The Role of Dry Ether in Wrutz Reaction: Wurtz Reaction: Use of Dry Ether (For CBSE, ICSE, IAS, NET, NRA 2022)

Get unlimited access to the best preparation resource for competitive exams : get questions, notes, tests, video lectures and more- for all subjects of your exam.

Title: The Role of Dry Ether in Wrutz Reaction

  • As sodium is highly reactive a less reactive solvent must be used. Hence dry ether acts as a polar and aprotic solvent.
  • Dry ether is used in Wurtz reaction.
  • Before knowing why dry ether is used let us first know what Wurtz reaction is.

Wurtz Reaction

Wrutz Reaction
  • In Wurtz reaction sodium metal is used which is very reactive.
  • Wurtz՚s reaction is an organic chemical coupling reaction wherein sodium metal is reacted with two alkyl halides in the given environmental conditions by a solution of dry ether in order to form a higher alkane along with a compound containing sodium and the halogen.
  • So selection of the solvent is done in such a way that the sodium metal does not react with the solvent.
  • The general form of the Wurtz reaction equation can be written as follows:

  • It can be noted that the two R groups are joined, yielding an alkane with a longer chain along with , where X is a Halogen.

Use of Dry Ether

  • Dry ether is a solvent which does not react with sodium.
  • The reaction is conducted in the presence of sodium metal which is highly reactive, hence, so a solvent must be selected in such a way that, it will not react with the sodium metal.
  • Also, the alkyl halide must dissolve in the solvent.
  • Alkyl halide used in the reaction should be soluble in the solvent and the alkyl halide formed should be insoluble so that it can be easily removed and alkane formed should remain in solution.
  • The sodium halide formed must be insoluble in the solvent which can be easily removed, and alkane formed must remain in the solution.
  • The reaction condition requires an aprotic solvent as the medium of the reaction.
  • Dry ether is a very good non-polar, aprotic solvent for this purpose.
  • Since dry ether is a good non-polar, aprotic solvent, so it is used in Wurtz reaction

Dry Ether is Used as Catalyst

Illustration 2 for Dry_ether_is_used_as_catalyst

Developed by: