|
|
| | 2,3-Dimethyl-2-butene Basic information |
| Product Name: | 2,3-Dimethyl-2-butene | | Synonyms: | 2,3-Dimethylbutene-2;Tetramethylethene;2,3-DIMETHYL-2-BUTENE;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;2,3-dimethyl-2-butene solution | | 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 |  |
| | 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 | | Henry's Law Constant | 2.5×10-5 mol/(m3Pa) at 25℃, Yaws (2003) | | 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) |
| 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 |
|