• Bulletin of the Korean Chemical Society
• /
• 제24권3호
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• pp.295-298
• /
• 2003

α,β-Unsaturated aldehydes and ketones are regioselectively reduced to the corresponding allylic alcohols with /Dowex1-x8 system in THF at room temperature. This system is also efficient for the conversion of α-diketones and acyloins to the vicinal diols in refluxing THF.

• Bulletin of the Korean Chemical Society
• /
• 제28권5호
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• pp.871-872
• /
• 2007

• Bulletin of the Korean Chemical Society
• /
• 제24권4호
• /
• pp.453-459
• /
• 2003

(Pyridine)(tetrahydroborato)zinc complex, $[Zn(BH_4)_2(py)]$, as a stable white solid, was prepared quantitatively by complexation of an equimolar amount of zinc tetrahydroborate and pyridine at room temperature. This reagent can easily reduce variety of carbonyl compounds such as aldehydes, ketones, acyloins, α-diketones and a, β-unsaturated carbonyl compounds to their corresponding alcohols in good to excellent yields. Reduction reactions were performed in ether or THF at room temperature or under reflux conditions. In addition, the chemoselective reduction of aldehydes over ketones was accomplished successfully with this reducing agent.