A tetramethoxybenzophenone as efficient triplet photocatalyst for the transformation of diazo compounds.
The aromatic ketone 2,2',4,4'-tetramethoxybenzophenone has a strong absorption band between 300 and 375 nm, and its pi,pi* triplet excited-state is selectively populated in methanol. Both facts make this aromatic ketone a versatile and efficient triplet photocatalyst for the transformation of alpha-diazo carbonyl compounds into mainly the cyclopropanation product.
Pastor-Pérez
Lourdes
L
Instituto de Ciencia Molecular/ICMOL, Universidad de Valencia, Polígono La Coma s/n, Apartado de Correos 22085, 46980 Valencia, Spain.
Wiebe
Christine
C
Pérez-Prieto
Julia
J
Stiriba
Salah-Eddine
SE