What alkene is needed to synthesize each amino acid by an enantioselective hydrogenation reaction using and :

(a) Alanine;

(b) Leucine;

(c) Glutamine?

The hydrocarbon that contains a carbon-carbon double bond is said to be alkene.Alkene is the synonym of olefin. It is nonpolar and depends on molecular mass. In comparison to an alkane, it has a strong smell.

Rhodium catalysts are used to produce a harmless substance/compound. Hydrogenation is done to reduce bonds.

Achiral alkenes are needed to synthesize each amino acid by enantioselective hydrogenation reaction using ${\mathrm{H}}_2$and ${\mathrm{Rh}}^{*}$

(a) Achiral alkene is treated with ${\mathrm{H}}_2$and ${\mathrm{Rh}}^{*}$catalysts, which on hydrolysis forms alanine.

Formation of alanine

(b) Achiral alkene is treated with ${\mathrm{H}}_2$and ${\mathrm{Rh}}^{*}$catalysts, which on hydrolysis form leucine.

Formation of leucine

(c) Achiral alkene is treated with ${\mathrm{H}}_2$and $\mathrm{Rh}*$catalysts, which on hydrolysis form glutamine.

Formation of glutamine