| Literature DB >> 18816133 |
Kwanruthai Tadpetch1, Scott D Rychnovsky.
Abstract
The rhenium(VII) complex O3ReOSiPh3 is a particularly effective catalyst for Prins cyclizations using aromatic and alpha,beta-unsaturated aldehydes. The reaction conditions are mild, and the highly substituted 4-hydroxytetrahydropyran products are formed stereoselectively. Rhenium(VII) complexes appear to spontaneously form esters with alcohols and to directly activate electron-rich alcohols for solvolysis. Re2O7 and perrhenic acid are equally effective in catalyzing these cyclizations.Entities:
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Year: 2008 PMID: 18816133 PMCID: PMC2665917 DOI: 10.1021/ol8019204
Source DB: PubMed Journal: Org Lett ISSN: 1523-7052 Impact factor: 6.005