Synthesis of Enantiomerically Pure Cyclohex-2-en-1-ols: Development of Novel Multicomponent Reactions
作者:Dirk Strübing、Anett Kirschner、Helfried Neumann、Sandra Hübner、Stefan Klaus、Uwe T. Bornscheuer、Matthias Beller
DOI:10.1002/chem.200401258
日期:2005.7.4
Multicomponent reactions of aldehydes, dienophiles, and alcohols or carboxylic acid anhydrides have been developed for the first time. In situ generation of 1-acyloxy- and 1-alkoxy-1,3-butadiene derivatives in toluene in the presence of electron-deficient dienophiles provides selective and efficient access to functionalized cyclohex-2-ene-1-ols in good yields. Subsequent enzyme-catalyzed kinetic resolution