Name | 2,5-Dibromo-3-octylthiophene |
Synonyms | M8062 2,5-Dibromo-3-octyL DibroMo-3-octylthioph 2,5-Dibromo-3-octylthiophene 2,5-DIBROMO-3-OCTYLTHIOPHENE 2,5-DibroMo-3-n-octylthiophene Thiophene, 2,5-dibromo-3-octyl- 4-FLUORO-2-TRIFLUOROMETHYLPHENYL ISOTHIO |
CAS | 149703-84-4 |
InChI | InChI=1/C12H18Br2S/c1-2-3-4-5-6-7-8-10-9-11(13)15-12(10)14/h9H,2-8H2,1H3 |
Molecular Formula | C12H18Br2S |
Molar Mass | 354.14 |
Density | 1.44 g/mL at 25 °C (lit.) |
Boling Point | 316 °C (lit.) |
Flash Point | 230°F |
Water Solubility | Slightly soluble in water. |
Vapor Presure | 0.000101mmHg at 25°C |
Storage Condition | 2-8°C |
Refractive Index | n20/D 1.548(lit.) |
Physical and Chemical Properties | WGK Germany:3 |
Safety Description | 24/25 - Avoid contact with skin and eyes. |
WGK Germany | 3 |
HS Code | 29349990 |
Introduction | 2,5-dibromo-3-octylthiophene is an organic intermediate, which can be obtained by bromination of 3-octylthiophene. |
preparation | slowly add N-bromosuccinimide (130 g) to a solution of 3-octylthiophene (65g, 333 mmol) in DMF(200 ml) at 0°C through a dropping funnel, 733 mmol) solution in DMF(200 ml). Stir the mixture in the dark for 72 hours. pour the reaction mixture on NaOH solution (300mL,2.5M) and stir at 0 ℃. The mixture was extracted with ether, and the combined organic layer was washed with NaOH(2.5M) and brine. The organic layer was dried with MgSO 4 and the solvent was evaporated to obtain a yellow oily product of 2,5-dibromo-3-octylthiophene (yield 86%,101g). |
use | conductive polymer precursor. |