Copper catalyst activation driven by photoinduced electron transfer: a prototype photolatent click catalyst.
PET cat. While the copper(II) tren ketoprofenate precatalyst 1 (see picture) is inactive at room temperature in methanol, it is quantitatively and rapidly reduced to its cuprous state upon light irradiation to provide a highly reactive click catalyst. By simply introducing air into the reaction medium the catalysis can be switched off and then switched on again by bubbling argon followed by irradiation.
Université Bordeaux-CNRS UMR 5255, 351 Crs de la Libération, 33405 Talence, France.
Lydie
L
Harmand
Sarah
S
Cadet
Brice
B
Kauffmann
Luca
L
Scarpantonio
Pinar
P
Batat
Gediminas
G
Jonusauskas
Nathan D
ND
McClenaghan
Dominique
D
Lastécouères
Jean-Marc
JM
Vincent