The oxidation of volatile organic compounds is a major contributor to atmospheric aerosol, which affects climate and health. The α-pinene and ozone system is particularly efficient in this regard, but how exactly do these two molecules lead to aerosol?

What happens to materials when they are built from squares?

The coupling of aryl halides and arylboronic acids is generally performed by metal-catalysed Suzuki–Miyaura reactions while metal-free approaches remain elusive. Here an organocatalytic approach based on amine catalysts is introduced for the preparation of commercially relevant asymmetric biaryls.