give the structures for the products of these reactions and indicate stereochemistry if necesaary. write no reaction if no reaction is expected to occur and explain why nothing would occur. if more than one product is formed, indicate the major product or if they are in equal parts

1. Give the structure(s) of the product(s) for each of the reactions below, and be sure to indicate any relative stereochemistry (you can assume that each of the Diels-Alder reactions will proceed with endo selectivity). If no reaction is expected to occur under the indicated conditions, then write "no reaction" or NR, and explain why you would expect nothing to occur. If more than one product is formed, please indieate which one will be the major product or if they will be formed in equal amounts. In all cases, equimolar amounts of both components/reagents are present uniess indicated otherwise. (xs) heat