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CAS No. : | 171364-81-1 | MDL No. : | MFCD05863922 |
Formula : | C14H19BO3 | Boiling Point : | No data available |
Linear Structure Formula : | CH3COC6H4B(OC(CH3)2C(CH3)2O) | InChI Key : | BATKIZWNRQGSKE-UHFFFAOYSA-N |
M.W : | 246.11 | Pubchem ID : | 2760596 |
Synonyms : |
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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 |
---|---|---|
A bottom flask was charged with magnesium (148 mg, 6.09 mmoi) and anhydrous THF (0.5 mL),to the stirred mixture was added isopropylmagnesium chloride solution (catalytic amount), then asolution of i-hromo-3-cyclopropyibenzee (1 g, 5.07 mmoi) in THF (4.5 mL) was added slowlywith an injection syringe under nitrogen to keep the temperature containing 50CC 60 C. Theresulted mixture was stirred at 70C fbr another 30 mins and then was allowed to cool to 20CC.The resulting Grignard reagent was added to a solution of I -(4-4,4,5 ,5-tetramethyl- 1,3,2-dioxaboroian-2--yi)phenyi)ethanone (600 mg, 2.54 mmoi) in THIF (5 mL) drop-wise at 0CC, themixture was stirred at 0C to 25 ?C for 2 hours before quenched by ice-water (10 mL) slowly.The mixture was extracted with ethyl acetate (20 mL x 3), and the combined organic layers werewashed with brine (20 mL), dried over sodium sulfate, filtered and concentrated to afford thecrude product, which was purified on silica gel column chromatography (ethyl acetate / pet. ether0% 20%) to give I -(3-cyclopropylphenyi)- 1 -(4-(4,4,5,5-tetramethyi-i ,3,2-dioxahoroian-2-yi)phenyi)ethanol. ?H NMR (400MHz, CDC13) d = 7,77 (d, J=8.3 Hz, 2H), 7.43 (d, J=8.3 Hz,2H), 7.22 - 7.06 (m, 3H), 6S3 .. 6.86 (m, 1H), 1.94 (s, 3H), 1.90 - 1.81 (m, 1H), 1.34 (s, 12H),0.97 - 0.90 (rn, 2H), 0,73 - 0.61 (m, 2H) ppm. |
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