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CAS RN: 25015-63-8 | Product Number: T2572
4,4,5,5-Tetramethyl-1,3,2-dioxaborolane
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Purity: >97.0%(GC)(T)
Synonyms:
- Pinacol Borane
- HBpin
Product Documents:
| Size | Unit Price | Hyderabad | Japan* | Quantity |
|---|---|---|---|---|
| 5G |
₹2,700.00
|
2 | 29 |
|
| 25G |
₹9,100.00
|
14 | 6 |
|
*Upon orders receipt, Hyderabad stocks will be dispatched on the same day.
*Items available in Japan warehouse will be dispatched in 10-12 working days.
*INR price is exclusive of domestic taxes applicable.
*TCI frequently reviews storage conditions to optimize them. Please note that the latest information on the storage temperature for the products is described on our website.
| Product Number | T2572 |
Purity / Analysis Method 
|
>97.0%(GC)(T) |
| Molecular Formula / Molecular Weight | C__6H__1__3BO__2 = 127.98 |
| Physical State (20 deg.C) | Liquid |
| Storage Temperature
|
Refrigerated (0-10°C) |
| Store Under Inert Gas | Store under inert gas |
| Condition to Avoid | Moisture Sensitive,Heat Sensitive |
| Packaging and Container
|
25G-DualSeal Bottle (View image) |
| CAS RN | 25015-63-8 |
| Reaxys Registry Number | 7802871 |
| PubChem Substance ID | 87560970 |
| MDL Number | MFCD00674030 |
Specifications
| Appearance | Colorless to Almost colorless clear liquid |
| Purity(GC) | min. 97.0 % |
| Purity(Neutralization titration) | min. 97.0 % |
| NMR | confirm to structure |
Properties (reference)
| Boiling Point | 43 °C/50 mmHg |
| Flash point | 5 °C |
| Specific Gravity (20/20) | 0.89 |
| Refractive Index | 1.40 |
GHS
| Pictogram |
|
| Signal Word | Danger |
| Hazard Statements | H225 : Highly flammable liquid and vapor. H261 : In contact with water releases flammable gas. |
| Precautionary Statements | P501 : Dispose of contents/ container to an approved waste disposal plant. P223 : Do not allow contact with water. P240 : Ground/bond container and receiving equipment. P231 + P232 : Handle under inert gas. Protect from moisture. P210 : Keep away from heat/sparks/open flames/hot surfaces. No smoking. P233 : Keep container tightly closed. P243 : Take precautionary measures against static discharge. P241 : Use explosion-proof electrical/ ventilating/ lighting/ equipment. P242 : Use only non-sparking tools. P280 : Wear protective gloves/ eye protection/ face protection. P370 + P378 : In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish. P335 + P334 : Brush off loose particles from skin. Immerse in cool water/ wrap in wet bandages. P303 + P361 + P353 : IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower. P402 + P404 : Store in a dry place. Store in a closed container. P403 + P235 : Store in a well-ventilated place. Keep cool. |
Related Laws:
Transport Information:
| UN Number | UN3399 |
| Class | 4.3 / 3 |
| Packing Group | II |
Application
Borylation of Triflate with Pinacolborane
Typical procedure: To a degassed solution of L-tyrosine triflate derivative (500 mg, 1.17 mmol) and NMM (0.129 mL, 1.17 mmol) in dioxane (5 mL) is added PdCl2(dppf).CH2Cl2 (4.8 mg, 0.0059 mmol) and pinacolborane (0.255 mL, 1.76 mmol) at room temperature. The reaction mixture is then stirred for 24 h at 80 ℃. After cooling to room temperature, the mixture is concentrated and directly purified by silica gel column chromatography (heptane : ethyl acetate = 3 : 1) to give the borylation product as a colorless viscous oil (445 mg, 94% yield).
References
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