Question

Question:Draw all reasonable resonance structures for acetic anhydride

Short answer

The process of delocalization of pi-bond throughout the structure of a compound in presence of an adjacent sp² hybridized carbon center or a carbanion center is known as resonance. The resonance structure of allyl carbanion is shown below:

Resonance in allyl carbanion

Step-by-step solution

Resonance

The process of delocalization of pi-bond throughout the structure of a compound in presence of an adjacent sp² hybridized carbon center or a carbanion center is known as resonance. The resonance structure of allyl carbanion is shown below:

Resonance in allyl carbanion

Determination of resonance structure of acetic anhydride

The central oxygen atom participates in resonance with either of the two carbonyl group. The resonance structure of acetic anhydride is given below:

Resonance structure of acetic anhydride