Thu January 05, 2012 By: Tanya Singh

Why Wurtz fittig reaction is not suitable for odd number carbon chains?

Expert Reply
Thu January 05, 2012
Wurtz fittig reaction is used for alkylation of aryl halides.While in Wurtz reaction,two moles of alkyl halides reacts with two moles of sodium molecule to produce symmetrical alkane.
CH3Br +2Na + CH3Br ? CH3 CH3 + 2NaBr
In  case, two different alkyl halides are taken in order to prepare alkane with odd number of carbon atoms, a mixture of three alkanes will be produced as follows:
Therefore, this method is not suited to prepare alkanes containing odd number of carbon atoms. Methane, however, cannot be prepared by this method.
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