Question

One component of jojoba oil is a wax formed from eicosenoic acid $\left[{\mathrm{CH}}_3{\left({\mathrm{CH}}_2\right)}_7\mathrm{CH}=\mathrm{CH}{\left({\mathrm{CH}}_2\right)}_9{\mathrm{CO}}_{2}H\right]$and${\mathbf{CH}}_{\mathbf{3}}{\left({\mathrm{CH}}_2\right)}_{\mathbf{7}}\mathbf{CH}\mathbf{=}\mathbf{CH}{\left({\mathrm{CH}}_2\right)}_{\mathbf{8}}\mathbf{OH}$ . Draw the structure of the wax, including the cis geometry of both carbon-carbon double bonds.

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Answer

Step-by-step solution

Jojoba oil

Jojoba oil is an oil that is acquired from the jojoba shrub. It is a stable oil because of its chemical composition. It comprises of several properties, and one of its main being its anti-inflamatory property.

Waxes

Waxes come under the category of hydrolyzable lipids. They are esters (RCOOR') generated by combining alcohol (R'OH) comprising high molecular weight with a fatty acid (RCOOH). Their hydrophobic nature is due to the elongated hydrocarbon chain.

Structure of the wax, including the cis geometry of both carbon-carbon double bonds

Fatty acids combine with high molecular weight alcohol to create waxes. The structure of eicosenoic acid can be given as:

Structure of eicosenoic acid

The structure of the alcohol can be given as:

Structure of octadec-9-en-1-ol

The reaction of eicosenoic acid with high molecular weight alcohol generates wax. The structure of wax comprising the representation of cis double bonds can be given as:

The reaction of eicosenoic acid with alcohol to generate wax