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π-Strain-Induced Electrophilicity in Small Cycloalkynes: A DFT Analysis of the Polar Cycloaddition of Cyclopentyne towards Enol Ethers

✍ Scribed by Luis R. Domingo; Patricia Pérez; Renato Contreras


Book ID
102173833
Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
161 KB
Volume
2006
Category
Article
ISSN
1434-193X

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✦ Synopsis


Abstract

Small cycloalkynes possess a π‐strain‐induced electrophilicity related to the bending of the C–C^sp^–C^sp^ bond angle. For cyclopentyne and benzyne, the electrophilicity index defined in the context of density functional theory gives a coherent rationale for the reactivity of these cycloalkynes, which may act as electrophiles in polar cycloaddition reactions toward enol ethers. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)