Visible-light photocatalyzed oxidative decarboxylation of oxamic acids: a green route to urethanes and ureas
Language
en
Article de revue
This item was published in
Chemical Communications. 2018, vol. 54, n° 67, p. 9337 - 9340
Royal Society of Chemistry
English Abstract
A sustainable metal-free route to urethanes and ureas based on a photocatalyzed oxidative decarboxylation of oxamic acids is described. The reaction includes in situ generation of an isocyanate from the oxamic acid, using ...Read more >
A sustainable metal-free route to urethanes and ureas based on a photocatalyzed oxidative decarboxylation of oxamic acids is described. The reaction includes in situ generation of an isocyanate from the oxamic acid, using an organic dye as a photocatalyst, a hypervalent iodine reagent as an oxidant and a light source, which trigger the free-radical decarboxylation. This protocol successfully avoids the isolation, purification and storage of carcinogenic isocyanates and allows elaboration of urethanes and ureas in a one-pot process from commercially available sources.Read less <
Origin
Hal imported