Which statement is not correct?
I. The transition state of the hydroboration reaction is a four-membered ring intermediate.
II. The intermediate with the partial positive charge on the higher substituted carbon is lower in energy.
III. The intermediate with the partial positive charge on the higher substituted carbon is higher in energy.
IV. Hydroboration is a stereoselective reaction: boron and hydrogen add simultaneously from the same side of the double bond

Question

Quizplus · Accepted Answer

Statement III is incorrect because the intermediate with the partial positive charge on the higher substituted carbon is lower in energy, which is why it is favored in the reaction. Statements I, II, and IV are all correct.

Which Statement Is Not Correct