Chapter 10, Problem 25P

Compound A ${\text{(C}}_{\text{6}}{\text{H}}_{\text{14}}\text{)}$ gives three different monochlorides on photochemical chlorination. One of these monochlorides is inert to E2 elimination. The other two yield the same alkene B ${\text{(C}}_{\text{6}}{\text{H}}_{\text{12}}\text{)}$ as the only product on being heated with potassium

$tert\text{-butoxide}$ in $tert\text{-butyl alcohol}$. Identify compound A, the three monochlorides, and alkene B.