Sodium Triacetoxyborohydride | |
Sodium triacetoxyborohydride, also known as sodium triacetoxyhydroborate, commonly abbreviated STAB, is a white hygroscopic solid that emits hydrogen gas when hydrolysed in water, which is flammable. It is a milder reducing agent than sodium borohydride or even sodium cyanoborohydride. Even sodium cyanoborohydride is a milder reducing agent than sodium borohydride, and is particularly suitable for the reductive amination of aldehydes and ketones. It can reduce aldehydes but not most ketones. Sodium triacetoxyborohydride is a mild reagent that exhibits remarkable selectivity as a reducing agent. It reduces aldehydes but not ketones; however, beta-hydroxyketones can be reduced selectively to give 1,3-trans diols.The steric and the electron-withdrawing effects of the three acetoxy groups stabilize the boron-hydrogen bond and are responsible for its mild reducing properties. It can also be used in the reductive alkylation of secondary amines in aldehyde-bisulfite adducts. Brand: Soarwin CAS No.: 56553-60-7 EC Number: 435-580-8 Molecular Formula: C6H10BNaO6 Density: 1.36[at 20°C] Melting point: 116-120°C (dec.) (lit.) Boiling point: 111.1°C(Predicted) | |
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