The product of the electrocyclic reaction should be predicted. Concept Introduction : Electrocyclic reactions are caused by either photochemical or thermal conditions. The disrotatory and conrotatory closure of the ring depends on the number of π electrons along with the given condition. π electrons Thermal Photochemical Four π electrons Conrotatory Disrotatory Six π electrons Disrotatory Conrotatory

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Chapter 16.9, Problem 4LTS

Interpretation Introduction

Interpretation: The product of the electrocyclic reaction should be predicted.

Concept Introduction : Electrocyclic reactions are caused by either photochemical or thermal conditions. The disrotatory and conrotatory closure of the ring depends on the number of π electrons along with the given condition.

π electrons Thermal Photochemical
Four π electrons Conrotatory Disrotatory
Six π electrons Disrotatory Conrotatory

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