Nucleophilic polymer-supported tertiaryphosphine organocatalysis: [3+2] annulation reaction of alkyl 2-butynoates with activated alkenes

Abstract

JandaJel resin-supported triphenylphosphine(JJ-TPP), was used as an effective organocatalyst for the [3+2] annulation reaction of alkyl 2-butynoates with electron-deficient alkenes to afford the corresponding cyclopentenes in 40%–68% isolated yields. JJ-TPP was reused after simple filtration and vacuum drying.

Keywords

Organocatalysis / Polymer-supported tertiaryphosphine / [3+2] Annulation reaction

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