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| | p-Terphenyl, 4-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)- Basic information |
| Product Name: | p-Terphenyl, 4-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)- | | Synonyms: | p-Terphenyl, 4-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-;[1,1':4',1''-Terphenyl]-4-boronic acid pinacol ester;4,4,5,5-Tetramethyl-2-[1,1':4',1''-terphenyl]-4-yl-1,3,2-dioxaborolane;2-([1,1':4',1''-Terphenyl]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane;2-([1,1':4',1''-Terphenyl]-4-yl);2-([1,1':4',1"-terphenyl]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxabolorane;1,3,2-Dioxaborolane, 4,4,5,5-tetramethyl-2-[1,1':4',1''-terphenyl]-4-yl-;(1,1':4',1''-Terphenyl)-4-ylboronic Acid Pinacol Ester | | CAS: | 1080632-76-3 | | MF: | C24H25BO2 | | MW: | 356.27 | | EINECS: | | | Product Categories: | OLED | | Mol File: | 1080632-76-3.mol |  |
| | p-Terphenyl, 4-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)- Chemical Properties |
| Melting point | 146 °C | | Boiling point | 508.5±29.0 °C(Predicted) | | density | 1.10 | | storage temp. | under inert gas (nitrogen or Argon) at 2-8°C | | Appearance | White to off-white Solid |
| | p-Terphenyl, 4-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)- Usage And Synthesis |
| Synthesis | General procedure for the synthesis of [1,1':4',1''-terphenyl]-4-boronic acid pinacol ester from 4-bromo-p-terphenyl and bis(pinacolato)diboronic acid: 4-bromo-p-terphenyl (120 g, 388 mmol) was dissolved in 1.2 L of dimethylformamide (DMF) under nitrogen protection. Subsequently, bis(pinacolato)diboron (118 g, 466 mmol), 1,1'-bis(diphenylphosphino)ferric-palladium(II) dichloride (3.17 g, 3.88 mmol) and potassium acetate (114 g, 1,164 mmol) were added. The reaction mixture was heated to reflux at 150 °C for 4 hours. After completion of the reaction, the reaction solution was poured into water and the precipitate was collected by filtration. The resulting solid was dried in a vacuum oven. Finally, the crude product was separated and purified by fast column chromatography to afford [1,1':4',1''-terphenyl]-4-boronic acid pinacol ester (124 g, 90% yield). | | References | [1] Patent: KR2015/117173, 2015, A. Location in patent: Paragraph 0284-0286
[2] Patent: US2017/331067, 2017, A1. Location in patent: Paragraph 0248-0251
[3] Patent: US2017/40550, 2017, A1. Location in patent: Paragraph 0083 |
| | p-Terphenyl, 4-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)- Preparation Products And Raw materials |
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