Question

hyperconjugation structures in butanone​

Answer 1

Hyperconjugation structure of butanone are drawn

•Hyperconjugation is conjugation of sigma & pi bonds or sigma or pi electrons

•For hyperconjugation Sp² hybrid carbon must be present alongwith alpha hydrogen

•More the number of hyperconjugating structures more is the stability of compound

• Hyperconjugation is also known as no bond resonance

• It is weaker than resonance because in resonace pi electrons are exchanged & in Hyperconjugation sigma bond electrons are displaced . Hence resonance is stronger than Hyperconjugation .

• Since , Butanone has 5 alpha hydrogen , hence it will have 5 Hyperconjugation structure

• Hyperconjugation structure of butanone are given below :