Factory Price Sodium Triacetoxyborohydride CAS 56553-60-7
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- 1
- Place Of Origin
- 加拿大
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- 15 Days
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Product Description
Sodium Triacetoxyborohydride CAS 56553-60-7
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Product Information:
| Product name: | Sodium Triacetoxyborohydride |
| CAS: | 56553-60-7 |
| Molecular formula: | C6H10BNaO6 |
| Molecular weight: | 211.94100 |
| Precise quality: | 212.04700 |
| PSA: | 78.90000 |
| LOGP: | -0.60710 |
| Appearance: | White crystalline powder |
| Melting point: | 116-120 °C (dec.)(lit.) |
| Water solution: | reacts |
| Stability: | Reacts violently with water. |
| Storage condition: | Flammables + water-Freezer (-20ºC)e area |
Product Introduce:
Sodium triacetoxyborohydride, also known as sodium triacetoxyhydroborate, commonly abbreviated STAB, is a chemical compound with the formula Na(CH3COO)3BH. Like other borohydrides, it is used as a reducing agent in organic synthesis. This colourless salt is prepared by protonolysis with acetic acid:
NaBH4 + 3 HO2CCH3 → NaBH(O2CCH3)3 + 3 H2
Owing to the steric and electronic effects of the acetoxy groups, sodium triacetoxyborohydride is a milder reducing agent or even sodium cyanoborohydride. Furthermore, NaBH(OAc)3 avoids the toxic side-products generated by sodium cyanoborohydride. Sodium triacetoxyborohydride is especially suitable for reductive aminations of aldehydes and ketones.
However, unlike sodium cyanoborohydride, the triacetoxyborohydride is water-sensitive, and water cannot be used as a solvent with this reagent, nor is it compatible with . It reacts only slowly with ethanol and can be used with these.
NaBH(OAc)3 may also be used for reductive alkylation of secondary amines with aldehyde-bisulfite adducts.
Product Used:
Sodium triacetoxyborohydride is a new catalyst developed in recent years for reductive amination. Because of its excellent universality and selectivity, mild reaction conditions, good catalytic reduction performance, easy separation and purification, no pollution to the environment, it has become the preferred catalyst for reductive amination.
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