Chapter 19, Problem 19.1YT

Interpretation Introduction

(a)

Interpretation:

The labelling of ${\text{δ}}^{\text{+}}\text{and}{\text{δ}}^{\text{-}}$ on $\text{C}$ atom bonded to halogen in the reactant and $\text{C}$ atom bonded to the metal atom in the product is to be determined.

Concept introduction:

The product formed in this reaction is formed by Gilman reagents, which is lithium and copper reagent compound in which alkyl halide is treated with lithium metal. This are useful reagents because they react with organic halides.

Interpretation Introduction

(b)

Interpretation:

The labelling of ${\text{δ}}^{\text{+}}\text{and}{\text{δ}}^{\text{-}}$ on $\text{C}$ atom bonded to halogen in the reactant and $\text{C}$ atom bonded to the metal atom in the product is to be determined.

Concept introduction:

Grignard reagents are prepared by treating organic halide (organobromide) with magnesium metal. To stabilize this Grignard reagent, cyclic or acyclic ethers are required. Grignard reagent is present as a complex with magnesium atom.