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Determining the Limiting Reagent in Sodium Borohydride Reductions

"Calculating the limiting reagent in a sodium borohydride reduction requires comparing the stoichiometric ratio of hydride ions supplied by $\text{NaBH}_4$ to the moles of carbonyl groups in the substrate, factoring in that one mole of $\text{NaBH}_4$ can theoretically deliver four hydride equivalents to reduce up to four equivalents of a ketone or aldehyde. Sodium borohydride ($\text{NaBH}_4$) reduction is a cornerstone operation in synthetic organic chemistry laboratories and industrial manufacturing facilities alike. Used primarily to convert aldehydes and ketones into primary and secondary alcohols, this mild and versatile reducing agent o..."

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