Sequential Photocatalytic Reactions for the Diastereoselective Synthesis of Cyclobutane Scaffolds
作者:Mark J. Deeprose、Martin Lowe、Adam Noble、Kevin I. Booker-Milburn、Varinder K. Aggarwal
DOI:10.1021/acs.orglett.1c03746
日期:2022.1.14
The synthesis of densely functionalized cyclobutanes containing all-carbon quaternary stereocenters in high regio- and diastereoselectivity remains synthetically challenging. Herein, we show that this can be achieved by using a sequential photocatalysis strategy, wherein 3-chloromaleimides undergo triplet sensitized [2 + 2] photocycloadditions with alkynes or alkenes followed by photoredox-catalyzed