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What is difference between saytzeff's rule …

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What is difference between saytzeff's rule and haffmam rule
  • 2 answers

Sneha Kakadiya 4 years ago

The Hofmann Elimination is an elimination reaction of alkylammonium salts that forms C-C double bonds [pi bonds]. ... In contrast with most elimination reactions that yield alkenes, which follow the Zaitsev (Saytzeff) rule, the Hofmann elimination tends to provide the less substituted alkene

Yogita Ingle 4 years ago

Dehydrohalogenation of secondary- and tertiary-alkyl halides involves removal of the ?-hydrogen from the carbon that has the smallest number of hydrogens. This is Saytzeff rule.

According to this rule, major product is the most substituted alkene i.e., major product is obtained by elimination of H from that ?-carbon which has the least number of hydrogen. Product of the reaction in this case is known as Saytzeff product.         

(ii) Hofmann rule : According to this rule, major product is always least substituted alkene i.e., major product is formed from ?-carbon which has maximum number of hydrogen. Product of the reaction in this case is known as Hofmann product.            

Dehydrohalogenation of secondary- and tertiary-alkyl halides involves removal of the ?-hydrogen from the carbon that has the smallest number of hydrogens. This is satzeff rule.

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