2-Methyl-2-butene

Base Information

• Chemical Name: 2-Methyl-2-butene
• CAS No.: 513-35-9
• Molecular Formula: C5H10
• Molecular Weight: 70.1344
• Hs Code.: 29012900
• European Community (EC) Number: 208-156-3
• NSC Number: 74118
• UN Number: 2460,1108
• UNII: HR68LQ4T3X
• DSSTox Substance ID: DTXSID8027165
• Nikkaji Number: J6.280D
• Wikipedia: 2-Methyl-2-butene
• Wikidata: Q2187069
• Mol file: 513-35-9.mol

Synonyms:2-Methyl-2-butene;2-Methylbut-2-ene;513-35-9;AMYLENE;Trimethylethylene;2-Butene, 2-methyl-;n-Amylene;3-Methyl-2-butene;2-Methylbutene-2;1,1,2-Trimethylethylene;Ethylene, trimethyl-;beta-Isoamylene;.beta.-Isoamylene;Amylene (VAN);MFCD00009276;NSC 74118;UNII-HR68LQ4T3X;HR68LQ4T3X;(CH3)2C=CHCH3;HSDB 2072;EINECS 208-156-3;NSC-74118;UN2460;AI3-37711;EC 208-156-3;2-MB-2;28265-98-7;b-isoamylene;iso-amylene;Methyl butene;trimethyl ethene;ss -Isoamylene;2-methyl2-butene;P1W;2-methyl 2-butene;2-methyl-2 butene;2-Methyl-2-buten;2-methy-but-2-ene;2-methyl-but-2-ene;1,2-Trimethylethylene;2-Buteno, 2-metil-;AMYLENE [HSDB];Methyl-2-butene, 2-;AMYLENE [MI];2-Methyl-2-butene [UN2460] [Flammable liquid];DTXSID8027165;CHEBI:28798;CHEBI:53406;CHEBI:77916;WLN: 2UY1&1;NSC74118;AKOS009157092;UN 2460;2-Methyl-2-butene, analytical standard;2-Methyl-2-butene, >=95.0% (GC);2-Methyl-2-butene, technical grade, 90%;M0708;P0067;EN300-50207;2-Methyl-2-butene, Technical Grade 90per cent;A828541;Q2187069;2-Methyl-2-butene, >=99%, purified by redistillation;2-Methyl-2-butene, tech. 90%, remainder mainly 2-methyl-1-butene

Chemical Property of 2-Methyl-2-butene

Chemical Property:

• Appearance/Colour: clear colorless liquid with a petroleum-like odor
• Vapor Pressure: 25.7 psi ( 55 °C)
• Melting Point: -134 °C
• Refractive Index: n20/D 1.385(lit.)
• Boiling Point: 36.025 °C at 760 mmHg
• Flash Point: -45.556 °C
• PSA: 0.00000
• Density: 0.671 g/cm³
• LogP: 1.97250
• Storage Temp.: Flammables area
• Water Solubility.: Miscible with alcohol, benzene, ligroin, ethylene oxide and ether. Immiscible with water.
• XLogP3: 2.3
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 70.078250319
• Heavy Atom Count: 5
• Complexity: 38
• Transport DOT Label: Flammable Liquid

Purity/Quality:

98% ^*data from raw suppliers

2-Methyl-2-butene,TechnicalGrade90% ^*data from reagent suppliers

Safty Information:

• Pictogram(s): F+,Xn,N
• Hazard Codes: F,Xn,N,F+
• Statements: 11-22-65-51/53-12-36/37/38-19-68-67-38-52/53-40-36/37
• Safety Statements: 45-9-61-33-16-36/37/39-26-62-36/37

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Other Classes -> Aliphatics, Unsaturated
• Canonical SMILES: CC=C(C)C
• Description: 2-Methyl-2-butene (also named as Amylene) is an alkene hydrocarbon with the molecular formula C5H10. It is a colorless to pale yellow clear liquid. It can be used as a free radical scavenger in trichloromethane and dichloromethane. It was used for the alkylation of 3-methylthiophene over a zeolitic catalyst. It was also used as a precursor of peroxyacetyl nitrate for calibration purpose.
• Uses: 2-Methyl-2-butene is used to prepare 3-Brom-2.3-dimethyl-1.1-dicyan-butan in the presence of 2,2'-azobis-(2,4-dimethyl-4-methoxyvaleronitrile) as a catalyst. It may be employed as precursor for peroxyacetyl nitrate for the calibration purposes.

Technology Process of 2-Methyl-2-butene

There total 481 articles about 2-Methyl-2-butene which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 84.0%

tert-Amyl alcohol (75-85-4) + 1,3-bis(p-nitrophenyl)-2-thia-1,3-diazaallene (15148-19-3) → 2-methyl-but-2-ene (513-35-9) + 2-Methyl-1-butene (563-46-2) + 4-nitro-aniline (100-01-6,104810-17-5) + N-tert-pentyl-p-nitroaniline (174275-05-9)

Guidance literature:

With (t-C₅H₁₁O)3Al; In benzene; at 90 ℃; for 4h; Mechanism; further alcohols and reagents, temp. and time;

Reference yield: 84.0%

tert-Amyl alcohol (75-85-4) + N-sulphinyl-p-nitroaniline (13165-67-8,52866-95-2) → 2-methyl-but-2-ene (513-35-9) + 2-Methyl-1-butene (563-46-2) + 4-nitro-aniline (100-01-6,104810-17-5) + N-tert-pentyl-p-nitroaniline (174275-05-9)

Guidance literature:

at 90 ℃; for 2.5h; Mechanism; further tert. alcohols;

Reference yield: 28.72%

methylbutane (78-78-4) → 2-methyl-but-2-ene (513-35-9) + penta-1,3-diene (504-60-9,17410-45-6,25212-15-1,64940-84-7) + cyclopenta-1,3-diene (542-92-7,25568-84-7,7313-32-8) + 2-Methyl-1-butene (563-46-2) + 3-Methyl-1-butene (563-45-1) + pentane (109-66-0,8031-35-4,9078-70-0) + isoprene (78-79-5,9003-31-0)

Guidance literature:

With platinum-aluminum catalyst; at 600 ℃; Gas phase;

DOI:10.1134/S1070427208090218

upstream raw materials:

2-ethyl-2-methyloxirane

pyridine

2-bromo-2-methylbutane

α-picoline

Downstream raw materials:

2-tert-pentyl-thiophene

tert-Amyl methyl ether

tert-butyl tert-amyl peroxide

isovaleric acid tert-pentyl ester

Refernces

• 1、 Minachev, Kh. M.,Maksimov, A. I.,Mishin, I. V.,Senderov, E. E.,Levitskii, I. I.. "DEHYDRATION OF METHYLBUTANOLS ON MORDENITES". . p. 1346 - 1351. Retrieved 1984.
• 2、 Mitsutomi. "". . p. 1525. Retrieved 1961.
• 3、 Markovic, Dean,Vogel, Pierre. "Polysulfones: Catalysts for alkene isomerization". . p. 2928 - 2930. Retrieved 2004.
• 4、 Simons et al.. "". . p. 1023. Retrieved 1963.
• 5、 Vollmer, D. L.,Gross, M. L.. "Reactions of Propene and Cyclopropane Radical Cations with Neutral Ethylene". . p. 185 - 192. Retrieved 1993.
• 6、 Stimson,Watson. "-". . p. 3920. Retrieved 1960.
• 7、 Krause,Pavlov,Rihko-Struckmann,Linnekoski. "Vapor-liquid and chemical reaction equilibria in the synthesis of 2-methoxy-2-methylbutane (TAME)". . p. 1030 - 1035. Retrieved 2000.
• 8、 Butt,Fish. "". . p. 205. Retrieved 1966.
• 9、 Fraser,Hoffmann. "-". . p. 561. Retrieved 1967.
• 10、 Rihko, Liisa K.,Linnekoski, Juha A.,Krause, A. Outi I.. "Reaction Equilibria in the Synthesis of 2-Methoxy-2-methylbutane and 2-Ethoxy-2-methylbutane in the Liquid Phase". . p. 700 - 704. Retrieved 1994.