Aldehydes can be prepared by the Wittig reaction using (methoxymethylene)-triphenylphosphorane as the Wittig reagent and then hydrolyzing

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Aldehydes can be prepared by the Wittig reaction using (methoxymethylene)-triphenylphosphorane as the Wittig reagent and then hydrolyzing the product with acid. For example,

(a) How would you prepare the necessary phosphorane?

(b) Propose a mechanism for the hydrolysisstep.

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Organic Chemistry

ISBN: 9780495112587

7 Edition

Authors: John McMurry

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Question Posted: Feb 23, 2011 05:52 AM

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Aldehydes can be prepared by the Wittig reaction using (methoxymethylene)-triphenylphosphorane as the Wittig reagent and then hydrolyzing

Question:

OCH3 сно (СоНiзр— сноснз H30+ (Methoxymethylene)- triphenylphosphorane

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a b Ph3P BrCHOCH3 HOCH3 H0H protonation ...View the full answer

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