ChemicalBook--->CAS DataBase List--->563-79-1

563-79-1

563-79-1 Structure

563-79-1 Structure
IdentificationMore
[Name]

2,3-Dimethyl-2-butene
[CAS]

563-79-1
[Synonyms]

2,3-DIMETHYL-2-BUTENE
TETRAMETHYLETHYLENE
(CH3)2C=C(CH3)2
1,1,2,2-Tetramethylethylene
2,3-dimethyl-2-buten
2,3-dimethyl-but-2-ene
2,3-Dimethylbut-2-ene
2,3-Dimethylbutene-2
Tetramethylethene
2,3-DIMETHYL-2-BUTENE, 1.0M SOLUTION IN TETRAHYDROFURAN
2,3-DIMETHYL-2-BUTENE, STAB.
2,3-DIMETHYL-2-BUTENE, 99+%
2,3-DIMETHYL-2-BUTENE 1.0 M IN THF
2-Butene, 2,3-dimethyl-
2,3-dimethyl-2-butene solution
2,3-DIMETHYL-2-BUTENE MIN 97%
tetramethyl ethylene,2,3-dimethyl-2-butene
1,1,2,2-Tetramethylethene
[EINECS(EC#)]

209-263-8
[Molecular Formula]

C6H12
[MDL Number]

MFCD00008897
[Molecular Weight]

84.16
[MOL File]

563-79-1.mol
Chemical PropertiesBack Directory
[Appearance]

colourless liquid
[Melting point ]

-75 °C (lit.)
[Boiling point ]

73 °C (lit.)
[density ]

0.857 g/mL at 25 °C
[vapor pressure ]

215 mm Hg ( 37.7 °C)
[refractive index ]

n20/D 1.412(lit.)
[Fp ]

2 °F
[storage temp. ]

2-8°C
[solubility ]

0.071g/l
[form ]

Liquid
[color ]

Clear colorless to slightly yellow
[Specific Gravity]

0.708
[Stability:]

Stable. Highly flammable-readily forms explosive mixtures with air. Note low flash point. Incompatible with strong acids, strong oxidizing agents, peroxy compounds.
[explosive limit]

1.2%(V)
[Water Solubility ]

Soluble in water (0.071 g/L)
[Sensitive ]

Air Sensitive
[BRN ]

1361357
[CAS DataBase Reference]

563-79-1(CAS DataBase Reference)
[NIST Chemistry Reference]

2-Butene, 2,3-dimethyl-(563-79-1)
[EPA Substance Registry System]

563-79-1(EPA Substance)
Safety DataBack Directory
[Hazard Codes ]

F,Xn,C
[Risk Statements ]

R11:Highly Flammable.
R65:Harmful: May cause lung damage if swallowed.
R36/37/38:Irritating to eyes, respiratory system and skin .
R22:Harmful if swallowed.
R19:May form explosive peroxides.
[Safety Statements ]

S16:Keep away from sources of ignition-No smoking .
S33:Take precautionary measures against static discharges .
S62:If swallowed, do not induce vomiting: seek medical advice immediately and show this container or label .
S9:Keep container in a well-ventilated place .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
[RIDADR ]

UN 3295 3/PG 2
[WGK Germany ]

3
[F ]

10-23
[Autoignition Temperature]

754 °F
[Hazard Note ]

Extremely Flammable/Corrosive/Harmful
[TSCA ]

Yes
[HazardClass ]

3
[PackingGroup ]

II
[HS Code ]

29012980
Raw materials And Preparation ProductsBack Directory
[Raw materials]

butene-->STILBENE-->2,3-Diphenyl-2-butene-->2-Benzhydrylidenepropane-->ISOPROPYLPHENYL SULFONE-->2,3-Dimethyl-1-butene-->2,3-Dimethylbutane-->3,3-Dimethyl-1-butene-->Tetraphenylethylene-->2,3-DIMETHYL-1,3-BUTADIENE-->2-METHYL-1-PHENYLPROPENE
[Preparation Products]

pinacolone,tert-butyl methy1 ketone,3,3-dimethyl-2-butyl ketone-->Ethyl 2,2,3,3-tetramethylcyclopropane-carboxylate-->1,1,2-Trimethylpropylborane
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

2,3-Dimethyl-2-butene(563-79-1).msds
Hazard InformationBack Directory
[Chemical Properties]

colourless liquid
[Uses]

2,3-Dimethyl-2-butene was used in the preparation of thexyl NHC-borane (diMe-Imd-BH2thexyl).
[General Description]

2,3-Dimethyl-2-butene undergoes hydrolysis to form hydroxyl radical.
[Purification Methods]

Purify it by GLC on a column of 20% squalene on chromosorb P at 50o [Flowers & Rabinovitch J Phys Chem 89 563 1985]. Also wash it with 1M NaOH solution followed by H2O. Dry it over Na2SO4, distil it over powdered KOH under nitrogen and pass it through activated alumina before use. [Woon et al. J Am Chem Soc 108 7990 1986, Wong et al. J Am Chem Soc 109 3428 1987, Beilstein 1 IV 853.]
Spectrum DetailBack Directory
[Spectrum Detail]

2,3-Dimethyl-2-butene(563-79-1)MS
2,3-Dimethyl-2-butene(563-79-1)1HNMR
2,3-Dimethyl-2-butene(563-79-1)13CNMR
2,3-Dimethyl-2-butene(563-79-1)IR1
2,3-Dimethyl-2-butene(563-79-1)Raman
Well-known Reagent Company Product InformationBack Directory
[Acros Organics]

2,3-Dimethyl-2-butene, 98%(563-79-1)
[Alfa Aesar]

Tetramethylethylene, 97%(563-79-1)
[Sigma Aldrich]

563-79-1(sigmaaldrich)
[TCI AMERICA]

2,3-Dimethyl-2-butene,>96.0%(GC)(563-79-1)
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