Wittig reaction

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A mechanism to prepare alkenes by reacting an aldehyde or ketone with a phosphonium salt ylide.

Figure 47.19: Wittig reaction. Note: ylides are molecules that have a positively-charged phosphorous and a negatively-charged carbon, which makes the net charge neutral.
$\includegraphics[width=5in]{img-o-wittig_rxn.eps}$

**Figure 47.19:** Wittig reaction. *Note: ylides are molecules that have a positively-charged phosphorous and a negatively-charged carbon, which makes the net charge neutral.*
$\includegraphics[width=5in]{img-o-wittig_rxn.eps}$

Alfa Diallo 2006-08-04