10. Addition Reactions

Indentify the mechanism of reaction and predict the product.

Predict the product of the following reaction.

Draw the products, including their configurations, obtained from the reaction of 1-ethylcyclohexene with the following reagents:

c. R₂BH/THF, followed by HO^–, H₂O₂, H₂O

Show how each of the following compounds can be synthesized from an alkene:

c.

Draw the product or products that will be obtained from the reaction of cis-2-butene and trans-2-butene with each of the following reagents. If a product can exist as stereoisomers, show which stereoisomers are formed.

2. BH₃/THF, followed by HO^-, H₂O₂, H₂O

What stereoisomers are obtained from hydroboration–oxidation of the following compounds? Assign an R or S configuration to each asymmetric center.

d. (Z)-3,4-dimethyl-3-hexene

Which of the following reagents can be used to convert $1-\mathrm{pentyne}$ into an $\mathrm{aldehyde}$ via hydroboration-oxidation?

Which of the following alcohols can be synthesized selectively by hydroboration-oxidation of an alkene?