Why does the diene shown below fail to undergo a Diels-Alder reaction with even the most reactive dienophiles? 
Definitions:
Electric Charges
Electric charges are the physical properties of particles that cause them to attract or repel each other, based on the principle that like charges repel and opposite charges attract.
Nerves
Bundles of fibers that transmit electrical impulses between the brain, spinal cord, and other parts of the body, facilitating communication and responses.
Electromyography (EMG)
The insertion of needles into selected skeletal muscles for the purpose of recording nerve conduction time in relation to muscle contraction.
Electrical Activity
The movement or flow of electrical charges, often referring to physiological processes in the body.
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