2-(4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)benzo[d]oxazole synthesis
- Product Name:2-(4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)benzo[d]oxazole
- CAS Number:439090-73-0
- Molecular formula:C19H20BNO3
- Molecular Weight:321.18
![2-(4-bromophenyl)benzo[d]oxazole](/CAS/GIF/3164-13-4.gif)
3164-13-4
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73183-34-3
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Yield:439090-73-0 99%
Reaction Conditions:
with (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride;potassium acetate in toluene; for 4 h;Reflux;Inert atmosphere;
Steps:
7.19 Step 19 (Synthesis of 2-(benzo[d]oxazol-2-yl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane)
2-(4-Bromophenyl)benzo[d]azole (10 parts), bis(pinacol)diboron (10.8 parts), potassium acetate (6.9 parts) and [1,1'-double ( Diphenylphosphino)ferrocene]palladium(II) chloride dichloride adduct (1.0 part) was mixed in toluene (500 parts), and stirred at reflux temperature for 4 hours under a nitrogen atmosphere.After the obtained reaction liquid was cooled to room temperature, 20 parts of tannin was added, and the mixture was stirred for 5 minutes.Then, by separating the solid fraction by filtration, and removing the solvent under reduced pressure,2-(Benzo[d]oxazol-2-yl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane pentane (11.4 parts, yield 99%).
References:
TW2018/31491,2018,A Location in patent:Paragraph 0090
![1 -phenyl-2-(4-(4,4,5,5-tetramethyl- 1 ,3,2-dioxaborolan-2-yl)phenyl)-1H-benzo[d]imidazole](/CAS/20180527/GIF/1146340-38-6.gif)
1146340-38-6
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73183-34-3
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439090-73-0
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3164-13-4
152 suppliers
$16.00/250mg
73183-34-3
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$6.00/5g
357437-74-2
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439090-73-0
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586-75-4
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