] Draw the structure of Diels-Alder cycloadduct formed via an endo 3. [а, transition state structure involving the diene and dienophile shown here. [b Formulate the endo transition structure that leads to the product. [c is observed. Does it correspond to a primary or a secondary KIE? Explain. [d. the 'inverse' variety? Explain. -CO2E† ]A KIE ] Is the KIE of the 'normal’ or

] Draw the structure of Diels-Alder cycloadduct formed via an endo 3. [а, transition state structure involving the diene and dienophile shown here. [b Formulate the endo transition structure that leads to the product. [c is observed. Does it correspond to a primary or a secondary KIE? Explain. [d. the 'inverse' variety? Explain. -CO2E† ]A KIE ] Is the KIE of the 'normal’ or

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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4.- Predict the product for each Diels-Alder reaction. Indicate stereochemistry where appropriate. स a) b) H3C, H3C + H3C CHO A ent 10 150 COOH + ·E· <- c) COOH BAS 5.- Retro Diels-Alder: show a combination of diene and dienophile that would result in each Diels-Alder adduct.
13:20 4G O 8. Which factors affect the reaction rate in Diels-Alder reactions? OA Electron donating group on the diene and electron withdrawing group on dienophile. OB. Electron donating group on both the diene and the dienophile. OC Electron withdrawing group on both the diene and the dienophile. OD. Addition of catalyst Add a caption... > Status (Custom) +
5.- Retro Diels-Alder: show a combination of diene and dienophile that would result in each Diels-Alder adduct. a) b) c) H3C. CHO '' CHO CN CN miwoll
5. Draw a detailed mechanism and give the products for the following Diels-Alder reaction. Label the Endo and Exo diastereomer. + ZON Ph
09:19 ull 4G Which factors affect the reaction rate in Diels-Alder reactions? OA. Electron.donating group on the diene and electron withdrawing group on dienophile. O B. Electron donating group on both the diene and the dienophile. OC. Electron withdrawing group on both the diene and the dienophile. O D. Addition of catalyst. Add a caption... > Status (Custom)
Draw structural formulas for the diene and dienophile that combine in a Diels-Alder reaction to form the product shown. Diene + Dienophile ? CH3 Consider E/Z 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. Lits O. Sn [F CH3
3. .) Draw the structure for the product of this Diels-Alder reaction. Label the diene and dieneophile. TO ESOS SA tsmoving pitar Ooled asluoslom ili lo rons eds. (ziq 8) + H + HM
Rank the dienes by DECREASING REACTIVITY in Diels-Alder reactions (most reactive on the left). CN CH3 OCH3 II II IV O A. V > IV > || > | > || O B. V > || > NIl > | > IV O C. IV > T > I| > ||| > V O D. II > |II > V >[ > ]V O E. V > III > I|| > | > IV A Moving to another question will save this response. ype here to search
3. What condition(s) would you use to convert the Diels-Alder product (boxed) into each of the diastereomeric diol-imides A, B, and C below. H 30-40-50 1 HO,, HO H H A N ? HO,,. HO C (racemic) ? но. HO H H B
b) Which of these dienophiles gives the FASTEST reaction with cyclopentadiene? CH2 CH2 A. | В. C. | D. | Give structures for the major Diels-Alder product of the following reactions: 1,3- cyclohexadiene and tetrachloroethene 1,3-cylcohexadiene and fumaric acid, the trans isomer of maleic acid с.
Which of these do you think is most easily reduced by hydride? || IV V ||| H I H || III H IV V
structures for the diene and dienophile you woul C-H uphquqs H. C-OCH2CE dal woy bns