Organic Chemistry
Improve your experience by picking them
Triphenylphosphine is often used to form ylides. Why is a smaller similar compound acting as a better nucleophile (like triethylphosphine) not used to synthesize most phosphorus ylides?
Consider the reaction below:
i. Show how you would use a Wittig reaction to accomplish the transformation.
ii. Show how you might do this using an alternative method, and then explain why the Wittig reaction is a much better synthesis.
Show how these transformations can be performed efficiently using any necessary reagents.
Predict the plausible synthesis that would efficiently carry out the following conversion. Use any necessary additional reagents.
Provide the pairings of carbonyls and phosphonium ylides that could be used to synthesize this alkene.
Determine an appropriate carbonyl compound and a Wittig reagent to form (Z)-5-ethylhept-3-en-2-one.