W. Fudickar, T. Linker
Release of Singlet Oxygen from Organic Peroxides under Mild Conditions
ChemPhotoChem 2018, 2, 548–558
DOI: 10.1002/cptc.201700235
Singlet oxygen can be released in the dark in nearly quantitative yield from endoperoxides of naphthalenes, anthraces and pyridones as an alternative to its generation by photosensitization. Recently, new donor systems have been designed, which operate at very low temperatures but which are prepared from their parent forms at acceptable rates. Enhancement of the reactivity of donors is conveniently achieved by the design of the substitution pattern or the use of plasmic heating of nanoparticle-bound donors. The most important aim of these donor molecules is to transfer singlet oxygen in a controlled and directed manner to a target. Low temperatures and the linking between donors and acceptors reduce the random walk of oxygen and may force an attack at the desired position. By using chiral donor systems, new stereo centers might be introduced into prochiral acceptors.
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