7. Starting with an alkyl bromide, outline an efficient Wittig synthesis for the target alkene (1) shown below. 1 a) Show the structure of your alkyl bromide, and how it reacts with (Ph);P to form the Wittig salt. b) Show the Wittig salt and how it reacts with a strong base to form the ylide. For strong base you can use sodium ethoxide (EtONa). c) Show the two resonance structures of the ylide formed above. d) Show how the ylide reacts with an aldehyde or ketone of your choice to form the target alkene (1).
7. Starting with an alkyl bromide, outline an efficient Wittig synthesis for the target alkene (1) shown below. 1 a) Show the structure of your alkyl bromide, and how it reacts with (Ph);P to form the Wittig salt. b) Show the Wittig salt and how it reacts with a strong base to form the ylide. For strong base you can use sodium ethoxide (EtONa). c) Show the two resonance structures of the ylide formed above. d) Show how the ylide reacts with an aldehyde or ketone of your choice to form the target alkene (1).
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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:7. Starting with an alkyl bromide, outline an efficient Wittig synthesis for the target alkene (1) shown
below.
1
a) Show the structure of your alkyl bromide, and how it reacts with (Ph);P to form the Wittig
salt.
b) Show the Wittig salt and how it reacts with a strong base to form the ylide. For strong base
you can use sodium ethoxide (ETONA).
c) Show the two resonance structures of the ylide formed above.
d) Show how the ylide reacts with an aldehyde or ketone of your choice to form the target
alkene (1).
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