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CAS No. : | 5122-99-6 | MDL No. : | MFCD01319014 |
Formula : | C6H6BIO2 | Boiling Point : | - |
Linear Structure Formula : | IC6H4B(OH)2 | InChI Key : | PELJYVULHLKXFF-UHFFFAOYSA-N |
M.W : | 247.83 | Pubchem ID : | 151254 |
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 |
---|---|---|
86% | With magnesium sulfate; In dichloromethane; at 20℃;Product distribution / selectivity; | Method 3; 4-((4-(5,5-dimethyl-l,3,2-dioxaborinan-2-yl)phenyl)ethynyl)benzaldehyde; A. 2-(4-iodophenyl)-5,5-dimethyl-l ,3,2-dioxaborinane; 2-(4-iodophenyl)-5,5-dimethyl-l,3,2-dioxaborinane was prepared following the method described in Method 2 step A to yield 5.4 g (86% yield) of the title compound as an off-white solid.LC-MS: [M+H]+ 316.12 Mass: calculated for C11H14BIO2, 315.95 |
In diethyl ether; at 20℃;Inert atmosphere; Molecular sieve; | General procedure: To a Et2O solution of anorganoboronic acid (1.00 equiv) and 2,2-dimethylpropane-1,3-diol (neopentyl glycol)(1.02 equiv), 4A molecular sieves was added and the reaction mixture was stirred atroom temperature. After the reaction finished, the reaction mixture was filtered andconcentrated in vacuo. The residue was subjected to flash column chromatography(eluent: petroleum ether/ethyl acetate) or recrystallization to obtain the desired product |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
4.71 g | With pyridine; copper diacetate; In N,N-dimethyl acetamide; at 20℃; | A mixture of (4-iodophenyl)boronic acid (5 g), <strong>[5932-27-4]ethyl 1H-pyrazole-3-carboxylate</strong> (3.08 g), copper(II) acetate (4 g), pyridine (2.9 g) and DMA (50 ml) was stirred overnight at room temperature. The mixture was extracted with ethyl acetate and saturated aqueous ammonium chloride solution. The obtained organic layer was washed with saturated brine, dried over magnesium sulfate, and concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (ethyl acetate/hexane) to give the title compound (4.71 g). 1H NMR (300 MHz, DMSO-d6) delta 1.32 (3H, t, J = 7.1 Hz), 4.33 (2H, q, J = 7.1 Hz), 7.02 (1H, d, J = 2.6 Hz), 7.68-7.77 (2H, m), 7.85-7.96 (2H, m), 8.65 (1H, d, J = 2.6 Hz). |
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