5. The addition of 2,4-dinitrobenzenesulfenyl chloride to cis- and to trans-2-phenyl-2-butene gives the products shown in Equations 1 and 2, respectively. AT CHE CHE CHSCH ArSCI CH3-CPh (1) PH /SAI cy CH3 Ph F E SAr .-CH CHE H ArSCI CHE SAT / + 2) (2) Ph CHE Ph CH Ph G H (a) What are the stereochemical relationships between the products formed? (b) Provide mechanisms for the two reactions that account for the formation of the products shown. Clearly indicate why your mechanisms account for the products formed in each reaction to the exclusion to others