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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 20, 1990 - Issue 16
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Original Articles

Enhanced Reactivity of Chelating Ortho Esters and Dithio-Ortho Esters Towards Grignard Reagents

Roy P. Houghton School of Chemistry and Applied Chemistry, University of Wales College of Cardiff, Cardiff, CF1 3TB
&
Jane E. Dunlop School of Chemistry and Applied Chemistry, University of Wales College of Cardiff, Cardiff, CF1 3TB
Pages 2387-2400 | Received 30 May 1990, Published online: 24 Oct 2006
 
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Abstract

2-Alkoxy-1,3-dithianes, 2-alkoxy-1,3-benzdithioles and bis(2-alkoxy-1,3-dioxolanes) react substantially faster with phenylmagnesium bromide and phenylethynylmagnesium bromide when the 2-alkoxy group can act as a chelating system for magnesium(II).

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