What type of reaction is shown for the synthesis of the alkenes? (4-methyl-2-pentanol +SOCl2→ 4-methyl-2-chloropentane and then add CH3CH2ONa and CH3CH2OH and heat → Alkenes) Does is proceed by an E2 mechanism because it is a secondary alcohol? (Yes, because alkoxide is a strong base. - GS).  Are there any hydride or alkyl shifts in this case?  (No, because there are no carbocations involved. - GS).