Chapter 21, Problem 21.62P

Devise a synthesis of each alkene using a Wittig reaction to form the double bond. You may use benzene and organic alcohols having four or fewer carbons as starting materials and any required reagents.

a. ${\text{CH}}_{\text{3}}{\text{CH}}_{\text{2}}{\text{CH}}_{\text{2}}\text{CH}={\text{CHCH}}_{\text{3}}$ b. ${\text{C}}_6{\text{H}}_5\text{CH}={\text{CHCH}}_2{\text{CH}}_2{\text{CH}}_{\text{3}}$ c. ${{\text{(CH}}_{\text{3}}\text{)}}_2\text{C}={\text{CHCH(CH}}_{\text{3}}{)}_2$