Robuta

https://pubs.rsc.org/en/content/articlelanding/2019/sc/c8sc05476b Functionalized spirolactones by photoinduced dearomatization of biaryl compounds - Chemical Science... The idea of using biaryl structures to generate synthetic building blocks such as spirolactones is attractive because biaryl structures are abundant in biomass... functionalizedcompoundschemicalscience