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Published on: May 21, 2019
A tetramethoxybenzophenone as efficient triplet photocatalyst for the transformation of diazo compounds
Lourdes Pastor-Pérez1, Christine Wiebe, Julia Pérez-Prieto
1Instituto de Ciencia Molecular/ICMOL, Universidad de Valencia, Polígono La Coma s/n, Apartado de Correos 22085, 46980 Valencia, Spain.
Abstract:
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.
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