Chapter 23, Problem 45PP

(a)

Interpretation Introduction

Interpretation:

With $\text{4-}$ nitrostyrene as one reagent, the other reagent required to prepare the given compound should be identified.

Concept Introduction:

Stille coupling reaction: The reaction that involves coupling of an aryl, benzyl or vinyl halide or triflate with stannane in presence of $\text{Pd}{\left({\text{PPh}}_{\text{3}}\right)}_{\text{4}}$.

Retro synthesis: It is a technique of planning an organic synthesis by the reverse approach. In this technique, the starting materials are obtained by cleaving the target molecule into logical synthons. Synthons are precursor fragments of the target compound when it is cleaved. Depending on the stability, the synthons are classified as logical and illogical synthons. Logical synthons are highly stable precursor fragments, and illogical synthons are less stable precursor fragments of the target compound.

(b)

Interpretation Introduction

Interpretation:

With $\text{4-}$ nitrostyrene as one reagent, the other reagent required to prepare the given compound should be identified.

Concept Introduction:

Stille coupling reaction: The reaction that involves coupling of an aryl, benzyl or vinyl halide or triflate with stannane in presence of $\text{Pd}{\left({\text{PPh}}_{\text{3}}\right)}_{\text{4}}$.

Retro synthesis: It is a technique of planning an organic synthesis by the reverse approach. In this technique, the starting materials are obtained by cleaving the target molecule into logical synthons. Synthons are precursor fragments of the target compound when it is cleaved. Depending on the stability, the synthons are classified as logical and illogical synthons. Logical synthons are highly stable precursor fragments, and illogical synthons are less stable precursor fragments of the target compound.

(c)

Interpretation Introduction

Interpretation:

With $\text{4-}$ nitrostyrene as one reagent, the other reagent required to prepare the given compound should be identified.

Concept Introduction:

Stille coupling reaction: The reaction that involves coupling of an aryl, benzyl or vinyl halide or triflate with stannane in presence of $\text{Pd}{\left({\text{PPh}}_{\text{3}}\right)}_{\text{4}}$.

Retro synthesis: It is a technique of planning an organic synthesis by the reverse approach. In this technique, the starting materials are obtained by cleaving the target molecule into logical synthons. Synthons are precursor fragments of the target compound when it is cleaved. Depending on the stability, the synthons are classified as logical and illogical synthons. Logical synthons are highly stable precursor fragments, and illogical synthons are less stable precursor fragments of the target compound.