Mechanism Questions: a. For each of the reactions below propose a rational mechanism. For some of the reactions you need to provide a missing intermediate or product. The best way to solve for these missing components is to first derive a mechanism - that will show you the missing reaction component. note: some mechanisms may be one step, while others may be several steps, and not all steps are pericyclic reactions. caution: Be sure not to include any reactants/reagents that do not appear in the reaction scheme; if they are not in the scheme, they are not in the flask. This also means you cannot use imaginary species like HA" for acid, or "B" for base. b. Where indicated, classify the type of pericyclic reaction reactions, including the sub-class specific number systems Le. [4+2) cycloaddition, 8x electrocyclization, or [1.7)-sigmatropic rearrangement. Mechanism 1: provide the missing intermediate in the scheme below and add all curved arrows needed to explain the formation of the product. Classify each of the two steps of the overall reaction as explained in part b above. a intermediate rxn class: nxn class: Mechanism 2: add arrows to the scheme of the trans-isomer below. Me. Me Me Me H no reaction A trans-isomer product cis-isomer Provide an explanation as to why the cis-isomer fails to undergo the same reaction as the trans-isomer. Use an illustration to help support your