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CAS No.: | 16063-70-0 |
---|---|
Name: | 2,3,5-Trichloropyridine |
Article Data: | 36 |
Molecular Structure: | |
Formula: | C5H2Cl3N |
Molecular Weight: | 182.437 |
Synonyms: | 2,3,5-trichloropyridine intermediate;5-20-05-00420 (Beilstein Handbook Reference);Pyridine, 2,3,5-trichloro-; |
EINECS: | 407-270-2 |
Density: | 1.539 g/cm3 |
Melting Point: | 46-50 °C(lit.) |
Boiling Point: | 215.7 °C at 760 mmHg |
Flash Point: | 104.7 °C |
Solubility: | Slightly soluble in water. |
Appearance: | Beige powder |
Hazard Symbols: | Xi |
Risk Codes: | 52/53-36/37/38 |
Safety: | 61-37/39-26 |
Transport Information: | UN 2811 6.1/PG 3 |
PSA: | 12.89000 |
LogP: | 3.04180 |
2,3,5,6-tetrachloropyridine
2,3,5-trichloropyridine
Conditions | Yield |
---|---|
With 5%-palladium/activated carbon; hydrogen; potassium hydroxide In 5,5-dimethyl-1,3-cyclohexadiene; water at 60℃; under 4500.45 Torr; for 6h; Reagent/catalyst; Solvent; Pressure; Autoclave; | 99.1% |
With sodium hydroxide In benzene |
2,3,4,5,6-pentachloropyridine
A
2,3,6-trichloropyridine
B
2,3,5-trichloropyridine
C
2,3,5,6-tetrachloropyridine
Conditions | Yield |
---|---|
With ammonium chloride; dimethyl methane phosphonate; zinc In water at 85 - 90℃; Product distribution; other ammonium salts; other methylphosphonates/phosphates; | A 0.9% B 1% C 97.6% |
2,3,4,5-tetrachloro-pyridine
2,3,5-trichloropyridine
Conditions | Yield |
---|---|
With tetramethylammonium methylphosphonic acid methyl ester; dimethyl methane phosphonate; zinc In water at 85℃; other ammonium salts; other methylphosphonates;other solvent(s). Object of study: selectivity of reaction; | 96.4% |
With ammonium chloride; zinc In methanol; water at 72℃; for 2h; Solvent; Temperature; | 90% |
With pyridine; 5%-palladium/activated carbon; hydrogen In methanol; water at 50℃; under 3750.38 Torr; Reagent/catalyst; Temperature; Pressure; | 86.2% |
With tetramethylammonium methylphosphonic acid methyl ester; dimethyl methane phosphonate; zinc In water at 85℃; for 1h; Yield given; | |
With ammonium chloride; zinc In methanol; water at 70 - 80℃; Temperature; Solvent; Large scale; | 1.4 kg |
3,5,6-trichloro-2-hydrazinopyridine
2,3,5-trichloropyridine
Conditions | Yield |
---|---|
95% | |
With sodium hypochlorite; sodium hydroxide In water at 70 - 75℃; for 1h; Green chemistry; | 95% |
93% |
2,4,4-trichloro-4-formylbutyronitrile
2,3,5-trichloropyridine
Conditions | Yield |
---|---|
With hydrogenchloride; phosphorus pentachloride In N,N-dimethyl-formamide at 60 - 100℃; for 1h; | 89% |
With hydrogenchloride at 180℃; for 2h; | 85% |
With hydrogenchloride at 80℃; for 3h; | 82.1% |
3,5-Dichloro-2-pyridinol
2,3,5-trichloropyridine
Conditions | Yield |
---|---|
With trichlorophosphate at 190℃; for 3h; in sealed tube; | 87% |
2,2,4'-trichloro-5-oxopentanonitrile
2,3,5-trichloropyridine
Conditions | Yield |
---|---|
With hydrogenchloride; trichlorophosphate In N,N-dimethyl-formamide at 115℃; for 0.333333h; | 79% |
With trichlorophosphate In benzene at 190℃; for 1h; in autoclave; | 76% |
Multi-step reaction with 2 steps 1: 91 percent / dry HCl / dimethylformamide / 0.25 h / 110 °C 2: 87 percent / POCl3 / 3 h / 190 °C / in sealed tube View Scheme | |
Multi-step reaction with 3 steps 1: 90 percent / dry HCl / dibutyl ether / 1 h / 90 °C 2: 95 percent / triethylamine / benzene / 4 h / Heating 3: 87 percent / POCl3 / 3 h / 190 °C / in sealed tube View Scheme |
2,3,4,5,6-pentachloropyridine
2,3,5-trichloropyridine
Conditions | Yield |
---|---|
With tetrabutylammomium bromide; sodium hydroxide; zinc In toluene at 50℃; for 6h; Green chemistry; | 73% |
With ammonium hydroxide In toluene | |
With sodium hydroxide; zinc In benzene | |
With sodium hypochlorite; sodium hydrogencarbonate; hydrazine In propylene glycol dimethyl ether; water |
Conditions | Yield |
---|---|
copper(l) chloride In acetonitrile at 190℃; for 0.5h; | 65% |
copper(l) chloride In acetonitrile at 190℃; for 0.5h; | 65% |
With [bmim]BF4; copper(l) chloride In acetonitrile at 120℃; | 41% |
In acetonitrile at 105 - 190℃; Product distribution; various inorg. catalyst, various yield; | |
copper(l) chloride In acetonitrile at 120 - 175℃; for 19h; |
Conditions | Yield |
---|---|
With chlorine In cyclohexane at 75℃; for 1h; | A 9% B 62% C 4.5% |
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