(Per)fluorinated
substances represent an important compound class
with regard to drug design and material chemistry. We found a mild,
operationally simple, and inexpensive photocatalytic perfluoroalkenylation
reaction giving tetrasubstituted, highly electron-deficient enals
straight from aldehydes. This one-step reaction tolerates various
functional groups and can be applied to a wide range of substrates
giving the products in yields of 52–84%.