Yew Chin Teo, Yuanhang Pan and Prof. Choon Hong Tan Organic Dye-Photocatalyzed Acylnitroso Ene Reaction ChemCatChem 5
A rose by any other name: Rose bengal, an inexpensive and readily available organic dye, is demonstrated to be a photoredox catalyst for the formation of transient acylnitroso intermediates under visible light irradiation. Reactions of acylnitroso with a range of functionalized alkenes give intermolecular acylnitrosoene products in moderate to good yields. This is an environmentally friendly allylic amination methodology that avoids the use of metal catalysts and stoichiometric amount of oxidants.
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