Introduction：Basic information about 2,3-Dimethyl-2-butene CAS 563-79-1, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
2,3-Dimethyl-2-butene Basic information
| Product Name: | 2,3-Dimethyl-2-butene |
| Synonyms: | 2,3-dimethyl-but-2-ene;2,3-Dimethylbut-2-ene;2,3-Dimethylbutene-2;Tetramethylethene;2,3-DIMETHYL-2-BUTENE;TETRAMETHYLETHYLENE;2,3-DIMETHYL-2-BUTENE, 1.0M SOLUTION IN TETRAHYDROFURAN;2,3-DIMETHYL-2-BUTENE, STAB. |
| CAS: | 563-79-1 |
| MF: | C6H12 |
| MW: | 84.16 |
| EINECS: | 209-263-8 |
| Product Categories: | Acyclic;Alkenes;Organic Building Blocks |
| Mol File: | 563-79-1.mol |
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2,3-Dimethyl-2-butene Chemical Properties
| Melting point | -75 °C (lit.) |
| Boiling point | 73 °C (lit.) |
| density | 0.708 g/mL at 25 °C (lit.) |
| 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 |
| Specific Gravity | 0.708 |
| color | Clear colorless to slightly yellow |
| explosive limit | 1.2%(V) |
| Water Solubility | Soluble in water (0.071 g/L) |
| Sensitive | Air Sensitive |
| BRN | 1361357 |
| Stability: | Stable. Highly flammable - readily forms explosive mixtures with air. Note low flash point. Incompatible with strong acids, strong oxidizing agents, peroxy compounds. |
| InChI | 1S/C6H12/c1-5(2)6(3)4/h1-4H3 |
| InChIKey | WGLLSSPDPJPLOR-UHFFFAOYSA-N |
| SMILES | C\C(C)=C(\C)C |
| CAS DataBase Reference | 563-79-1(CAS DataBase Reference) |
| NIST Chemistry Reference | 2-Butene, 2,3-dimethyl-(563-79-1) |
| EPA Substance Registry System | 2-Butene, 2,3-dimethyl- (563-79-1) |
Safety Information
| Hazard Codes | F,Xn,C |
| Risk Statements | 11-65-36/37/38-22-19-40-36/37 |
| Safety Statements | 16-33-62-9-36/37/39-26-36/37 |
| RIDADR | UN 3295 3/PG 2 |
| WGK Germany | 3 |
| F | 10-23 |
| Autoignition Temperature | 754 °F |
| Hazard Note | Extremely Flammable/Corrosive/Harmful |
| TSCA | TSCA listed |
| HazardClass | 3 |
| PackingGroup | II |
| HS Code | 29012980 |
| Storage Class | 3 - Flammable liquids |
| Hazard Classifications | Asp. Tox. 1
Flam. Liq. 2 |
2,3-Dimethyl-2-butene Usage And Synthesis
| 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.] |
2,3-Dimethyl-2-butene Preparation Products And Raw materials
| 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 |
