride

680973-41-5

[NiCl(ClC5H3N)(P(C6H5)3)]2

Conditions
ConditionsYield
With Zn; azabis(isobutyronitrile) In tetrahydrofuran (Ar); stirring (25°C, 1 h); solvent removal, extracting (CH2Cl2), filtn., solvent removal, stirring (Et2O), filtn., recrystallization (CH2Cl2); elem. anal.;99%
2402-77-9

2,3-dichloro-pyridine

109-97-7

pyrrole

914457-19-5

3-chloro-2-(1H-pyrrol-1-yl)pyridine

Conditions
ConditionsYield
Stage #1: pyrrole With sodium hydride In N,N-dimethyl-formamide at 0 - 20℃; for 0.5h;
Stage #2: 2,3-dichloro-pyridine In N,N-dimethyl-formamide at 80℃; for 3h;
99%
2402-77-9

2,3-dichloro-pyridine

22841-92-5

(3-chloro-2-pyridyl)hydrazine

Conditions
ConditionsYield
With N-Methyldiethanolamine; hydrazine hydrate at 102 - 105℃; under 2250.23 - 3000.3 Torr; for 8h; Inert atmosphere; Autoclave; Large scale;98.12%
With hydrazine hydrate In ethanol for 25h; Reflux;97.6%
With hydrazine hydrate In ethanol for 25h; Reflux;96%
273-53-0

benzoxazole

2402-77-9

2,3-dichloro-pyridine

2-(2-chloropyridin-3-yl)benzo[d]oxazole

Conditions
ConditionsYield
With copper(l) iodide; potassium phosphate tribasic heptahydrate; palladium diacetate; nixantphos In N,N-dimethyl-formamide at 120℃; for 12h; Inert atmosphere;98%
2402-77-9

2,3-dichloro-pyridine

5142-75-6

tri(p-tolyl)bismuth

892482-36-9

3-chloro-2-(4-methylphenyl)pyridine

Conditions
ConditionsYield
With tetrakis(triphenylphosphine) palladium(0); caesium carbonate In N,N-dimethyl acetamide at 90℃; for 4h; Inert atmosphere; Schlenk technique; regioselective reaction;97%
2402-77-9

2,3-dichloro-pyridine

53976-65-1

2,3-dichloropyridine 1-oxide

Conditions
ConditionsYield
With trifluoromethylsulfonic anhydride; urea hydrogen peroxide adduct In dichloromethane at 10 - 20℃;96%
With 3-chloro-benzenecarboperoxoic acid In dichloromethane at 0 - 30℃; for 32h; Inert atmosphere;74%
With dihydrogen peroxide; acetic anhydride 1.)r.t., 5 h 2.)60-65 deg C, 30 h;
With urea hydrogen peroxide adduct; trifluoroacetic anhydride In dichloromethane at 0 - 20℃;11 g
2402-77-9

2,3-dichloro-pyridine

124-38-9

carbon dioxide

184416-84-0

2,3-dichloroisonicotinic acid

Conditions
ConditionsYield
Stage #1: 2,3-dichloro-pyridine With n-butyllithium; diisopropylamine In tetrahydrofuran; hexane at -75℃; for 2h;
Stage #2: carbon dioxide at -78℃;
96%
Stage #1: 2,3-dichloro-pyridine With n-butyllithium; diisopropylamine In tetrahydrofuran; hexane at -78 - -25℃; for 3h;
Stage #2: carbon dioxide In tetrahydrofuran; hexane at 20℃; for 18h;
Stage #3: With hydrogenchloride; water In tetrahydrofuran; diethyl ether; hexane at 0 - 20℃;
80%
2402-77-9

2,3-dichloro-pyridine

76-37-9

2,2,3,3-tetrafluoropropanol

1355067-32-1

3-chloro-2-(2,2,3,3-tetrafluoropropyl)pyridine

Conditions
ConditionsYield
Stage #1: 2,2,3,3-tetrafluoropropanol With sodium hydride In tetrahydrofuran; mineral oil at 0 - 20℃; for 1h;
Stage #2: 2,3-dichloro-pyridine In tetrahydrofuran; mineral oil for 16h; Reflux;
96%
Stage #1: 2,2,3,3-tetrafluoropropanol With sodium hydride In tetrahydrofuran; mineral oil at 0 - 20℃; for 1h;
Stage #2: 2,3-dichloro-pyridine In tetrahydrofuran; mineral oil for 16h; Reflux;
96%
2402-77-9

2,3-dichloro-pyridine

444993-18-4

2-(prop-2-yloxycarbonyl)-5-trfluoromethylphenylboronic acid

1310-65-2

lithium hydroxide

1423022-47-2

2-(3-chloro-pyridin-2-yl)-4-trifluoromethyl-benzoic acid

Conditions
ConditionsYield
Stage #1: 2,3-dichloro-pyridine; 2-(prop-2-yloxycarbonyl)-5-trfluoromethylphenylboronic acid With tetrakis(triphenylphosphine) palladium(0); sodium carbonate In 1,4-dioxane; water at 30 - 110℃; for 20h; Inert atmosphere;
Stage #2: lithium hydroxide In 1,4-dioxane; water at 70℃;
96%
2402-77-9

2,3-dichloro-pyridine

3-bromo-4,5-dihydro-1H-pyrazole-5-carboxylic acid ethyl ester

500011-91-6

5-bromo-2-(3-chloro-pyridin-2-yl)-3,4-dihydro-2H-pyrazole-3-carboxylic acid ethyl ester

Conditions
ConditionsYield
With sodium ethanolate In ethanol at 83℃; for 3h;94.9%
110-85-0

piperazine

2402-77-9

2,3-dichloro-pyridine

87394-55-6

1-(3-chloro-2-pyridyl)piperazine

Conditions
ConditionsYield
In butan-1-ol for 3h; Reflux;94%
In butan-1-ol for 18h; Reflux;92%
In ethanol 1.) ice bath, 2.) room temperature;90.8%
2402-77-9

2,3-dichloro-pyridine

25225-13-2

2-(adamantan-1-yloxy)ethan-1-amine

N-[2-(1-adamantyloxy)ethyl]-3-chloropyridin-2-amine

Conditions
ConditionsYield
With 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; bis(dibenzylideneacetone)-palladium(0); sodium t-butanolate In 1,4-dioxane Reagent/catalyst; Solvent; Temperature; Inert atmosphere; Reflux;94%
504-29-0

2-aminopyridine

2402-77-9

2,3-dichloro-pyridine

138144-95-3

3-chloro-N-(pyridin-2-yl)pyridin-2-amine

Conditions
ConditionsYield
With potassium carbonate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; palladium diacetate In toluene for 18h; Heating;93%
With palladium diacetate; potassium carbonate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl In toluene at 180℃; for 0.5h; Buchwald-Hartwig amination; Inert atmosphere; Microwave irradiation; regioselective reaction;81%
With palladium diacetate; triphenylphosphine; sodium t-butanolate In toluene at 120℃; for 17h; Inert atmosphere;61.7%
2402-77-9

2,3-dichloro-pyridine

104-94-9

4-methoxy-aniline

370571-31-6

3-chloro-N-(4-methoxyphenyl)pyridin-2-amine

Conditions
ConditionsYield
With potassium carbonate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; palladium diacetate In toluene for 18h; Heating;93%
With palladium diacetate; potassium carbonate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl In toluene for 18h; Buchwald-Hartwig reaction; Reflux; regioselective reaction;93%
Stage #1: 2,3-dichloro-pyridine With palladium diacetate; triphenylphosphine; sodium t-butanolate In toluene under 20 Torr; for 0.166667h; Buchwald-Hartwig Coupling; Inert atmosphere;
Stage #2: 4-methoxy-aniline In toluene at 100℃; for 16h; Buchwald-Hartwig Coupling; Inert atmosphere;
91%
With palladium diacetate; potassium carbonate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl In toluene at 180℃; for 0.5h; Buchwald-Hartwig amination; Inert atmosphere; Microwave irradiation; regioselective reaction;82%
2402-77-9

2,3-dichloro-pyridine

10272-07-8

3,5-Dimethoxyaniline

1146547-65-0

C13H13ClN2O2

Conditions
ConditionsYield
Stage #1: 2,3-dichloro-pyridine With palladium diacetate; triphenylphosphine; sodium t-butanolate In toluene under 20 Torr; for 0.166667h; Buchwald-Hartwig Coupling; Inert atmosphere;
Stage #2: 3.5-dimethoxyaniline In toluene at 100℃; for 16h; Buchwald-Hartwig Coupling; Inert atmosphere;
93%
Stage #1: 2,3-dichloro-pyridine; 3.5-dimethoxyaniline With palladium diacetate; triphenylphosphine; sodium t-butanolate In o-xylene at 120℃; for 3h; Inert atmosphere;
Stage #2: With palladium diacetate; 1,8-diazabicyclo[5.4.0]undec-7-ene; tricyclohexylphosphine tetrafluoroborate In N,N-dimethyl acetamide; o-xylene at 145℃; for 16h; Inert atmosphere;
66%
With palladium diacetate; triphenylphosphine; sodium t-butanolate Inert atmosphere; Heating;
2402-77-9

2,3-dichloro-pyridine

824-79-3

sodium 4-methylbenzenesulfinate

1258786-39-8

3-chloro-2-(toluene-4-sulfonyl)-pyridine

Conditions
ConditionsYield
With hydrogenchloride; tetrabutyl-ammonium chloride In N,N-dimethyl acetamide; water at 100℃; for 24h;93%
5382-16-1

4-HYDROXYPIPERIDINE

2402-77-9

2,3-dichloro-pyridine

1250282-78-0

1-(3-chloropyridin-2-yl)piperidin-4-ol

Conditions
ConditionsYield
In dimethyl sulfoxide at 120℃;93%
In N,N-dimethyl-formamide at 80 - 90℃; for 3h;1.76 g
2402-77-9

2,3-dichloro-pyridine

3-bromo-4,5-dihydro-1H-pyrazole-5-carboxylic acid methyl ester

3-bromo-1-(3-chloro-2-pyridyl)-4,5-dihydro-1H-pyrazole-5-carboxylic acid methyl ester

Conditions
ConditionsYield
With sodium methylate In methanol at 80℃; for 3h;92.7%
2402-77-9

2,3-dichloro-pyridine

177-11-7

4,4-ethylenedioxy-piperidine

828265-97-0

C12H15ClN2O2

Conditions
ConditionsYield
With potassium carbonate In dimethyl sulfoxide at 150℃; for 16h;92.5%
With triethylamine In ethanol at 160℃;
With N-ethyl-N,N-diisopropylamine In dimethyl sulfoxide at 125℃; for 12h;
2402-77-9

2,3-dichloro-pyridine

33397-21-6

tris(4-methoxyphenyl)bismuth

3-chloro-2-(4-methoxyphenyl)pyridine

Conditions
ConditionsYield
With tetrakis(triphenylphosphine) palladium(0); caesium carbonate In N,N-dimethyl acetamide at 90℃; for 4h; Inert atmosphere; Schlenk technique; regioselective reaction;92%
5049-61-6

2-Aminopyrazine

2402-77-9

2,3-dichloro-pyridine

(2-pyrazyl)(3-chloro-2-pyridyl)amine

Conditions
ConditionsYield
With potassium carbonate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; palladium diacetate In toluene for 18h; Heating;91%
2402-77-9

2,3-dichloro-pyridine

90-04-0

2-methoxy-phenylamine

1005499-19-3

3-chloro-N-(2-methoxyphenyl)pyridin-2-amine

Conditions
ConditionsYield
With palladium diacetate; potassium carbonate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl In toluene for 18h; Buchwald-Hartwig reaction; Reflux; regioselective reaction;91%
Stage #1: 2,3-dichloro-pyridine With palladium diacetate; triphenylphosphine; sodium t-butanolate In toluene under 20 Torr; for 0.166667h; Buchwald-Hartwig Coupling; Inert atmosphere;
Stage #2: 2-methoxy-phenylamine In toluene at 100℃; for 16h; Buchwald-Hartwig Coupling; Inert atmosphere;
82%
With potassium carbonate; palladium diacetate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl In toluene at 120℃; for 2h;81%
2402-77-9

2,3-dichloro-pyridine

100-46-9

benzylamine

1042512-03-7

N-benzyl-3-chloro-2-pyridinamine

Conditions
ConditionsYield
With palladium diacetate; potassium carbonate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl In toluene at 130℃; for 16h; Inert atmosphere;91%
With palladium diacetate; potassium carbonate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl In toluene at 130℃; for 16h; Buchwald-Hartwig Coupling; Inert atmosphere;91%
With palladium diacetate; potassium carbonate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl In toluene at 130℃; for 16h; Inert atmosphere;91%
With palladium diacetate; potassium carbonate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl In toluene at 130℃; for 16h; Inert atmosphere;90%
With palladium diacetate; potassium carbonate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl In toluene at 180℃; for 0.5h; Buchwald-Hartwig amination; Inert atmosphere; Microwave irradiation; regioselective reaction;52%
2402-77-9

2,3-dichloro-pyridine

123324-71-0

4-tert-butylphenylboronic acid

C15H16ClN

Conditions
ConditionsYield
With palladium diacetate; potassium carbonate; nixantphos In tetrahydrofuran; water at 20℃; for 6h; Suzuki-Miyaura Coupling;91%
2402-77-9

2,3-dichloro-pyridine

62673-31-8

benzyl(bromo)zinc

2-benzyl-3-chloropyridine

Conditions
ConditionsYield
With tetrakis(triphenylphosphine) palladium(0) In tetrahydrofuran at 70℃; for 18h; Inert atmosphere;91%
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Chemistry

Molecular Structure of 2,3-Dichloropyridine (CAS NO.2402-77-9):

IUPAC Name: 2,3-Dichloropyridine
Canonical SMILES: C1=CC(=C(N=C1)Cl)Cl
InChI: InChI=1S/C5H3Cl2N/c6-4-2-1-3-8-5(4)7/h1-3H
InChIKey: MAKFMOSBBNKPMS-UHFFFAOYSA-N
Molecular Weight: 147.99002 [g/mol]
Molecular Formula: C5H3Cl2N
XLogP3: 2.1
H-Bond Donor: 0
H-Bond Acceptor: 1
EINECS: 219-281-8 
Index of Refraction: 1.553
Molar Refractivity: 34.13 cm3
Molar Volume: 106.5 cm3
Surface Tension: 43.1 dyne/cm
Density: 1.388 g/cm3
Flash Point: 87.5 °C
Enthalpy of Vaporization: 41.11 kJ/mol
Boiling Point: 192.5 °C at 760 mmHg
Vapour Pressure: 0.679 mmHg at 25 °C
Appearance: White to slightly beige crystalline powder
Melting Point: 64-67 °C(lit.)
Water Solubility: slightly soluble
Product Categories: blocks; Pyridines; Pyridine; Halides; Heterocycles; Pyridines, Pyrimidines, Purines and Pteredines; Pyridine series; Pyridines derivates; Chloropyridines; Halopyridines; Boronic Acid; C5Heterocyclic Building Blocks; Halogenated Heterocycles; Heterocyclic Building Blocks; Chlorinated heterocyclic series

Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intraperitoneal 135mg/kg (135mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: ANTIPSYCHOTIC

LIVER: FATTY LIVER DEGERATION
Toxicology and Applied Pharmacology. Vol. 11, Pg. 361, 1967.

Safety Profile

Safety Information of 2,3-Dichloropyridine (CAS NO.2402-77-9):
Hazard Codes: IrritantXi,HarmfulXn
Risk Statements: 36/37/38-22 
R36/37/38:Irritating to eyes, respiratory system and skin. 
R22:Harmful if swallowed.
Safety Statements: 26-36-37/39 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing. 
S37/39:Wear suitable gloves and eye/face protection.
WGK Germany: 3
RTECS: US8050000
Hazard Note: Irritant
HazardClass: IRRITANT

Specification

 2,3-Dichloropyridine (CAS NO.2402-77-9), its Synonyms are Pyridine, 2,3-dichloro- ; 2,3-Dichlopyridine ; 2,3-Dichloro-pyridine .

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