The first example of dynamickineticresolution (DKR) of chiral unsaturated carboxylic acids is described. The application of tandem metal–enzyme DKR is a powerful tool for the manufacture of high-value chemical commodities. This new protocol of kineticresolution based on irreversible enzymatic esterification of 3-aryl-4-pentenoic acids with ortho esters was introduced to obtain optically active unsaturated
Europium-Catalyzed Intramolecular Addition of Carboxylic Acid to Nonactivated Alkenes: An Efficient Route to Aryl-Substituted γ-Butyrolactone
作者:Mrinal K. Bera、Manas Bandyopadhyay、Abhijit Nayak
DOI:10.1055/s-0040-1707820
日期:2020.9
be an effective catalyst for intramolecular cyclization of aryl-substituted carboxylicacid to afford arylated γ-butyrolactone. Various attractive features, such as broad substrate scope, a wide range of functional group tolerance, operational simplicity, complete atom economy, and good-to-excellent yields have made this new protocol more appealing. Moreover, this method provides a practical alternative