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What stereoisomers are obtained from hydroboration–oxidation of cyclohexene?

Answer 1

Madison Anderson

No stereoisomers are formed in the hydroboration–oxidation of cyclohexene.

The hydroboration of an alkene gives an organoborane, which is then oxidized to give an alcohol .

If the alkene is cyclohexene, the product is cyclohexanol.

Cyclohexanol has no chiral centres, so the hydroboration-oxidation reaction with cyclohexene gives no stereoisomers.

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Answer 2

Elias Aguila

The hydroboration-oxidation of cyclohexene yields a single stereoisomer. This is because the hydroboration reaction proceeds with syn-addition, meaning that the boron and hydrogen atoms add to the same side of the double bond. As a result, there is no change in the stereochemistry of the carbon atoms involved in the reaction, and only one stereoisomer is obtained.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.