Fill in the Missing Starting Material for the Synthesis Below

question 4

Short Answer

Fill in the missing starting material for the synthesis below.

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Definitions:

Resonance Structure

Different way to draw the structure of a molecule that can't be represented by a single Lewis structure; these structures depict the delocalization of electrons within the molecule.

Cation

A positively charged ion that results from the loss of one or more electrons.

Resonance Form

Alternative structures of a molecule that depict its electrons in different positions, illustrating delocalization within the molecule.

Line-Angle Formula

A shorthand representation of organic molecules where lines represent bonds and vertices represent carbon atoms, simplifying structural depiction.