Chapter 21, Problem 21.14P

Interpretation Introduction

(a)

Interpretation: The products of given reaction (including all stereoisomers) are to be drawn.

Concept introduction: The hydride reduction or the nucleophilic addition of carbanions to carbonyl compounds (aldehyde/ketone), both involve two-step mechanism that is nucleophilic attack of hydride ion or carbanion followed by protonation.

Interpretation Introduction

(b)

Interpretation: The products of given reaction (including all stereoisomers) are to be drawn.

Concept introduction: The hydride reduction or the nucleophilic addition of carbanions to carbonyl compounds (aldehyde/ketone), both involve two-step mechanism that is nucleophilic attack of hydride ion or carbanion followed by protonation.