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CAS No. : | 827-08-7 | MDL No. : | MFCD00039209 |
Formula : | C6Br2F4 | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | IPLUWQPTPKNBRD-UHFFFAOYSA-N |
M.W : | 307.87 | Pubchem ID : | 70007 |
Synonyms : |
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Signal Word: | Warning | Class: | |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | |
Hazard Statements: | H315-H319-H335 | Packing Group: | |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In n-butyllithium; diethyl ether; chloroform-d1; hexane; water; pentane; | EXAMPLE 1 Synthesis of 2,2'-dibromooctafluorobiphenyl 10 g of <strong>[827-08-7]1,2-dibromotetrafluorbenzene</strong> (32 mmol) together with 100 ml of diethyl ether are placed in a reaction vessel and cooled to -78 C. 15 ml of n-butyllithium (2.5 M in hexane) are added dropwise and the mixture is stirred for 1 hour. An excess of titanium tetrachloride is subsequently added and the mixture is stirred for another 4 hours at -78 C. The suspension is allowed to warm to room temperature and is stirred for another 10 hours. It is then hydrolyzed using H2O. The aqueous phase is shaken a number of times with diethyl ether and the organic phases are subsequently combined and dried over magnesium sulfate. The solvent is taken off and the residue is recrystallized from a 1:1 mixture of diethyl ether/n-pentane. 19F-NMR CDCl3: -127.5 ppm (m, 2F, 3,3'-F), -134.6 ppm (m, 2F, 6,6'-F), -149.9 ppm (m, 2F, 4,4'-F), -154.3 ppm (m, 2F, 5,5'-F) |