Reactive diene for synthesis of substituted catechols
作者:Benjamin J. Compton、David S. Larsen、Lesley Larsen、Rex T. Weavers
DOI:10.1016/j.tetlet.2007.11.085
日期:2008.1
(2R,3R)-2,3-Dimethoxy-2,3-dimethyl-5,6-dimethylene-1,4-dioxane has been synthesized and is a highly efficient diene in Diels–Alder reactions. Reaction with acetylenic dienophiles provides a simple route to substituted catechols. Reactions with some ethylenic dienophiles are also reported.
Synthesis and diastereoselective Diels–Alder reactions of homochiral C2-symmetric butane-1,2-diacetal-based 1,3-dienes
作者:Bruno Linclau、Philip J. Clarke、Mark E. Light
DOI:10.1016/j.tetlet.2009.10.015
日期:2009.12
The C2-symmetric, butane diacetal (BDA) auxiliary-based dienes 2 and 3 are described, which display moderate to excellent diastereoselectivities in Diels–Alder reactions with a range of dienophiles under thermal and Lewis acid-catalysed conditions.