Ring-rearrangement metathesis of 3,6-dialkoxy-3,6-dihydro-2H-pyrans

TETRAHEDRON LETTERS

卷:49

Article

Donnard, Morgan¹  Tschamber, Theophile¹  Desrat, Sandy¹  Hinsinger, Karen¹  Eustache, Jacques¹ 

[1] Univ Haute Alsace, Ecole Natl Super Chim, CNRS, Lab Chim Organ & Bioorgan Associe, F-68093 Mulhouse, France

关键词: ring-rearrangement metathesis;    cascade metathesis;    RCM;    ROM;   

DOI  :  10.1016/j.tetlet.2007.12.047

来源: Elsevier

【 摘 要 】

The first RCM-ROM-RCM sequence using a non-strained heterocycle as relay moiety is described. The course of the reaction strongly depends on the nature and relative configuration of the substituents in the starting trienic system. In addition, for a productive reaction to be observed, the site of initiation of the metathesis cascade is crucial. The compounds thus obtained may be useful for the synthesis of unusual polydeoxydisaccharides. (C) 2007 Elsevier Ltd. All rights reserved.

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