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CAS No.: | 695-98-7 |
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Name: | 2,3,5-Collidine |
Article Data: | 17 |
Molecular Structure: | |
Formula: | C8H11N |
Molecular Weight: | 121.182 |
Synonyms: | 2,3,5-Trimethylpyridine; |
EINECS: | 211-786-1 |
Density: | 0.921 g/cm3 |
Melting Point: | -56.98°C (estimate) |
Boiling Point: | 187.3 °C at 760 mmHg |
Flash Point: | 42.8 °C |
Solubility: | slightly soluble in water |
Appearance: | clear colourless to very slightly yellow liquid |
Hazard Symbols: | Xn, Xi, T |
Risk Codes: | 36/37/38-20/21/22 |
Safety: | 26-36-36/37 |
PSA: | 12.89000 |
LogP: | 2.00680 |
2,3,5-trimethyl-pyridine
Conditions | Yield |
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With potassium tert-butylate In tetrahydrofuran for 1h; Reflux; | 91% |
Conditions | Yield |
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With Raney nickel at 180℃; for 0.5h; Concentration; Flow reactor; Green chemistry; regioselective reaction; | 90% |
2,4-dichloro-3,5,6-trimethylpyridine
2,3,5-trimethyl-pyridine
Conditions | Yield |
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With ammonium hydroxide; hydrogen; palladium on activated charcoal In ethanol under 2250.2 Torr; for 3h; further reagent zinc powder, H2SO4; | 83% |
2,4-dichloro-3,5,6-trimethylpyridine
A
2,3,5-trimethyl-pyridine
B
4-chloro-2,3,5-trimethylpyridine
C
2-chloro-3,5,6-trimethylpyridine
Conditions | Yield |
---|---|
With sulfuric acid; hydrogen; palladium on activated charcoal In ethanol at 20℃; under 1500.1 Torr; | A n/a B 78% C n/a |
Conditions | Yield |
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With potassium hexafluorophosphate; [ruthenium(II)(η6-1-methyl-4-isopropyl-benzene)(chloride)(μ-chloride)]2; copper diacetate In tert-Amyl alcohol at 100℃; for 24h; Inert atmosphere; Schlenk technique; regioselective reaction; | 45% |
Conditions | Yield |
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With diethyl ether; toluene |
3-chloromethyl-2,5-dimethyl-pyridine
2,3,5-trimethyl-pyridine
Conditions | Yield |
---|---|
With methanol; palladium on activated charcoal Hydrogenation; |
N-methyl-3,5-dimethylpyridinium iodide
A
2,3,5-trimethyl-pyridine
B
2,3,5,6-tetramethylpyridine
Conditions | Yield |
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at 300 - 320℃; im Rohr; | |
at 300 - 320℃; im Rohr; |
Conditions | Yield |
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With aluminum oxide; ammonia at 330 - 340℃; |
Conditions | Yield |
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With piperidine hydrochloride In toluene at 200℃; for 2h; autoclave; | 6 % Chromat. |