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What is the chemical equation when benzophenone is reduced to diphenylmethanol with NaBH4, and why is...

What is the chemical equation when benzophenone is reduced to diphenylmethanol with NaBH4, and why is HCl added in the end?

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Answer #1

NaBH4 given hydride ion which is strong necleophile. Relatively electropositive carbon in carbonyl group is attached by this hydride ion can open one carbon oxygen bond due to avoid pentavalency.

Once carbon oxygen -carbon bond is broken oxygen bear negative charge which is neutralized by proton that is the reason we need HCl in the end of the reaction.

Lets show the reaction by using structure and then write chemical equation for this.


C13H10O + NaBH4 + HCl -- > C13H11O + NaCl +BH3

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