Consider the reaction of two compounds 'A' and 'B' which could make two possible diastereomers 'AB' and 'BA' (much like this week's Diels Alder reaction). Reaction pathway 1: A + B → AB E, = 12.0 kJ/mol AG = -30.0 kJ/mol Reaction pathway 2: A + B – BA E = 13.0 kJ/mol AG=-21.7 kJ/mol a a) Which of the two products (A or B) will form in greater abundance under thermoydynamic control? Which will form in greater abundance under kinetic control? Explain your responses using a sketch of the reaction coordinate diagram for the reactions described above. b) Assuming kinetic reaction control, how much more of the kinetically favored product will form (as a percentage of the total product) when the reaction is run to completion at 275 K? Show your calculation. c) Assuming thermodynamic reaction control, how much more of the thermodynamically favored product will form (as a percentage of the total product) when the reaction is run to completion at 450K? Show your calculation.

Consider the reaction of two compounds 'A' and 'B' which could make two possible diastereomers 'AB' and 'BA' (much like this week's Diels Alder reaction). Reaction pathway 1: A + B → AB E, = 12.0 kJ/mol AG = -30.0 kJ/mol Reaction pathway 2: A + B – BA E = 13.0 kJ/mol AG=-21.7 kJ/mol a a) Which of the two products (A or B) will form in greater abundance under thermoydynamic control? Which will form in greater abundance under kinetic control? Explain your responses using a sketch of the reaction coordinate diagram for the reactions described above. b) Assuming kinetic reaction control, how much more of the kinetically favored product will form (as a percentage of the total product) when the reaction is run to completion at 275 K? Show your calculation. c) Assuming thermodynamic reaction control, how much more of the thermodynamically favored product will form (as a percentage of the total product) when the reaction is run to completion at 450K? Show your calculation.

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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Question

Consider the reaction of two compounds 'A' and 'B' which could make two
possible diastereomers 'AB' and 'BA' (much like this week's Diels Alder reaction).
Reaction pathway 1: A + B → AB E, = 12.0 kJ/mol AG = -30.0 kJ/mol
Reaction pathway 2: A + B – BA E = 13.0 kJ/mol AG=-21.7 kJ/mol
a
a) Which of the two products (A or B) will form in greater abundance under thermoydynamic
control? Which will form in greater abundance under kinetic control? Explain your responses
using a sketch of the reaction coordinate diagram for the reactions described above.
b) Assuming kinetic reaction control, how much more of the kinetically favored product will
form (as a percentage of the total product) when the reaction is run to completion at 275 K?
Show your calculation.
c) Assuming thermodynamic reaction control, how much more of the thermodynamically
favored product will form (as a percentage of the total product) when the reaction is run to
completion at 450K? Show your calculation.

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