Nanocrystal photocatalysts trigger stereoselective photocycloaddition

Stereoselective [2 + 2] photocycloaddition provides a desirable synthetic route for target cyclobutane compounds yet remains challenging. In this issue of Chem Catalysis, Weiss and coworkers diligently apply CdSe quantum dots to photocycloaddition reactions and gain nearly quantitative yields of syn-aryl-conjugated vinylcyclobutanes.