Predict the structure of A Refluxing Xylene OMOM How would you make B from a Diels...
1. Draw in the structure of a diene and a dienophile that would do the Diels-Alder reaction. The diene should contain one (E)-alkene and the dienophile should contain one ester. Major Product heat 2. Draw the major product in the box. Indicate stereochemistry with dashes and wedges. If the compound is racemic, write "+/-", and if it is meso, indicate this. 3. Are there any other regioisomers that could form in this reaction? Explain. 4. Are there any other stereoisomers...
Predict the product in each of the following Diels-Alder reactions.
Predict the product in each of the following Diels-Alder reactions. Cyclopentadience reacts as a diene in the Diels-Alder reaction a great deal faster than does 1,3-butadience. Explain. Predict the diene and dienophile that would lead to each of the following products.
Provide the product structure of the Diels-Alder reaction show
below. Identidy the respective substrates with either diene or
dienophile labels circle the correct answer
1) Provide the product structure of the Diels-Alder reaction show below. Identify the respective substrates with either diene or dienophile labels-circle the correct answer below the substrate. (2 pts) 25 °C OCH3 OH Diene Diene or or Dienophile Dienophile c yclohex-3- eneccbaylc a 2) True or False: Butadiene is an (1 pt) easily handled liquid that...
1) Provide the product structure of the Diels-Alder reaction show below. Identify the respective substrates with either diene or dienophile labels-circle the correct answer below the substrate. (2 pts) Diene Diene or Dienophile or Dienophile
The Diels-Alder reaction involves the coupling between a diene and a dienophile. In the box below draw the structure of the bicyclic product obtained from the Diels-Alder reaction of the following compound with cyclopentadiene. • You do not have to consider stereochemistry. • In cases where there is more than one answer, just draw one.
29. Predict the product for the following reaction. CH,CH SNa 30. Predict the major product for the following reaction O+ HCI 31. Predict the major product for the following reaction. HBr 32. Which diene and dienophile would react to give the following Diels-Alder product? 33. Provide the structure of the major products) for the following reaction Br2
29. Predict the product for the following reaction. CH,CH SNa 30. Predict the major product for the following reaction O+ HCI 31. Predict...
Draw structural formulas for the diene and dienophile that combine in a Diels-Alder reaction to form the product shown. CN H3C Diene + Dienophile → нас • Consider EZ stereochemistry of alkenes. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. • Separate multiple products using the - sign from the drop-down menu.
Consider the Diels-Alder cycloaddition reaction below and complete parts (a)-(b) below. D = deuterium = 2H (a) Draw the major regioisomer (or in other words, constitutional isomer) expected to form. Also, draw appropriate resonance structures to explain why only one constitutional isomer is expected to form. Discuss the interactions between the diene and dienophile that govern this constitutional isomer being the only one expected. (b) Redraw the regioisomer from part (a) and show the appropriate stereochemistry using correct dash/wedge notation expected for the...
Write shown via a Diels Alder reaction the of the diene and the dienophile that would form each of the products structure a. b. OCH3 CO2CH2CH3
4.
Show the product of the following Cope Rearrangment. Make sure to show a transition state that addresses stereochemistry (6 points) Show the product of the following Diels-Alder reaction, assuming Endo Selectivity. Make sure to show an approach or transition state that illustrates how you got your answer Endo Selectivity 6. Show the product of the following Diels-Alder reaction, assuming Exo Selectivity. Make sure to show an approach or transition state that illustrates how you got your answer NO2 Exo...