Which of the following is the major organic product formed when 1-hexyne undergoes hydroboration–oxidation (using ${\mathrm{BH}}_3$ followed by $H{2}_O/\mathrm{OH}/H{2}_O{2}_{}$)?

What is the major product of the reaction of 2-methyl-2-butene with each of the following reagents?

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

Predict the products you would get when the following alkenes undergo (ii) oxymercuration–reduction [1. Hg(OAc)₂ , H₂O 2. NaBH₄ ].

(b)

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?

Which of the following best describes the first step in the hydroboration mechanism when an alkene reacts with $B_{2}H6$ (diborane) in the presence of tetrahydrofuran (THF)?

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