Chapter 23.2, Problem 5CC

Interpretation Introduction

Interpretation:

The structures of compounds A–C in the given reaction scheme should be identified.

Concept Introduction:

Reaction between Grignard reagent and water: The Grignard reagents are generally rapidly reactive with $H_{2}O$ and results to form hydrocarbon since Grignard reagents are very strong bases.

Preparation of organolithium: They are prepared by reaction of organohalide in presence of two equivalents of $Li$.

    $\text{R-X}\stackrel{\text{Li}\left(\text{2eq}\right)}{\to }\text{R-Li + LiX}$

Preparation of Grignard reagents: They are prepared by reaction of organohalide in presence $Mg$ in ether solvent.

    $\text{R-X}\underset{E{t}_{2}O}{\overset{Mg}{\to }}\text{R-Mg-X}$

The Grignard reaction:

Alkyl, vinyl, or aryl-magnesium halides ($\text{RMgX}$) is called as Grignard reagent.

Grignard reagent is reaction with carbonyl compound such as aldehyde or ketone, produces corresponding alcohol is the product and it is the one of the carbon – carbon bond forming reaction.