Benefiting from the impressive increase in fundamental knowledge, the last 20 years have
shown a continuous burst of new ideas and consequently a plethora of new catalytic …

Asymmetric catalysis is a major theme of research in contemporary synthetic organic
chemistry. The discovery of general strategies for highly enantioselective photochemical …

Geometrical E→ Z alkene isomerization is intimately entwined in the historical fabric of
organic photochemistry and is enjoying a renaissance (Roth et al. Angew. Chem., Int. Ed …

For molecules with a singlet ground state, the population of triplet states is mainly possible
(a) by direct excitation and subsequent intersystem crossing or (b) by energy transfer from …

The [2+ 2] photocycloaddition is undisputedly the most important and most frequently used
photochemical reaction. In this review, it is attempted to cover all recent aspects of [2+ 2] …

The nature of the excited state renders the development of chiral catalysts for
enantioselective photochemical reactions a considerable challenge. The absorption of a …

Relatively few catalytic systems are able to control the stereochemistry of electronically
excited organic intermediates. Here we report the discovery that a chiral Lewis acid complex …

Cyclobutanes and cyclobutenes are important structural motifs found in numerous
biologically significant molecules, and they are useful intermediates for chemical synthesis …

The use of polymer photoreactions dates back some 4000 years to when ancient Egyptians
and Babylonians used sunlight to photo-cross-link linens during mummification and to …

A reaction design is reported in which a substrate-bound chiral Lewis acid complex absorbs
visible light and generates an excited state that directly reacts with a cosubstrate in a highly …