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China Medicina

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Medicina

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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