Product Name

  • Name

    2-Chloro-5-trifluoromethylpyridine

  • EINECS 257-856-5
  • CAS No. 52334-81-3
  • Article Data24
  • CAS DataBase
  • Density 1.417 g/cm3
  • Solubility
  • Melting Point 29-33 °C
  • Formula C6H3ClF3N
  • Boiling Point 171.636 °C at 760 mmHg
  • Molecular Weight 181.545
  • Flash Point 57.604 °C
  • Transport Information UN 2811
  • Appearance white to yellowish crystalline low melting solid
  • Safety 26-37/39-36/37/39-45-22-16
  • Risk Codes 36/37/38-20/21/22-25-11
  • Molecular Structure Molecular Structure of 52334-81-3 (2-Chloro-5-trifluoromethylpyridine)
  • Hazard Symbols HarmfulXn, IrritantXi, ToxicT, FlammableF
  • Synonyms 2-Chloro-5-(trifluoromethyl)pyridine;5-Trifluoromethyl-2-chloropyridine;2,5-CTF;
  • PSA 12.89000
  • LogP 2.75380

Synthetic route

3-(trifluoromethyl)pyridine
3796-23-4

3-(trifluoromethyl)pyridine

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

Conditions
ConditionsYield
With 1% Pd on activated carbon; chlorine at 235℃; for 24h; Temperature; Reagent/catalyst; Inert atmosphere;94.9%
2-chloro-5-(Trichloromethyl)-pyridine
69045-78-9

2-chloro-5-(Trichloromethyl)-pyridine

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

Conditions
ConditionsYield
With hydrogen fluoride; mercury(II) oxide87%
With antimony(III) fluoride for 0.166667h; Heating;54.5%
With hydrogen fluoride
With hydrogen fluoride at 130℃; Temperature;
3-Methylpyridine
108-99-6

3-Methylpyridine

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

Conditions
ConditionsYield
With magnesium fluoride; hydrogen fluoride; chlorine at 220 - 280℃; for 8h; Temperature; Reagent/catalyst; Inert atmosphere;76.7%
2-chloro-5-trifluoromethylpyridine 1-oxide
261956-65-4

2-chloro-5-trifluoromethylpyridine 1-oxide

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

Conditions
ConditionsYield
With diethyl 2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate In dichloromethane at 31℃; for 16h; Sealed tube; Irradiation;59%
3-(trifluoromethyl)pyridine-N-oxide
22253-72-1

3-(trifluoromethyl)pyridine-N-oxide

A

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

B

2-chloro-3-trifluoromethyl-pyridine
65753-47-1

2-chloro-3-trifluoromethyl-pyridine

Conditions
ConditionsYield
Stage #1: 3-(trifluoromethyl)pyridine-N-oxide With trichlorophosphate In 1,2-dichloro-ethane at 105 - 125℃; for 7h;
Stage #2: With triethylamine In 1,2-dichloro-ethane at -30 - -20℃; for 3h;
A 25.34%
B 50.34%
2-choro-5-iodopyridine
69045-79-0

2-choro-5-iodopyridine

trimethylsilyl 2-chloro-2,2-difluoroacetate

trimethylsilyl 2-chloro-2,2-difluoroacetate

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

Conditions
ConditionsYield
With potassium fluoride; copper(l) iodide; triethylamine In N,N-dimethyl-formamide at 90℃; for 4h; Sealed tube; Inert atmosphere;38%
With copper(l) iodide; N,N,N,N,-tetramethylethylenediamine; silver fluoride In N,N-dimethyl-formamide at 100℃; for 1h; Inert atmosphere; Sealed tube; chemoselective reaction;98 %Spectr.
2-choro-5-iodopyridine
69045-79-0

2-choro-5-iodopyridine

sodium 2,2,2-trifluoroacetate
2923-18-4

sodium 2,2,2-trifluoroacetate

A

2,5-bis(trifluoromethyl)pyridine
20857-44-7

2,5-bis(trifluoromethyl)pyridine

B

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

Conditions
ConditionsYield
With 1-methyl-pyrrolidin-2-one; copper(l) iodide at 160℃; for 4h;A 7 % Chromat.
B 85 % Chromat.
2-chloro-5-(Trichloromethyl)-pyridine
69045-78-9

2-chloro-5-(Trichloromethyl)-pyridine

A

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

B

2-fluoro-5-(trifluoromethyl)pyridine
69045-82-5

2-fluoro-5-(trifluoromethyl)pyridine

Conditions
ConditionsYield
With antimony(III) fluoride
6-Chloro-3-pyridinecarboxylic acid
5326-23-8

6-Chloro-3-pyridinecarboxylic acid

sulfur tetrafluoride

sulfur tetrafluoride

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

Conditions
ConditionsYield
With hydrogen fluoride In (2S)-N-methyl-1-phenylpropan-2-amine hydrate
With hydrogen fluoride
With sodium hydroxide; hydrogen fluoride
6-hydroxy-3-pyridinecarboxylic acid
5006-66-6

6-hydroxy-3-pyridinecarboxylic acid

sulfur tetrafluoride

sulfur tetrafluoride

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

Conditions
ConditionsYield
With phosphorus pentachloride In water
2-hydroxy-5-(trifluoromethyl)pyridine
33252-63-0

2-hydroxy-5-(trifluoromethyl)pyridine

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

Conditions
ConditionsYield
With phosphorus pentachloride In water
With trichlorophosphate In N-methyl-acetamide; water
antimony(III) fluoride
7783-56-4

antimony(III) fluoride

2-chloro-5-(Trichloromethyl)-pyridine
69045-78-9

2-chloro-5-(Trichloromethyl)-pyridine

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

6-hydroxy-3-pyridinecarboxylic acid
5006-66-6

6-hydroxy-3-pyridinecarboxylic acid

sulfur tetrafluorde

sulfur tetrafluorde

5-(trifluoromethyl)-2(1H)-pyridone
33252-63-0

5-(trifluoromethyl)-2(1H)-pyridone

phosphorus pentachloride
10026-13-8, 874483-75-7

phosphorus pentachloride

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

Conditions
ConditionsYield
With trichlorophosphate In water
2-choro-5-iodopyridine
69045-79-0

2-choro-5-iodopyridine

(trifluoromethyl)triethylsilane
120120-26-5

(trifluoromethyl)triethylsilane

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

Conditions
ConditionsYield
With potassium fluoride; copper(l) iodide; 1,10-Phenanthroline In 1-methyl-pyrrolidin-2-one; N,N-dimethyl-formamide at 20 - 60℃; Inert atmosphere;69 %Spectr.
Langlois reagent
2926-29-6

Langlois reagent

6-chloropyridin-3-ylboronic acid
444120-91-6

6-chloropyridin-3-ylboronic acid

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

Conditions
ConditionsYield
With tert.-butylhydroperoxide; tetrakis(actonitrile)copper(I) hexafluorophosphate; sodium hydrogencarbonate In methanol; water at 0 - 20℃; for 12h;85 %Spectr.
2-cyclopropyl-1-(trifluoromethyl)benzo[b]thiophenium triflate
1214756-50-9

2-cyclopropyl-1-(trifluoromethyl)benzo[b]thiophenium triflate

6-chloropyridin-3-ylboronic acid
444120-91-6

6-chloropyridin-3-ylboronic acid

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

Conditions
ConditionsYield
With 2,4,6-trimethyl-pyridine; fluorobenzene; copper diacetate In ethyl acetate at 20℃; for 20h; Inert atmosphere;16 %Spectr.
(6-chloropyridin-3-yl)(mesityl)iodonium triflate

(6-chloropyridin-3-yl)(mesityl)iodonium triflate

(trifluoromethyl)trimethylsilane
81290-20-2

(trifluoromethyl)trimethylsilane

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

Conditions
ConditionsYield
With potassium fluoride; copper(l) iodide; triphenylphosphine In N,N-dimethyl-formamide at 65℃; for 12h; regioselective reaction;72 %Spectr.
3-Methylpyridine
108-99-6

3-Methylpyridine

A

2,6-dichloro-3-(trifluoromethyl)pyridine
55304-75-1

2,6-dichloro-3-(trifluoromethyl)pyridine

B

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

C

2-chloro-3-trifluoromethyl-pyridine
65753-47-1

2-chloro-3-trifluoromethyl-pyridine

Conditions
ConditionsYield
With hydrogen fluoride; chlorine at 200 - 400℃; for 30h; Large scale;A 47.7 %Chromat.
B 3.7 %Chromat.
C 14.5 %Chromat.
3-Hydroxybenzyl alcohol
620-24-6

3-Hydroxybenzyl alcohol

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

[3-[[5-(trifluoromethyl)-2-pyridyl]oxy]phenyl]methanol
1020325-22-7

[3-[[5-(trifluoromethyl)-2-pyridyl]oxy]phenyl]methanol

Conditions
ConditionsYield
With potassium carbonate In N,N-dimethyl-formamide at 95 - 105℃; for 5h; Product distribution / selectivity;100%
With potassium carbonate In N,N-dimethyl-formamide at 90 - 95℃; for 16h;100%
With potassium carbonate In N,N-dimethyl-formamide at 95℃; for 16h; Product distribution / selectivity;53%
With potassium carbonate In N,N-dimethyl-formamide at 95℃; for 16h;53%
With potassium carbonate In N,N-dimethyl-formamide at 95℃; for 16h;53%
5-bromo-2-chlorophenol
183802-98-4

5-bromo-2-chlorophenol

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

2-(5-bromo-2-chlorophenoxy)-5-(trifluoromethyl)pyridine
1020330-54-4

2-(5-bromo-2-chlorophenoxy)-5-(trifluoromethyl)pyridine

Conditions
ConditionsYield
With potassium carbonate In N,N-dimethyl-formamide at 20 - 110℃; for 12h;100%
8-({[tert-butyl(dimethyl)silyl]oxy}methyl)-8-methyl-3-{1-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]cyclopropyl}-5,6,8,9-tetrahydro[1,2,4]triazolo[4,3-d][1,4]thiazepine
1403396-21-3

8-({[tert-butyl(dimethyl)silyl]oxy}methyl)-8-methyl-3-{1-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]cyclopropyl}-5,6,8,9-tetrahydro[1,2,4]triazolo[4,3-d][1,4]thiazepine

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

8-({[tert-butyl(dimethyl)silyl]oxy}methyl)-8-methyl-3-(1-{4-[5-(trifluoromethyl)pyridin-2-yl]phenyl}cyclopropyl)-5,6,8,9-tetrahydro[1,2,4]triazolo[4,3-d][1,4]thiazepine
1403396-51-9

8-({[tert-butyl(dimethyl)silyl]oxy}methyl)-8-methyl-3-(1-{4-[5-(trifluoromethyl)pyridin-2-yl]phenyl}cyclopropyl)-5,6,8,9-tetrahydro[1,2,4]triazolo[4,3-d][1,4]thiazepine

Conditions
ConditionsYield
With tetrakis(triphenylphosphine) palladium(0); potassium carbonate In 1,2-dimethoxyethane; water at 130℃; for 1.5h; Microwave irradiation;100%
(7S)-7-methyl-6,7-dihydropyrazolo[1,5-a]pyrazine-4 (5H)-one

(7S)-7-methyl-6,7-dihydropyrazolo[1,5-a]pyrazine-4 (5H)-one

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

C13H11F3N4O

C13H11F3N4O

Conditions
ConditionsYield
With tetrakis(triphenylphosphine) palladium(0); caesium carbonate; 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene In 1,4-dioxane at 90℃; for 40h; Sealed tube; Inert atmosphere;100%
3-Bromophenol
591-20-8

3-Bromophenol

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

2-(3-bromophenoxy)-5-(trifluoromethyl)pyridine
693828-63-6

2-(3-bromophenoxy)-5-(trifluoromethyl)pyridine

Conditions
ConditionsYield
With potassium carbonate In N,N-dimethyl-formamide at 110℃; for 16h; Inert atmosphere;99%
With potassium carbonate In N,N-dimethyl-formamide at 110℃;
Thien-3-ylboronic acid
6165-69-1

Thien-3-ylboronic acid

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

2-(thiophen-3-yl)-5-(trifluoromethyl)pyridine
1092384-65-0

2-(thiophen-3-yl)-5-(trifluoromethyl)pyridine

Conditions
ConditionsYield
With dichloro bis((p-dimethylaminophenyl)-ϖ-di-tert-butylphosphine)palladium(II); triethylamine In water at 20℃; for 19h; Suzuki-Miyaura coupling; Inert atmosphere;99%
trimethoxonium tetrafluoroborate
420-37-1

trimethoxonium tetrafluoroborate

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

C7H6ClF3N(1+)*BF4(1-)
1622456-59-0

C7H6ClF3N(1+)*BF4(1-)

Conditions
ConditionsYield
In dichloromethane at 20℃;99%
triethyloxonium fluoroborate
368-39-8

triethyloxonium fluoroborate

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

1-ethyl-5-trifluoromethyl-2-chloropyridinium tetrafluoroborate
1622456-61-4

1-ethyl-5-trifluoromethyl-2-chloropyridinium tetrafluoroborate

Conditions
ConditionsYield
In dichloromethane at 20℃;99%
2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

4-tert-butylphenylboronic acid
123324-71-0

4-tert-butylphenylboronic acid

2-(4-(tert-butyl)phenyl)-5-(trifluoromethyl)pyridine

2-(4-(tert-butyl)phenyl)-5-(trifluoromethyl)pyridine

Conditions
ConditionsYield
With palladium diacetate; potassium carbonate; nixantphos In tetrahydrofuran; water at 20℃; for 6h; Suzuki-Miyaura Coupling;99%
2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

tributyl(thien-2-yl)stannane
54663-78-4

tributyl(thien-2-yl)stannane

2-(thiophen-2-yl)-5-(trifluoromethyl)pyridine

2-(thiophen-2-yl)-5-(trifluoromethyl)pyridine

Conditions
ConditionsYield
With tetrakis(triphenylphosphine) palladium(0) In toluene for 16h; Inert atmosphere; Reflux;99%
2,4-di-tert-Butylphenol
96-76-4

2,4-di-tert-Butylphenol

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

1-<2-(5-trifluoromethylpyridyl)>-2-hydroxy-3,5-di-tert-butylbenzene

1-<2-(5-trifluoromethylpyridyl)>-2-hydroxy-3,5-di-tert-butylbenzene

Conditions
ConditionsYield
With potassium tert-butylate In ammonia at -78℃; for 1h; Irradiation; add of 1,3-dinitrobenzene or galvinoxyl;98%
2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

Benzimidazol-2-thiol
134469-07-1

Benzimidazol-2-thiol

2-<5-(trifluoromethyl)pyridin-2-ylsulfanyl>-1H-benzimidazole

2-<5-(trifluoromethyl)pyridin-2-ylsulfanyl>-1H-benzimidazole

Conditions
ConditionsYield
With potassium tert-butylate for 0.5h; Irradiation;98%
With sodium hydroxide 2.) DMF, reflux, 3 h; Yield given. Multistep reaction;
2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

2-hydroxyethanethiol
60-24-2

2-hydroxyethanethiol

2-<5-(trifluoromethyl)pyridin-2-ylsulfanyl>ethanol

2-<5-(trifluoromethyl)pyridin-2-ylsulfanyl>ethanol

Conditions
ConditionsYield
With potassium tert-butylate for 0.166667h; Irradiation;98%
2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

di-4-methoxyphenylzinc
97302-05-1

di-4-methoxyphenylzinc

2-(4-methoxyphenyl)-5-(trifluoromethyl)pyridine
296776-84-6

2-(4-methoxyphenyl)-5-(trifluoromethyl)pyridine

Conditions
ConditionsYield
With tripiperidino-phosphine; nickel dichloride In tetrahydrofuran; 1-methyl-pyrrolidin-2-one at 60℃; for 1h; Negishi cross-coupling reaction;98%
2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

1H-Pyrazolo[3,4-b]pyridine
271-73-8

1H-Pyrazolo[3,4-b]pyridine

1-(4-(trifluoromethyl)pyridin-2-yl)-1H-pyrazolo[3,4-b]pyridine

1-(4-(trifluoromethyl)pyridin-2-yl)-1H-pyrazolo[3,4-b]pyridine

Conditions
ConditionsYield
With tris(dibenzylideneacetone)dipalladium(0) chloroform complex; zinc diacetate; 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene In 1,4-dioxane at 100℃; for 16h; Buchwald-Hartwig Coupling; Inert atmosphere;98%
2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

hydroquinone
123-31-9

hydroquinone

2-(4-hydroxyphenoxy)-5-trifluoromethylpyridine
69045-85-8

2-(4-hydroxyphenoxy)-5-trifluoromethylpyridine

Conditions
ConditionsYield
With sodium hydrogensulfite; potassium hydroxide In N,N-dimethyl-formamide at 50 - 90℃; for 6h; Temperature; Reagent/catalyst;97.8%
With potassium carbonate In N,N-dimethyl-formamide at 60 - 90℃; for 4h;75%
With potassium carbonate In N,N-dimethyl-formamide at 20℃;
N,N-dimethyl-cyclohexanamine
98-94-2

N,N-dimethyl-cyclohexanamine

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

A

N,N-dimethyl-5-(trifluoromethyl)pyridine-2-amine
136539-99-6

N,N-dimethyl-5-(trifluoromethyl)pyridine-2-amine

B

Cyclohexyl-methyl-(5-trifluoromethyl-pyridin-2-yl)-amine
136539-98-5

Cyclohexyl-methyl-(5-trifluoromethyl-pyridin-2-yl)-amine

Conditions
ConditionsYield
In tetrahydrofuran at 100℃; under 6000480 Torr; for 96h;A 2%
B 97%
2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

5,5’-bis(trifluoromethyl)-2,2’-bipyridine
142946-80-3

5,5’-bis(trifluoromethyl)-2,2’-bipyridine

Conditions
ConditionsYield
With potassium hydroxide In water; N,N-dimethyl-formamide at 35℃; for 12h; Ullmann Condensation; Inert atmosphere;97%
With manganese; nickel(II) bromide trihydrate In N,N-dimethyl-formamide at 20 - 60℃; for 20h; Inert atmosphere;70%
With [2,2]bipyridinyl; nickel diacetate; sodium tert-pentoxide In tetrahydrofuran at 25℃; for 0.0377778h;57%
2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

2-mercapto-3H-quinazolin-4-one
13906-09-7

2-mercapto-3H-quinazolin-4-one

2-<5-(trifluoromethyl)pyridin-2-ylsulfanyl>quinazolin-4(3H)-one

2-<5-(trifluoromethyl)pyridin-2-ylsulfanyl>quinazolin-4(3H)-one

Conditions
ConditionsYield
With potassium tert-butylate for 0.416667h; Irradiation;97%
2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

ethyl 3-methylpyrazole-4-carboxylate
85290-78-4

ethyl 3-methylpyrazole-4-carboxylate

ethyl 3-methyl-1-[5-(trifluoromethyl)-2-pyridyl]-1H-pyrazole-4-carboxylate

ethyl 3-methyl-1-[5-(trifluoromethyl)-2-pyridyl]-1H-pyrazole-4-carboxylate

Conditions
ConditionsYield
With potassium carbonate In DMF (N,N-dimethyl-formamide) at 100℃;97%
2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

2,4-dimethoxypyrimidin-5-ylboronic acid
89641-18-9

2,4-dimethoxypyrimidin-5-ylboronic acid

2,4-dimethoxy-5-(5-(trifluoromethyl)pyridin-2-yl)pyrimidine
1334531-16-6

2,4-dimethoxy-5-(5-(trifluoromethyl)pyridin-2-yl)pyrimidine

Conditions
ConditionsYield
With potassium phosphate; chloro(2-dicyclohexylphosphino-2’,4’,6’-triisopropyl-1,1‘-biphenyl)[2-(2’-amino-1,1‘-biphenyl’)]palladium(II); tetrabutylammomium bromide In 1-methyl-pyrrolidin-2-one; water; toluene at 90℃; for 5h; Suzuki-Miyaura cross-coupling; Continuous flow reactor; Inert atmosphere;97%
2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

4-hydroxy-benzaldehyde
123-08-0

4-hydroxy-benzaldehyde

4-((5-(trifluoromethyl)pyridin-2-yl)oxy)benzaldehyde
103962-21-6

4-((5-(trifluoromethyl)pyridin-2-yl)oxy)benzaldehyde

Conditions
ConditionsYield
With potassium carbonate In dimethyl sulfoxide at 140℃; for 10h;97%
Stage #1: 4-hydroxy-benzaldehyde With caesium carbonate In N,N-dimethyl-formamide at 20℃; for 0.333333h;
Stage #2: 2-chloro-5-trifluoromethylpyridine In N,N-dimethyl-formamide at 20 - 105℃; for 10h;
2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

1-(5-trifluoromethyl-2-pyridyl)-4-(dimethylamino)pyridinium chloride

1-(5-trifluoromethyl-2-pyridyl)-4-(dimethylamino)pyridinium chloride

Conditions
ConditionsYield
In N,N-dimethyl-formamide at 120℃; for 3h; Temperature;97%
3-(2,6-dichloro-4-(benzyloxy)phenoxy)-1-propyl alcohol

3-(2,6-dichloro-4-(benzyloxy)phenoxy)-1-propyl alcohol

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

1-benzyloxy-3,5-dichloro-4-[3-(5-trifluoromethylpyridin-2-yloxy)propyloxy]benzene

1-benzyloxy-3,5-dichloro-4-[3-(5-trifluoromethylpyridin-2-yloxy)propyloxy]benzene

Conditions
ConditionsYield
With hydrogenchloride; sodium hydroxide In n-heptane; water96.3%
In ice-water; N,N-dimethyl-formamide67%
N,N'-dimethylbenzylamine
103-83-3

N,N'-dimethylbenzylamine

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

A

N,N-dimethyl-5-(trifluoromethyl)pyridine-2-amine
136539-99-6

N,N-dimethyl-5-(trifluoromethyl)pyridine-2-amine

B

Benzyl-methyl-(5-trifluoromethyl-pyridin-2-yl)-amine

Benzyl-methyl-(5-trifluoromethyl-pyridin-2-yl)-amine

Conditions
ConditionsYield
In tetrahydrofuran at 100℃; under 6000480 Torr; for 96h;A 96%
B 2%
2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

4-methoxy-phenol
150-76-5

4-methoxy-phenol

5-(trifluoromethyl)-2-(4-methoxyphenoxy)pyridine
69045-86-9

5-(trifluoromethyl)-2-(4-methoxyphenoxy)pyridine

Conditions
ConditionsYield
With aluminum oxide; potassium fluoride In N,N-dimethyl-formamide at 120℃; for 5h;96%
In water; dimethyl sulfoxide
2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

phenylboronic acid
98-80-6

phenylboronic acid

2-phenyl-5-(trifluoromethyl)pyridine
188527-56-2

2-phenyl-5-(trifluoromethyl)pyridine

Conditions
ConditionsYield
With palladium diacetate; potassium carbonate; nixantphos In tetrahydrofuran; water at 20℃; for 6h; Suzuki-Miyaura Coupling;96%
Stage #1: 2-chloro-5-trifluoromethylpyridine; phenylboronic acid With palladium diacetate; (R)-6-dicyclohexylphoshino-6'-diphenylphosphino-3,3'-dimethoxy-2,2',4,4'-tetramethyl-1,1'-biphenyl In dodecane; butan-1-ol at 25℃; for 0.0833333h; Suzuki-Miyaura Coupling; Inert atmosphere; Glovebox;
Stage #2: With cesiumhydroxide monohydrate In dodecane; water; butan-1-ol at 25℃; Suzuki-Miyaura Coupling; Inert atmosphere; Glovebox;
95%
With dichloro bis((p-dimethylaminophenyl)-ϖ-di-tert-butylphosphine)palladium(II); triethylamine In water at 20℃; for 24h; Suzuki-Miyaura coupling; Inert atmosphere;94%
p-hydroxymethylphenylboronic acid
59016-93-2

p-hydroxymethylphenylboronic acid

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

[4-(5-trifluoromethyl-pyridin-2-yl)-phenyl]-methanol
613239-75-1

[4-(5-trifluoromethyl-pyridin-2-yl)-phenyl]-methanol

Conditions
ConditionsYield
With C37H44ClN2O3PPd; caesium carbonate In water at 100℃; for 12h; Suzuki Coupling; Schlenk technique; Inert atmosphere;96%
palladium dichloride
ethyl 3-isopropyl-1H-pyrazole-4-carboxylate
342026-17-9

ethyl 3-isopropyl-1H-pyrazole-4-carboxylate

2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

ethyl 3-isopropyl-1-[5-(trifluoromethyl)-2-pyridyl]-1H-pyrazole-4-carboxylate

ethyl 3-isopropyl-1-[5-(trifluoromethyl)-2-pyridyl]-1H-pyrazole-4-carboxylate

Conditions
ConditionsYield
With potassium carbonate In DMF (N,N-dimethyl-formamide) at 100℃;96%
2-chloro-5-trifluoromethylpyridine
52334-81-3

2-chloro-5-trifluoromethylpyridine

(RS)-2-methylpiperazine
109-07-9

(RS)-2-methylpiperazine

3-methyl-1-(5-trifluoromethyl-pyridin-2-yl)-piperazine
866785-24-2

3-methyl-1-(5-trifluoromethyl-pyridin-2-yl)-piperazine

Conditions
ConditionsYield
With triethylamine In toluene at 150℃; for 20h;96%

2-Chloro-5-trifluoromethylpyridine Specification

The IUPAC name of 2-Chloro-5-(trifluoromethyl)pyridine is 2-chloro-5-(trifluoromethyl)pyridine. With the CAS registry number 52334-81-3, it is also named as Pyridine, 2-chloro-5-(trifluoromethyl)-. The product's categories are Blocks; Fluoro Compounds; Pyridines; Pyridine; Pyridines, Pyrimidines, Purines and Pteredines; Pyridine Series; Halides; Pyridines Derivates; Chloropyridines; Halopyridines; C6 Heterocyclic Building Blocks; Halogenated Heterocycles; Heterocyclic Building Blocks. Besides, it is white to yellowish crystalline low melting solid, which should be stored in tightly sealed containers in a cool, dry place at 0-6 °C. And you should ensure that the workplaces have good ventilated or exhaust devices. In addition, its molecular formula is C6H3ClF3N and molecular weight is 181.54.

The other characteristics of this product can be summarized as: (1)EINECS: 257-856-5; (2)ACD/LogP: 2.32; (3)# of Rule of 5 Violations: 0; (4)ACD/LogD (pH 5.5): 2.315; (5)ACD/LogD (pH 7.4): 2.315; (6)ACD/BCF (pH 5.5): 33.837; (7)ACD/BCF (pH 7.4): 33.837; (8)ACD/KOC (pH 5.5): 432.864; (9)ACD/KOC (pH 7.4): 432.864; (10)#H bond acceptors: 1; (11)#H bond donors: 0; (12)#Freely Rotating Bonds: 0; (13)Polar Surface Area: 12.89 Å2; (14)Index of Refraction: 1.447; (15)Molar Refractivity: 34.219 cm3; (16)Molar Volume: 128.118 cm3; (17)Polarizability: 13.565×10-24cm3; (18)Surface Tension: 27.918 dyne/cm; (19)Density: 1.417 g/cm3; (20)Flash Point: 57.604 °C; (21)Melting Point: 29-33 °C; (22)Enthalpy of Vaporization: 39.126 kJ/mol; (23)Boiling Point: 171.636 °C at 760 mmHg; (24)Vapour Pressure: 1.844 mmHg at 25 °C.

Preparation of 2-Chloro-5-(trifluoromethyl)pyridine: frist of all, you can use Cl2 to react with 2-Chloro-5-methylpyridine. And you would obtain 2-Chloro-5-trichloromethylpyridine. Then you will get this chemical by fluorination.

Uses of 2-Chloro-5-(trifluoromethyl)pyridine: this chemical can be used as an intermediate of Fluazifop. What's more, it can react with [1,4]diazepane to get 1,4-bis-(5-trifluoromethyl-pyridin-2-yl)-[1,4]diazepane.



This reaction needs triethylamine, polytetrafluoroethylene (PTFE) and tetrahydrofuran at temperature of 100 °C for 4 days. The yield is 89 %.

When you are using this chemical, please be cautious about it as the following: it is highly flammable, so please keep away from sources of ignition. It is also harmful by inhalation, in contact with skin and if swallowed. And it is toxic if swallowed. Please do not breathe dust. Moreover, it irritates to eyes, respiratory system and skin. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. And you should wear suitable protective clothing, gloves and eye/face protection. Additionally, in case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)

People can use the following data to convert to the molecule structure.
(1)Canonical SMILES: C1=CC(=NC=C1C(F)(F)F)Cl
(2)InChI: InChI=1S/C6H3ClF3N/c7-5-2-1-4(3-11-5)6(8,9)10/h1-3H
(3)InChIKey: JFZJMSDDOOAOIV-UHFFFAOYSA-N 

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