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JEE Main202228 Jul 2022Morning ShiftChemistryHydrocarbonsActual

Identify the correct statement for the below given transformation.

Options

  1. AA - CH 3 CH 2 CH = CH - CH 3 , B - CH 3 CH 2 CH 2 CH = CH 2 , Saytzeff products
  2. BA - CH 3 CH 2 CH = CH - CH 3 , B - CH 3 CH 2 CH 2 CH = CH 2 , Hafmann products
  3. CA - CH 3 CH 2 CH 2 CH = CH 2 , B - CH 3 CH 2 CH = CHCH 3 , Hofmann products
  4. DA - CH 3 CH 2 CH 2 CH = CH 2 , B - CH 3 CH 2 CH = CHCH 3 , Saytzeff products

Correct answer

C. A - CH 3 CH 2 CH 2 CH = CH 2 , B - CH 3 CH 2 CH = CHCH 3 , Hofmann products

Step-by-step solution

The Hofmann rule states that the major alkene product is the least substituted and least stable product when it comes to asymmetrical amines. So, major product will be pent-1-ene and minor product will be pent-2-ene.

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