Question: Coronafacic acid, a bacterial toxin, was synthesized using a key step that involves three sequential pericyclic reactions. Identify them, and propose a mechanism for the

Coronafacic acid, a bacterial toxin, was synthesized using a key step that involves three sequential pericyclic reactions. Identify them, and propose a mechanism for the overall transformation. I low would you complete theSynthesis?

Et H Et CH . CH 185 "C CH Et H Coronafacic

Et H Et CH . CH 185 "C CH Et H Coronafacic acid O2 .

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Ayy Reaction 1 Reaction 2 Reaction 3 CHCH3 CHCH3 H 3 CHCH3 HC CHCH3 Reverse DielsAlder 42 ... View full answer

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