Chapter 5, Problem 60P

Interpretation Introduction

Interpretation:

It should be drawn the structure of the compound with molecular formula $C_8{H}_{14}$ which reacts with one equivalent of hydrogen over $\text{Pd/C}$ to form a meso compound.

Concept introduction:

• Molecular formula is a chemical formula that shows the total number of kinds of atoms in a molecule.  Some types of organic compounds and their general formulas listed below,

  $\begin{array}{cc}Organiccompound& Genaralformula\\ Alkane& C_n{H}_{2n+2}\\ Alkene& C_n{H}_{2n}\\ Alkyne& C_n{H}_{2n-2}\end{array}$

• In the formula of organic compound two hydrogen atom should be subtracted from its general formula if the compound contains $\Pi$ bond or ring.
• Degree of unsaturation of an organic compound can be determined by using the equation,

$\begin{array}{c}\frac{\left(2n+2-X\right)}{2}\\ n=numberofcarboninthemolecule\\ X=numberofhydrogenatominthemolecule\end{array}$

• Catalytic hydrogenation is the process of addition of hydrogen to a compound in the presence of a catalyst.  The most common metal catalyst is palladium, which is used as a powder absorbed on charcoal to maximize its surface area.  The metal catalyst is required to weaken the very strong $H-H$ bond.
• A meso compound is a molecule with multiple stereocentres that is super imposable on its mirror image.