BACKGROUND In part A of this experiment, the Wittig salt is prepared through the nucleophilic displacement of chloride ion by triphenylphosphine: Ph, Ph P-C-Ph Ph Ph;P: + Ph Wittig salt • The positive charge on phosphorus makes the protons on the adjacent carbon highly acidic. • In part B, a strong base (sodium ethoxide) is used to abstract this acidic proton and produce the phosphorus ylide. 1. Write the chemical equation for the reaction between the Wittig salt and sodium ethoxide (a strong base) to yield the phosphorus ylide. 2. Write the chemical equation for the reaction between the ylide and cinnamaldehyde to yield the trans, trans isomer of the product. There is no need to include byproducts.
BACKGROUND In part A of this experiment, the Wittig salt is prepared through the nucleophilic displacement of chloride ion by triphenylphosphine: Ph, Ph P-C-Ph Ph Ph;P: + Ph Wittig salt • The positive charge on phosphorus makes the protons on the adjacent carbon highly acidic. • In part B, a strong base (sodium ethoxide) is used to abstract this acidic proton and produce the phosphorus ylide. 1. Write the chemical equation for the reaction between the Wittig salt and sodium ethoxide (a strong base) to yield the phosphorus ylide. 2. Write the chemical equation for the reaction between the ylide and cinnamaldehyde to yield the trans, trans isomer of the product. There is no need to include byproducts.
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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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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![BACKGROUND
In part A of this experiment, the Wittig salt is prepared through the nucleophilic displacement of
chloride ion by triphenylphosphine:
Ph,
Ph P-C-Ph
Ph
Ph;P: + Ph
Wittig salt
• The positive charge on phosphorus makes the protons on the adjacent carbon highly acidic.
• In part B, a strong base (sodium ethoxide) is used to abstract this acidic proton and produce
the phosphorus ylide.
1. Write the chemical equation for the reaction between the Wittig salt and sodium ethoxide (a
strong base) to yield the phosphorus ylide.
2. Write the chemical equation for the reaction between the ylide and cinnamaldehyde to yield the
trans, trans isomer of the product. There is no need to include byproducts.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F16030cd3-6f82-495c-ab93-3422ea8080ff%2Fba865438-e872-4dd3-8f18-b5a714dcdb42%2Fx985we7_processed.png&w=3840&q=75)
Transcribed Image Text:BACKGROUND
In part A of this experiment, the Wittig salt is prepared through the nucleophilic displacement of
chloride ion by triphenylphosphine:
Ph,
Ph P-C-Ph
Ph
Ph;P: + Ph
Wittig salt
• The positive charge on phosphorus makes the protons on the adjacent carbon highly acidic.
• In part B, a strong base (sodium ethoxide) is used to abstract this acidic proton and produce
the phosphorus ylide.
1. Write the chemical equation for the reaction between the Wittig salt and sodium ethoxide (a
strong base) to yield the phosphorus ylide.
2. Write the chemical equation for the reaction between the ylide and cinnamaldehyde to yield the
trans, trans isomer of the product. There is no need to include byproducts.
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