Chapter 4, Problem 43PP

(a)

Interpretation Introduction

Interpretation:

Ring flip conformer needed to be drawn for the given chair conformer.

Concept introduction:

Chair conformer: chair conformer is a stable conformer for cyclohexane compound. in this chair conformer two positions are important for substitutions one is equatorial and other one axial position. Axial positions are parallel to the axis of ring while equatorial positions are perpendicular to the axis of the ring.

Example:

After ring flip of the conformer, axial position becomes equatorial and equatorial position becomes axial.

(b)

Interpretation Introduction

Interpretation:

Ring flip conformer needed to be drawn for the given chair conformer.

Concept introduction:

Chair conformer: chair conformer is a stable conformer for cyclohexane compound. in this chair conformer two positions are important for substitutions one is equatorial and other one axial position. Axial positions are parallel to the axis of ring while equatorial positions are perpendicular to the axis of the ring.

Example:

After ring flip of the conformer, axial position becomes equatorial and equatorial position becomes axial.

(c)

Interpretation Introduction

Interpretation:

Ring flip conformer needed to be drawn for the given chair conformer.

Concept introduction:

Chair conformer: chair conformer is a stable conformer for cyclohexane compound. in this chair conformer two positions are important for substitutions one is equatorial and other one axial position. Axial positions are parallel to the axis of ring while equatorial positions are perpendicular to the axis of the ring.

Example:

After ring flip of the conformer, axial position becomes equatorial and equatorial position becomes axial.