The stepwise mechanism for the formation of flexibilene from diphosphate and isopentenyl diphosphate is to be drawn. The unusual about the cyclization that forms 15 -membered ring of flexibilene is to be stated. Concept introduction: Terpenes are naturally occurring compounds that are present in plants and animals. Terpenes contain one or more isoprene units. Terpenoids are derivatives of terpenes with oxygen containing functional group such as carbonyl groups. Monoterpenes contain two isoprene units, sesquiterpene contain three isoprene units etc. Terpenes and terpenoids can be biologically synthesized from dimethylallyl diphosphate and isopentenyl diphosphate.

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Chapter 29, Problem 33P

Interpretation Introduction

Interpretation: The stepwise mechanism for the formation of flexibilene from diphosphate and isopentenyl diphosphate is to be drawn. The unusual about the cyclization that forms 15-membered ring of flexibilene is to be stated.

Concept introduction: Terpenes are naturally occurring compounds that are present in plants and animals. Terpenes contain one or more isoprene units. Terpenoids are derivatives of terpenes with oxygen containing functional group such as carbonyl groups. Monoterpenes contain two isoprene units, sesquiterpene contain three isoprene units etc. Terpenes and terpenoids can be biologically synthesized from dimethylallyl diphosphate and isopentenyl diphosphate.

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