Which of the following reagents would be the best choice to carry out the reaction shown below?

Question

Quizplus · Accepted Answer

The reaction involves the conversion of a ketone to an aldehyde, which can be achieved by using a reducing agent such as lithium tri-sec-butylborohydride (LSB) or copper(I) bis[(2-diphenylphosphino)phenyl] ether (CuDPEPhos). Option B represents LSB, which is a commonly used mild reducing agent for the reduction of ketones to alcohols, and it would be the best choice for this reaction. Option A (NaH) is a strong base and cannot be used for this reaction. Option C (MgCl) is a Lewis acid and not a reducing agent. Option D (LiCH2CH2CH2CH2) is a reducing agent but it is not selective for ketones and would reduce the aldehyde product to an alcohol. Option E (MgBr) is a Grignard reagent and does not have reducing properties like LSB.

Which of the Following Reagents Would Be the Best Choice