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Diverse cyclization catalyzed by in(OTf)3 for the convergent assembly of substituted tetrahydrofurans and tetrahydropyrans
Journal article   Peer reviewed

Diverse cyclization catalyzed by in(OTf)3 for the convergent assembly of substituted tetrahydrofurans and tetrahydropyrans

Teck-Peng Loh, Qi-Ying Hu, Kui-Thong Tan and Hin-Soon Cheng
Organic Letters, Vol.3(17), pp.2669-2672
23/08/2001

Abstract

(Equation presented) A novel In(OTf) 3 -catalyzed (3,5) oxonium-ene type cyclization for the facile construction of various multisubstituted tetrahydrofurans and tetrahydropyrans was successfully developed. Further mechanistic investigations unveiled an In(OTf) 3 -catalyzed skeletal reorganization of the tetrahydrofuran to its thermodynamic isomer under thermal conditions.

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