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Pinacolborane, 97%
Description
Pinacolborane is used as a precursor of boronic esters by hydroboration or coupling reactions. It acts as a monofunctional hydroborating agent. It is used in the synthesis of unsymmetrical biaryls through aromatic C-H borylation-cross-coupling sequence. It is involved in the preparation of 4,4,5,5-tetramethyl-2-thiophen-2-yl-[1,3,2]dioxaborolane by reacting with 2-iodo-thiophene. Further, it is used to prepare vinylboronates by palladium-catalyzed coupling with alkenyl triflates and iodides.
This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
Pinacolborane is used as a precursor of boronic esters by hydroboration or coupling reactions. It acts as a monofunctional hydroborating agent. It is used in the synthesis of unsymmetrical biaryls through aromatic C-H borylation-cross-coupling sequence. It is involved in the preparation of 4,4,5,5-tetramethyl-2-thiophen-2-yl-[1,3,2]dioxaborolane by reacting with 2-iodo-thiophene. Further, it is used to prepare vinylboronates by palladium-catalyzed coupling with alkenyl triflates and iodides.
Solubility
Miscible with ether, dichloromethane, tetrahydrofuran and organic solvents.
Notes
Air sensitive and moisture sensitive. Store in a cool place. Keep the container tightly closed in a dry and well-ventilated place. Incompatible with strong oxidizing agents, strong acids, water, bases and alcohols.
Tekniske data
Tekniske data
| Density | 0.882 |
| Boiling Point | 42°C to 43°C (50 mmHg) |
| Flash Point | 5°C (41°F) |
| Refractive Index | 1.397 |
| Quantity | 25 g |
| UN Number | UN3399 |
| Beilstein | 7802871 |
| Sensitivity | Air sensitive |
| Solubility Information | Miscible with ether,dichloromethane,tetrahydrofuran and organic solvents. |
| Formula Weight | 127.98 |
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Sikkerhed og håndtering
- Pinacolborane
- Danger
- Flammable liquid Category 2
- Reproductive toxicity Category 1B
- Skin corrosion/irritation Category 2
- Substance which\, in contact with water\, emits flammable gases Category 1
- H225-Highly flammable liquid and vapour.
- H260-In contact with water releases flammable gases which may ignite spontaneously.
- H315-Causes skin irritation.
- H360FD-May damage fertility. May damage the unborn child.
- P201-Obtain special instructions before use.
- P210-Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
- P231+P232-Handle under inert gas. Protect from moisture.
- P280-Wear protective gloves/protective clothing/eye protection/face protection.
- P303+P361+P353-IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/ shower.
- P308+P313-IF exposed or concerned: Get medical advice/attention.
- MIXTURE LIST-Contains : Pinacolborane
RUO – Research Use Only
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