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What products are formed if you react benzil with sodium borohydride and with water if hydrobenzoin is one of the products?
Accepted Answer
The reaction of benzil with sodium borohydride (NaBH4) in the presence of water results in the reduction of the carbonyl groups to hydroxyl groups. This forms a mixture of diastereomers, hydrobenzoin, which is the major product, and iso-hydrobenzoin, which is the minor product. The reaction proceeds through a hydride transfer mechanism, where NaBH4 donates a hydride ion (H-) to the carbonyl group, leading to the formation of an alkoxide intermediate. This intermediate is then protonated by water to yield the final product.
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