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CAS No. : | 34598-50-0 | MDL No. : | MFCD06808667 |
Formula : | C9H9BrO | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | DRXIUUZVRAOHBS-UHFFFAOYSA-N |
M.W : | 213.07 | Pubchem ID : | 13486299 |
Synonyms : |
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Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P280-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302 | Packing Group: | N/A |
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 |
---|---|---|
With pyridine; In (2S)-N-methyl-1-phenylpropan-2-amine hydrate; diethyl ether; toluene; | 5-Bromoindene A 1 L three-neck round bottom flask equipped with a condenser, magnetic stir bar, nitrogen inlet, and a thermometer was charged with 5-bromo-1-indanol (56.5 g, 0.265 mol), toluene (300 mL), pyridine (250 mL, 3.1 mol), and p-toluenesulfonyl chloride (55.3 g, 0.29 mol). The mixture was stirred and heated to reflux while dehydration progress was followed by GC. After 7 hours at reflux the dark colored reaction mixture was cooled, quenched by pouring over ice-water (700 mL) containing HCI (12M, 200 mL) and extracted several times with diethyl ether (3 x 250 mL). The combined diethyl ether extracts were washed repeatedly with water, 5% sodium bicarbonate (aqueous), and water then dried over anhydrous magnesium sulfate. Evaporation of diethyl ether followed by vacuum distillation (80 C / 0.5 mm Hg) gave 5-bromoindene (24.0 g, 99+% purity by GC) as a colorless oil. 1H-NMR (CD2Cl2, 500 MHz) delta 7.59 (br s, 1H); 7.38 (dd, JAB=1.5, 8 Hz, 1H), 7.26 (d, JAB=8 Hz, 1H); 6.84 (m, 1H); 6.56 (m, 1H); 3.39 (s, 2H). |
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