This publication describes a highly selective oxidation of aldehydes to the corresponding acids or esters. The reaction proceeds under metal-free conditions by using N-heterocyclic carbenes as organocatalysts in combination with environmentally friendly oxygen as the terminal oxidation agent. © 2013 Möhlmann et al.
Möhlmann, L., Ludwig, S., & Blechert, S. (2013). NHC-catalysed highly selective aerobic oxidation of nonactivated aldehydes. Beilstein Journal of Organic Chemistry, 9, 602–607. https://doi.org/10.3762/bjoc.9.65