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CAS No.: | 140-76-1 |
---|---|
Name: | 2-Methyl-5-vinylpyridine |
Article Data: | 20 |
Molecular Structure: | |
Formula: | C8H9N |
Molecular Weight: | 119.166 |
Synonyms: | 2-Picoline,5-vinyl- (8CI);2-MVP;5-Ethenyl-2-methylpyridine;BRN 0106229;HSDB 6325;MVP; |
EINECS: | 205-432-5 |
Density: | 0.954 g/cm3 |
Melting Point: | -12.0 °C |
Boiling Point: | 175.525 °C at 760 mmHg |
Flash Point: | 56.618 °C |
Appearance: | Clear to faintly opalescent liquid |
PSA: | 12.89000 |
LogP: | 2.03300 |
2-methyl-5-vinylpyridine
Conditions | Yield |
---|---|
Stage #1: 1-(6-methylpyridin-3-yl)ethanol maleate With thionyl chloride; sodium hydroxide In Isopropyl acetate Stage #2: With potassium hydroxide In 1-methyl-pyrrolidin-2-one at 50℃; for 4h; | 99% |
Conditions | Yield |
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tetrakis(triphenylphosphine) palladium(0) In tetrahydrofuran; N,N-dimethyl-formamide at 20 - 100℃; Inert atmosphere; | 47% |
Conditions | Yield |
---|---|
With cerium(IV) oxide; carbon dioxide at 700℃; Siliciumdioxid; | |
With carbon dioxide; tungsten(VI) oxide at 700℃; Siliciumdioxid; | |
With zinc oxide-chromium oxide-iron oxide-aluminium oxide; steam; potassium oxide at 600℃; | |
With chromium corundum at 600℃; |
2-methyl-5-vinylpyridine
Conditions | Yield |
---|---|
With calcium hydrogen phosphate at 450℃; | |
With potassium hydrogensulfate at 230℃; |
2-methyl-5-vinylpyridine
Conditions | Yield |
---|---|
With acetone at 570℃; Pyrolysis; |
Conditions | Yield |
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at 580 - 600℃; Leiten ueber durch Kaliumoxid aktivierte Zinkoxid-Chromoxid-Eisenoxid-Aluminiumoxid-Katalysatoren; |
5-ethyl-2-methyl-pyridine
A
2-methyl-5-vinylpyridine
B
pyridine-3-carbonitrile
C
5-ethyl-pyridine-2-carbonitrile
Conditions | Yield |
---|---|
With ammonia; water; oxygen; vanadia; titanium(IV) oxide at 380℃; Product distribution; Further Variations:; reaction times; |
2-methyl-5-formylpyridine
Methyltriphenylphosphonium bromide
2-methyl-5-vinylpyridine
Conditions | Yield |
---|---|
Stage #1: Methyltriphenylphosphonium bromide With potassium tert-butylate In diethyl ether at 5℃; for 1h; Stage #2: 2-methyl-5-formylpyridine In diethyl ether at 10℃; for 0.5h; Solvent; | 38.2 g |
Stage #1: Methyltriphenylphosphonium bromide With n-butyllithium In tetrahydrofuran; hexane at -78 - 20℃; Stage #2: 2-methyl-5-formylpyridine In tetrahydrofuran; hexane at 0 - 20℃; |
2-methyl-5-vinylpyridine
Conditions | Yield |
---|---|
With potassium hydroxide In tert-butyl methyl ether; water pH=~ 14; Product distribution / selectivity; |
Conditions | Yield |
---|---|
With caesium carbonate; triphenylphosphine In water at 75 - 80℃; for 19h; Inert atmosphere; | |
With caesium carbonate; triphenylphosphine In water at 75 - 80℃; for 19h; Inert atmosphere; | |
With caesium carbonate; triphenylphosphine In water at 75 - 80℃; for 19h; Inert atmosphere; |
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The Molecular Structure of 2-Methyl-5-vinylpyridine (CAS NO.140-76-1):
Empirical Formula: C8H9N
Molecular Weight: 119.1638
IUPAC Name: 5-ethenyl-2-methylpyridine
Nominal Mass: 119 Da
Average Mass: 119.1638 Da
Monoisotopic Mass: 119.073499 Da
Index of Refraction: 1.555
Molar Refractivity: 40.09 cm3
Molar Volume: 124.8 cm3
Surface Tension: 35.1 dyne/cm
Density: 0.954 g/cm3
Flash Point: 56.6 °C
Enthalpy of Vaporization: 39.49 kJ/mol
Boiling Point: 175.5 °C at 760 mmHg
Vapour Pressure: 1.53 mmHg at 25°C
Synonyms: Pyridine, 2-methyl-5-vinyl ; 2-MVP ; 2-Methyl-5-vinylpyridine ; 2-Picoline, 5-vinyl- ; 5-20-06-00218 (Beilstein Handbook Reference) ; 5-Ethenyl-2-methylpyridine ; BRN 0106229 ; EINECS 205-432-5 ; HSDB 6325 ; MVP ; Pyridine, 2-methyl-5-vinyl- ; Pyridine, 5-ethenyl-2-methyl- ; Pyridine, 5-ethenyl-2-methyl- ; Pyridine, 2-methyl-5-vinyl-
2-Methyl-5-vinylpyridine (CAS NO.140-76-1) is used as a monomer for resins, as an oil additive, ore flotation agent; and dye acceptor.
Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
---|---|---|---|---|---|
mammal (species unspecified) | LD50 | oral | 1250mg/kg (1250mg/kg) | Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 39(4), Pg. 86, 1974. | |
mouse | LC50 | inhalation | 213mg/m3/2H (213mg/m3) | "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 88, 1982. | |
mouse | LD50 | oral | 775mg/kg (775mg/kg) | "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 88, 1982. | |
mouse | LD50 | subcutaneous | 532mg/kg (532mg/kg) | "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 88, 1982. | |
rabbit | LD50 | skin | 800uL/kg (0.8mL/kg) | American Industrial Hygiene Association Journal. Vol. 30, Pg. 470, 1969. | |
rat | LC50 | inhalation | 189mg/m3/2H (189mg/m3) | "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 88, 1982. | |
rat | LD50 | oral | 1300uL/kg (1.3mL/kg) | American Industrial Hygiene Association Journal. Vol. 30, Pg. 470, 1969. | |
rat | LD50 | subcutaneous | 1290mg/kg (1290mg/kg) | "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 88, 1982. |
RIDADR: 2810
HazardClass :6.1(b)
PackingGroup: III
2-Methyl-5-vinylpyridine (CAS NO.140-76-1) is moderately toxic by ingestion, inhalation, and absorption through the skin.