Draw the structure of the expected organic product(s) formed in the following reactions including correct sine echemistry. If the product is racemic write racemic or draw both isomers. Assume all reagents listed are present in excess unless otherwise noted. If no reaction occurs, state "No Reaction".
Draw the structure of the expected organic product(s) formed in the following reactions including correct sine echemistry. If the product is racemic write racemic or draw both isomers. Assume all reagents listed are present in excess unless otherwise noted. If no reaction occurs, state "No Reaction".
As we see that the reactant is diene,so this reaction is the conjugate addition reaction of halogen.But the addition of halogen occurs in presence of different condition. At low temperatures, the reaction is irreversible and the lowest-energy transition state will determine the major product .so at the lower temperature given product is kinetically control product.that means 1,2 addition takes place.
At higher temperatures, the reaction is reversible and the product tribution will favor the more stable product.so at the higher temperature, given product is thermodynamically control product that means 1,4 addition occurs.
As in the problem cold conditions is given i.e lower temperature,so 1,2 addition product is major product.
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