The following [3+2] cycloaddition was reported in Organic Letters, 2011, 402. Predict whether the reaction would be thermally or photochemically promoted. Justify your answer by showing overlap of the correct molecular orbitals. Assume the alkene is the electrophile. ![The following [3+2] cycloaddition was reported in Organic Letters, 2011, 402. Predict whether the reaction would be thermally or photochemically promoted. Justify your answer by showing overlap of the correct molecular orbitals. Assume the alkene is the electrophile.](https://d2lvgg3v3hfg70.cloudfront.net/TB6198/11eab45f_ce25_fc22_acdb_676d710f2d69_TB6198_00.jpg)
Definitions:
Lens
A curved piece of glass or other transparent materials used in devices like glasses, cameras, and microscopes to focus light rays.
Extrasensory Perception
The claimed ability to obtain information without the use of known sensory processes or physical interaction.
Sensory Organs
Specialized organs of the body that are designed to receive and process sensory information, such as eyes for vision and ears for hearing.
Weber's Constant
A principle in psychophysics stating that the smallest perceptible change in a stimulus is proportional to the original intensity of the stimulus.
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