Predict the stereochemistry of the following pericyclic reactions: (a) The thermal Cyclization of a conjugated tetraene (b)
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Predict the stereochemistry of the following pericyclic reactions:
(a) The thermal Cyclization of a conjugated tetraene
(b) The photochemical Cyclization of a conjugated tetraene
(c) A photochemical [4 + 4] cyclo addition
(d) A thermal [2 + 6] cyclo addition
(e) A photochemical [3, 5] sigma tropic rearrangement
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