Draw All of the Resonance Structures of the Sigma Complex

question 53

Essay

Draw all of the resonance structures of the sigma complex which is formed when benzene reacts with an electrophile (E⁺).

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Definitions:

Vertebrates

Animals that possess a backbone or spinal column, including fishes, amphibians, reptiles, birds, and mammals.

Hemichordata

A phylum of marine animals that share some traits with chordates, such as a dorsal nerve cord, but have distinct features like a stomochord.

Larval Tunicates

The juvenile stage of tunicates (marine invertebrates), which is free-swimming and undergoes metamorphosis into the adult form.

Superficially Resemble

To appear similar or alike on the surface, but possibly different in more profound or structural aspects.