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137234-74-3

Basic Information
CAS No.: 137234-74-3
Name: 4-Chloro-6-ethyl-5-fluoropyrimidine
Article Data: 13
Cas Database
Molecular Structure:
Molecular Structure of 137234-74-3 (4-Chloro-6-ethyl-5-fluoropyrimidine)
Formula: C6H6ClFN2
Molecular Weight: 160.578
Synonyms: Pyrimidine,4-chloro-6-ethyl-5-fluoro-;
EINECS: 604-010-1
Density: 1.286 g/cm3
Melting Point: N/A
Boiling Point: 210.913 °C at 760 mmHg
Flash Point: 81.358 °C
Solubility: N/A
Appearance: N/A
Hazard Symbols: 20/21/22-36/37/38:;
Risk Codes: 20/21/22-36/37/38
Safety: 22-36/37/39-45
Transport Information: N/A
PSA: 25.78000
LogP: 1.83150
Synthetic route
137234-87-8

6-ethyl-5-fluoropyrimidin-4(1H)-one

137234-74-3

4-chloro-5-fluoro-6-ethylpyrimidine

Conditions
ConditionsYield
With triethylamine; trichlorophosphate In dichloromethane at 48℃; for 6h; Product distribution / selectivity; Industry scale; Heating / reflux;99%
With triethylamine; trichlorophosphate In dichloromethane for 5h; Product distribution / selectivity; Heating / reflux;90%
With triethylamine; trichlorophosphate In dichloromethane at 40℃; for 5.16667h; Reflux;
137234-87-8

6-ethyl-5-fluoro-4-hydroxypyrimidine

137234-74-3

4-chloro-5-fluoro-6-ethylpyrimidine

Conditions
ConditionsYield
Stage #1: 6-ethyl-5-fluoro-4-hydroxypyrimidine With triethylamine; trichlorophosphate In dichloromethane for 5.5h; Heating / reflux;
Stage #2: With hydrogenchloride; water In dichloromethane at 20℃;
95%
With triethylamine; trichlorophosphate In dichloromethane at 40℃; for 8h; Reflux;90%
With trichlorophosphate In N,N-dimethyl-formamide at 90℃; for 5h;90.2%
188416-35-5

3-(6-chloro-5-fluoropyrimidin-4-yl)-2-(2,4-difluorophenyl)-1-(1H-1,2,4-triazol-1-yl)-2-butanol

A

86404-63-9

1-(2,4-difluorophenyl)-2-(1H-1,2,4-triazolyl)ethanone

B

137234-74-3

4-chloro-5-fluoro-6-ethylpyrimidine

Conditions
ConditionsYield
With hydrogenchloride In water at 60 - 70℃; Temperature; Reagent/catalyst; Solvent;A 88.4%
B n/a
137234-87-8

6-Ethyl-5-fluoropyrimidin-4(3H)-one

137234-74-3

4-chloro-5-fluoro-6-ethylpyrimidine

Conditions
ConditionsYield
With trichlorophosphate Heating;
759-67-1

2-fluoro-3-oxopentanoic acid ethyl ester

137234-74-3

4-chloro-5-fluoro-6-ethylpyrimidine

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 1) MeONa, MeOH
2: POCl3 / Heating
View Scheme
Multi-step reaction with 2 steps
1: sodium methylate / methanol / 20 h / 15 °C
2: trichlorophosphate / 3 h / 60 °C
View Scheme
137234-74-3

4-chloro-5-fluoro-6-ethylpyrimidine

188416-28-6

1-(4-chloro-5-fluoropyrimidin-6-yl)bromoethane

Conditions
ConditionsYield
With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile) In dichloromethane at 55℃; for 16h; Temperature;98%
With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile) In dichloromethane for 12h; Reflux;95.1%
With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile) In dichloromethane for 12h; Reflux;95.1%
106-54-7

p-Chlorothiophenol

137234-74-3

4-chloro-5-fluoro-6-ethylpyrimidine

1112937-23-1

4-(4-chloro-phenylsulfanyl)-6-ethyl-5-fluoropyrimidine

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In acetonitrile at 10 - 20℃; for 2h;96%
137234-74-3

4-chloro-5-fluoro-6-ethylpyrimidine

4892-02-8

Methyl thiosalicylate

1258386-27-4

methyl 2-(6-ethyl-5-fluoropyrimidin-4-yl-sulfanyl)benzoate

Conditions
ConditionsYield
Stage #1: Methyl thiosalicylate With sodium hydride In tetrahydrofuran at 5℃; for 0.666667h;
Stage #2: 4-chloro-6-ethyl-5-fluoropyrimidine In tetrahydrofuran at 20 - 25℃;
96%
108-98-5

thiophenol

137234-74-3

4-chloro-5-fluoro-6-ethylpyrimidine

1112937-27-5

4-(phenylsulfanyl)-6-ethyl-5-fluoropyrimidine

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In acetonitrile at 10℃; for 2h;95%

(3-(3-phenylpropyl)piperidin-3-yl)methanol

137234-74-3

4-chloro-5-fluoro-6-ethylpyrimidine

(1-(6-ethyl-5-fluoropyrimidin-4-yl)-3-(3-phenylpropyl)piperidin-3-yl)methanol

Conditions
ConditionsYield
With potassium carbonate In dimethyl sulfoxide at 120℃; for 17.3h; Sealed tube;81%
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    Product Name: 4-Chloro-6-ethyl-5-fluoropyrimidine Synonyms: 4-Chloro-5-fluoro-6-ethylpyriMidine;PyriMidine, 4-chloro-6-ethyl-5-fluoro-;4-chloro-6-ethyl-5-fluoropyiMidine;4-CHLORO-6-ETHYL-5-FLUOROPYRIMIDINE;6-CHLORO-4-ETHYL-5-FLUORO-1,6-DIHYDROPY

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  • 4-CHLORO-6-ETHYL-5-FLUORO PYRIMIDINE   Pyrimidine derivatives  CAS NO.137234-74-3

  • Casno:

    137234-74-3

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Chemistry

Structure of 4-Chloro-6-ethyl-5-fluoropyrimidine (CAS NO.137234-74-3):

Empirical Formula: C6H6ClFN2
Molecular Weight: 160.5766 
Index of Refraction: 1.502
Molar Refractivity: 36.873 cm3
Molar Volume: 124.859 cm3
Polarizability: 14.618×10-24cm3
Surface Tension: 40.592 dyne/cm
Density: 1.286 g/cm3
Flash Point: 81.358 °C
Enthalpy of Vaporization: 42.896 kJ/mol
Boiling Point: 210.913 °C at 760 mmHg
Vapour Pressure: 0.272 mmHg at 25°C 
Product Categories: APIs & Intermediate;Pyrimidine
Synonyms of 4-Chloro-6-ethyl-5-fluoropyrimidine (CAS NO.137234-74-3): Pyrimidine,4-chloro-6-ethyl-5-fluoro-  

Safety Profile

Risk Statements: 20/21/22-36/37/38 
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed. 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 22-36/37/39-45 
S22:Do not breathe dust. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)