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CAS No. : | 54109-03-4 | MDL No. : | MFCD09842447 |
Formula : | C8H5ClO2 | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | UBRQBEBBOSKYLQ-UHFFFAOYSA-N |
M.W : | 168.58 | Pubchem ID : | 241737 |
Synonyms : |
|
Signal Word: | Warning | Class: | |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | |
Hazard Statements: | H302-H315-H319-H335 | Packing Group: | |
GHS Pictogram: |
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* 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 |
---|---|---|
83% | With phenylsilane; potassium hydroxide; In tetrahydrofuran; for 4h;Schlenk technique; Inert atmosphere; Reflux; | General procedure: Isobenzofuran-1(3H)-one (0.4 mmol), KOH (0.4 mmol), PhSiH3 (1.2 mmol), dried THF (2 mL) were charged in a Schlenk tube(15 mL) under N2 atmosphere. The mixture was refluxed for 4 h. After cooling to rt, the reaction was quenched with EtOH(0.5-1 mL). Solvent was removed under reduced pressure and the crude residue was purified by column chromatography on silica gel with petroleum ether-ethyl acetate as the eluent to afford the desired product. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With sodium hydrogensulfite; sodium chloride; In water; ethyl acetate; for 0.25h; | 100mL and 150mL o-xylene was added dichloromethane 1000mL four-necked flask, 3g of zinc powder, placed on a magnetic stirrer, to 200r / min speed stirring 10min; At the end of the flask was introduced chlorine gas, aeration rate was washed with 10mL / min, aeration time was 10min, the reaction was allowed to stand after the aeration 1h, with a concentration of 10percent sodium hydroxide solution to colorless, into a distillation apparatus, was heated to 70 , dichloromethane was removed by distillation, to precipitate a white solid; white solid was placed in the above-described three-necked flask equipped with a thermometer, a condenser and a stirrer was charged with 50g and 10g of glacial acetic acid and potassium permanganate 3g solid sodium hydroxide, transferred to the water bath temperature was raised to 70 deg.] C shaking bed oscillating reaction 1h, placed in a rotary evaporator, heated to 80 , rotary evaporated to remove acetic acid to give white crystals; added 200mL ethyl acetate equipped with a stirrer and a thermometer four flask, 50g and 20g of sodium chloride sodium hydrogen sulfite and 800mL of distilled water, start agitator 500r / min stirring speed at the stirring process, the white crystals obtained above was added 5 min the flask, stirring was continued for 10min; after stirring was complete, 300mL layered ethyl acetate, poured into a separatory funnel and the organic layer was separated, was added 20mL of 10percent concentration sodium hydroxide solution to wash pale yellow, ethyl acetate was distilled off; the mixture of ethyl acetate was distilled off after added 20g of iodine chlorobenzene and 3g magnesium, and 50mL tetrahydrofuran, placed in an ultrasonic shaker, the ultrasonic oscillating reaction 10min, ultrasonic frequency of 25KHz, ultrasonic power 100W, ultrasound was added 50mL reaction was continued concentration of 95percent ethanol solution and immediately transferred to an ice bath pot was allowed to stand at 4 6h, until no precipitation, transferred to a Buchner funnel after filtration to give 1- (4-iodophenyl) -5-chloro-isobenzofuran . |
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