Problem: (a) Draw two resonance structures of the cation shown below, shifting only one electron pair in each step. Be sure to include the formal charge on structures B and C. Only move one double bond. Each resonance structure should contain only one charge- positive charge.(b) Use curved-arrow notation on the given structure A to show its conversion to structure B, and then on structure B to show its conversion to structure C.

FREE Expert Solution

Pi electrons from double bond ā†’ resonate ā†’ Carbocation shift

View Complete Written Solution
Problem Details

(a) Draw two resonance structures of the cation shown below, shifting only one electron pair in each step. Be sure to include the formal charge on structures B and C. Only move one double bond. Each resonance structure should contain only one charge- positive charge.

(b) Use curved-arrow notation on the given structure A to show its conversion to structure B, and then on structure B to show its conversion to structure C.