Nucleophilic substitution reaction of chloride an optically pure aqueous NaOH sample gives a racemic mixture of tertiary alcohol. The reaction follows an SN2 mechanism. The presence of which functional group(s) in a compound can cause the existence of "E and Z" forms? Both a C-C double bond and a C-N double bond. Which of the following would exhibit optical isomerism? 4-isopropylheptane. The reaction of 2,2-dimethyl-1-propanol, also known by its common name neopentyl alcohol, with HBr gives 2-bromo-2-methylbutane as the major product. Giving the structures of the reactant and the product, explain the mechanistic explanation for the product of the reaction. The reaction of 1,3-butadiene with diethyl acetylenedicarboxylate (C2H5OOC=C=COC2H5) gives a Diels-Alder adduct in 98% yield. Give the structure of the product. The E & Z isomers of cinnamic acid (CH3CH=CHCOOH) each give a different product on reaction with 1,3-butadiene. Naming the reaction involved, write the equation for each reaction including the structures of the products formed. Write structural formulas for all the (a) Conjugated dienes; (b) Isolated dienes; and (c) Cumulated dienes that give 2,4-dimethylpentane on catalytic hydrogenation.