The product is whether formed by conrotatory or disrotatory process for the given electrocyclic ring closure is to be stated. The given reaction whether occurs under photochemical or thermal conditions is to be predicted. Concept introduction: Electrocyclic reactions are pericyclic reactions which takes place by concerted mechanism. These reactions involve ring opening or ring closure in a conjugated polyene.

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Chapter 25, Problem 32P

Interpretation Introduction

Interpretation: The product is whether formed by conrotatory or disrotatory process for the given electrocyclic ring closure is to be stated. The given reaction whether occurs under photochemical or thermal conditions is to be predicted.

Concept introduction: Electrocyclic reactions are pericyclic reactions which takes place by concerted mechanism. These reactions involve ring opening or ring closure in a conjugated polyene.

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