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CAS No. : | 400607-31-0 | MDL No. : | MFCD22581299 |
Formula : | C25H19BO2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | CPFALCJMNUHBHP-UHFFFAOYSA-N |
M.W : | 362.23 | Pubchem ID : | 59343999 |
Synonyms : |
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Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-H315-H319-H335 | 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 |
---|---|---|
4 g | With n-butyllithium In tetrahydrofuran at -78℃; | Take 10 grams of 2-bromo-9,9-diphenylfluorene and 100 ml of anhydrous tetrahydrofuran was added to a 1 liter flask,Cooled to -78 ° C with liquid nitrogen,25.2 ml of n-butyllithium and trimethyl borate are slowly added dropwise with stirring,After the natural return to room temperature,Add appropriate amount of dilute hydrochloric acid hydrolysis,Then extracted with ethyl acetate,The organic layer was separated and dried over anhydrous sodium sulfate. The solvent was removed under reduced pressure and 4 g of product was eluted with hexane. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
4 g | Stage #1: With n-butyllithium In tetrahydrofuran at -78℃; Stage #2: With hydrogenchloride In tetrahydrofuran |
Take 10g of 2-bromo-9,9-diphenylfluorene and 100ml of anhydrous tetrahydrofuran into a 1L flask.The liquid nitrogen was cooled to -78°C, and 25.2 ml of n-butyllithium and trimethyl borate were slowly added dropwise with stirring. After the addition, the mixture was naturally returned to room temperature and added with an appropriate amount of dilute hydrochloric acid to hydrolyze ethyl acetate (Ethyl acetate). ) Extraction, separation of the organic layer, drying over anhydrous sodium sulfate, removal of the solvent under reduced pressure, and precipitation of 4 g of product as hexane. |