The most predominant product that gives an overall yield of 90 % for the given reaction has to be drawn. Concept Introduction: Carbonyl compound when treated with LDA (Lithium Diisopropylamide) undergoes deprotonation at the α -carbon to form enolate. The enolate formed is resonance stabilized as the negative charge will be spread over other atoms too. The resonance stabilized intermediate undergoes reaction with other molecule of carbonyl (same or different) to form the respective products. If LDA is used as a base the less substituted α carbon is deprotonated due to steric hindrance. Deprotonation of α carbon to form enolate Nucleophilic attack of enolate S N 2 reaction with alkyl halide

Question

5) There are no lone pairs shown in the structure below. Please add in all lone pairs and then give the hybridization scheme for the compound. (8) 10,11 7) 1.2.3 H 4 | 14 8) COC 12 13 H 16 15 H7 9) - 5.6 C 8 H 10) H 1). 2) 3)_ 11) 12) 13) 4)_ 14) 5) 15) 16) 6)

Answer 1

Question

Chapter 19, Problem 19.80P

Interpretation Introduction

Interpretation:

The most predominant product that gives an overall yield of 90% for the given reaction has to be drawn.

Concept Introduction:

Carbonyl compound when treated with LDA (Lithium Diisopropylamide) undergoes deprotonation at the α-carbon to form enolate. The enolate formed is resonance stabilized as the negative charge will be spread over other atoms too. The resonance stabilized intermediate undergoes reaction with other molecule of carbonyl (same or different) to form the respective products. If LDA is used as a base the less substituted α carbon is deprotonated due to steric hindrance.

Deprotonation of α carbon to form enolate

Nucleophilic attack of enolate

S_N2 reaction with alkyl halide

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