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| | (E)-1,4-Dibromobut-2-ene Basic information |
| Product Name: | (E)-1,4-Dibromobut-2-ene | | Synonyms: | (2E)-1,4-Dibromo-2-butene;(E)-1,4-Dibromo-2-butene;1,4-Dibromo-2-butene, E;1,4-trans-Dibromobutene-2;2-Butene, 1,4-dibromo-, trans-;4-dibromo-(e)-2-buten;1,4-DIBROMO-2-PENTENE;Trans1butene4-dibroMo -2- | | CAS: | 821-06-7 | | MF: | C4H6Br2 | | MW: | 213.9 | | EINECS: | 212-472-7 | | Product Categories: | medical intermediates;aliskiren;Alkenyl;Halogenated Hydrocarbons;Organic Building Blocks;bc0001;821-06-7 | | Mol File: | 821-06-7.mol |  |
| | (E)-1,4-Dibromobut-2-ene Chemical Properties |
| Melting point | 48-51 °C(lit.) | | Boiling point | 205 °C(lit.) | | density | 1.9393 (estimate) | | refractive index | 1.5361 (estimate) | | Fp | 113°C | | storage temp. | 2-8°C | | solubility | Chloroform (Slightly), Methanol (Slightly) | | form | Crystals or Crystalline Powder | | color | colorless to slightly brown | | Water Solubility | slightly soluble | | BRN | 1719696 | | Stability: | Light Sensitive | | InChIKey | RMXLHIUHKIVPAB-OWOJBTEDSA-N | | CAS DataBase Reference | 821-06-7(CAS DataBase Reference) | | NIST Chemistry Reference | 2-Butene, 1,4-dibromo-, (E)-(821-06-7) | | EPA Substance Registry System | 2-Butene, 1,4-dibromo-, (2E)- (821-06-7) |
| Hazard Codes | T,C | | Risk Statements | 25-34-23/25 | | Safety Statements | 26-36/37/39-45-28A | | RIDADR | UN 2923 8/PG 2 | | WGK Germany | 2 | | RTECS | EM4725000 | | F | 8-19 | | Hazard Note | Toxic/Corrosive | | HazardClass | 6.1(b) | | PackingGroup | III | | HS Code | 29033990 |
| | (E)-1,4-Dibromobut-2-ene Usage And Synthesis |
| Chemical Properties | white to light yellow crystal powde | | Uses | (2E)-1,4-Dibromo-2-butene, is used as a reagent in the preparation of diaminoalkenes though copper-mediated diamination reaction. | | Synthesis Reference(s) | The Journal of Organic Chemistry, 36, p. 3324, 1971 DOI: 10.1021/jo00821a012 | | General Description | Crystals or white crystalline solid. | | Air & Water Reactions | (E)-1,4-Dibromobut-2-ene may be sensitive to exposure to light and air. Insoluble in water. | | Reactivity Profile | (E)-1,4-Dibromobut-2-ene is incompatible with strong oxidizers and strong bases. | | Fire Hazard | (E)-1,4-Dibromobut-2-ene is probably combustible. | | Purification Methods | Crystallise the dibromide from ligroin and/or distil it in a vacuum. [Beilstein 1 IV 79.] |
| | (E)-1,4-Dibromobut-2-ene Preparation Products And Raw materials |
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