Regulatory mechanisms for the photogeneration of singlet/triplet siloxy carbenes and their involvement in [2+1] photocyclizations have been thoroughly studied at the CASPT2//CASSCF/PCM level of theory.
This review demonstrates the redox-neutral synthetic approaches towards valuable heterocycles such as isoquinolines, indoles, isoquinolones, and tetrahydroquinolines via high-valent Cp*Co(III) catalysis.
Developments in synthetic methods for and reactivity of heavier tetrylene and tetrylyne complexes of the d-block elements are summarised, with a view towards cooperative bond activation and utilisation in catalysis.
Recent advancements in research on halogen atom transfer (XAT)-driven carbon radical chemistry for organohalides from the perspective of various relayed radicals such as aryl, alkyl, silyl, and boryl radicals are discussed.
The visible-light irradiation of acylsilanes bearing tethered vinyl ketones promotes an intramolecular Stetter-type reaction via siloxycarbene intermediates that produces benzocyclobutenone scaffolds.