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- Give a clear explanation of how the followingcarbocation is stabilized:Provide a reasonable arrow-pushing mechanism for Reaction 5b, and explain the the stereochemical outcome. 5d below1 Complete the following reaction scheme. Give all product(s) and indicate major or minor and any relevant stereochemistry.
- A. For each reaction1) Provide the missing reagents/conditions or major organic products as appropriate2) Assign each reaction as Oxidation or Reduction unless otherwise directed3) Pay attention to stereochemistry including racemic mixtures unless specifiedWhat type of sigmatropic rearrangement is illustrated in each reaction?Under basic conditions, the following substrates can undergo a [4+2] cycloaddition with regio- anddiastereo- control. Rationalize mechanistically how the reaction occurs as well as the regio- and stereochemical outcome with each base.
- Draw the major organic product generated in the reaction below. Pay particular attention to regio- and stereochemical detail.Draw the main organic products of the reaction. Indicate the stereochemistry, including all hydrogen atoms, at each stereocenter. Omit byproducts such as salts or methanol.Identify compounds A – E of the reaction sequence shown in Scheme III, making sure to include stereochemistry as appropriate.a) Identify compound A in Scheme III. b) Identify compound B in Scheme III. c) Identify compound C in Scheme III. d) Identify compound D in Scheme III. e) Identify compound E in Scheme III.