IMPORTANT NAME REACTIONS IN HALOALKANES AND HALOARENES

  1. Finkelstein Reaction: When alkyl halide reacts with sodium iodide in the presence of Acetone. Alkyl iodide and Sodium halide is formed.
    For ex. image
  2. Swarts Reaction: When alkyl Bromide or Chloride reacts with silver or mercurous fluoride image, Fluoro halide are formed .for ex.
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  3. Hundsdiecker Reaction: Silver salts of carboxylic acids are decomposed by Bromine or iodine in the presence of carbon Tetrachloride.
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  4. Sandmeyer’s Reaction: Chloroarenes and Bromoarenes are prepared by treating a freshly prepared diazonium salt solution with cuprous chloride or Bromide dissolved in corresponding halogen acids. This is known as Sandmeyer Reaction.

  5. Gattermann Reaction: It is a modification of sandmeyer reaction. We use copper powder in the presence of halogen acid in place of cuprous halide dissolved in halogen acid (CuCl/HCl or CuBr/HBr).
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  6. Wurtz Reaction: When two alkyl halides are treated with sodium, ether, alkanes are formed. This reaction is used to increase number of Carbon atoms.
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    Wurtz Fittig Reaction: When alkyl halide are treated with aryl halides in presence of sodium in anhydrous ether halogen atom is replaced by alkyl group. This is known as Wurtz fittig Reaction
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  7. Fittig Reaction: When haloarenes react with Sodium in presence of ether diphenyl is formed. This reaction is called Fittig reaction.

Post Author: E-Chemistry

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