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CAS No. : | 89490-05-1 | MDL No. : | MFCD02179497 |
Formula : | C6H11BO2 | Boiling Point : | 261.9°C at 760 mmHg |
Linear Structure Formula : | - | InChI Key : | N/A |
M.W : | 125.96 g/mol | Pubchem ID : | 3862902 |
Synonyms : |
|
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P280-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-H315-H319-H332-H335 | Packing Group: | N/A |
GHS Pictogram: |
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Yield | Reaction Conditions | Operation in experiment |
---|---|---|
81% | With iodine; magnesium In tetrahydrofuran at 40 - 55℃; Inert atmosphere | Under the protection of nitrogen, adding magnesium metal in the reaction bottle 8.0g (0.33mol) and several grain of iodines, prior to dropping funnel in the uniformly mixed methoxy boronic acid frequency that alcohol ester 56.9g (0.36mol), cyclohexene-1-polybromide 48.3g (0.3mol) and anhydrous tetrahydrofuran 300 ml, the temperature rising to outside bath 40-45 degrees, to a first 25 ml mixed solution, after color treats the iodine triggered evanishment standard, the oven-keeping 40-55 degrees between the completion of the dropping of the remaining mixed solution, then subsequently gradually heated up to reflow to continue reaction 2-3 hours, disappearance of the raw material after detection GC, to the reaction liquid 0-10 degree, slowly adding saturated NH4Cl quenching, adjusting for PH 5-6, separating the organic layer, the water layer using MTBE 150 ml extraction a, combined with the organic layer, the saturated salt water washing, solvent evaporation to dryness of the organic layer is concentrated under reduced pressure, then replace the high vacuum pump, collecting 80-83 °C fraction, get colorless transparent liquid 50.5g, yield 81percent |
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