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| 2,3-Dimethyl-2-butene Basic information |
| 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. | | 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) |
| 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 |
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