Chapter 5.6, Problem 25ATS

Interpretation Introduction

Interpretation:

The possible stereoisomers for the given compound has to be drawn and their chirality should be identified. The two stereoisomers which were isolated from the plant has to be deduced.

Concept Introduction:

The stereoisomerism is the arrangement of atoms in molecules whose connectivity remains the same but their arrangement in different in each isomer.

The two molecules are described as stereoisomers if they are made of the same atoms connected in the same sequence, but the atoms positions are differently arranged in space.

The carbon atom bonded to four unlike groups is called an asymmetric carbon atom and is also known as achiral carbon.

Chiral centre: A chiral center is defined as the tetrahedral carbon atom in an organic molecule that is connected to four non-identical groups/substituents. It is sometimes known as a stereo genic center.

$\begin{array}{l}Totalnumberofstereoisomers=2^n\\ "n"isthenumberofchiralcarbons\end{array}$

Enantiomers: These are stereoisomers that are not superimposable and have mirror images of each other and the configurations at all stereo genic centers are exactly opposite.

A meso compound is a molecule with multiple stereocenters that is superimposable on its mirror image.