Simun mishra Asked a Question
July 26, 2020 1:06 pmpts 30 pts
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  • Dinesh khalmaniya Best Answer
    The Wittig reaction or Wittig olefination is a chemical reaction of an aldehyde or ketone with a triphenyl phosphonium ylide (often called a Wittig reagent) to give an alkene and t...
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    Simun mishra
    no sir I m asking what the use of etheral soln to make wittig reagent
  • Dinesh khalmaniya thankyou
    hope this will help you
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  • Ashutosh singh
    Dear student, The reported effect of the solvent on the stereochemical outcome of the olefination reaction depends on the nature of the ylide. For non- stabilized ylides under clas...
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    Ashutosh singh
    We sometimes use THF also...it's either THF or diethyl ether!
  • Dinesh khalmaniya
    PPh3 attack on alkyl halide to give PPh3+R. and then we use base to form ylide
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    Simun mishra
    why not use direct pph3+R ....?why use Yild
  • Ashutosh singh
    wait, let me explain this to you in detail!
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  • Dinesh khalmaniya
    here PPh3 is an nucleophile so it is used to form ylide
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  • Dinesh khalmaniya
    here PPh3+R- ylide is formed. it is reactive species in this reaction
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