4,4,5,5-Tetramethyl-2-(4-(naphthalen-2-yl)phenyl)-1,3,2-dioxaborolane
CAS: 1092390-02-7
Category: Organic Intermediates
| Purity | Research Grade ≥97%; High-Purity Grade ≥98%; HPLC Grade ≥99% |
| Molecular Formula | C22H23BO2 |
| Molecular Weight | 330.23 |
| Appearance | White to off-white crystalline powder |
| Packaging | 1 g, 5 g, 10 g, 25 g, 100 g amber glass bottle or aluminum foil bag |
| Testing Indicators | Appearance — Visual inspection; Identification — FTIR spectroscopy and ¹H NMR, ¹³C NMR; Boron identification — ¹¹B NMR; Molecular weight — LC-MS or HRMS; Purity — HPLC (UV); Melting point — Capillary melting point method; Water content — Karl Fischer titration (GB/T 6283); Residual solvents — GC (ICH Q3C); Elemental analysis — CHN analyzer. |
| Storage Notes | Store in a tightly sealed container in a cool, dry, well-ventilated place. Protect from moisture, direct sunlight, and prolonged air exposure. For long-term storage, keep under nitrogen or argon at 2–8°C. Avoid exposure to humid environments. |
| Lead Time | 10 days |
Used as a pinacol boronate ester intermediate for Suzuki-Miyaura cross-coupling reactions. Widely employed in the synthesis of pharmaceutical intermediates, OLED host and emitter materials, liquid crystal compounds, conjugated polymers, organic semiconductors, and other advanced functional materials. Serves as an important aromatic building block in medicinal chemistry and materials science.