Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 27, Issue 7, Pages 2452-2462Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.202004234
Keywords
arylation; biomimetics; diazonium; Meerwein; styrene
Categories
Funding
- Graduate School Molecular Science (GSMS)
- Projekt DEAL
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Metal and catalyst-free carbohydroxylations and carboetherifications have been achieved at room temperature through the combination of high aryl diazonium concentration and visible light irradiation. The weak charge transfer interactions between diazonium salt and alkene significantly influence the reaction course, offering potential for aryldiazonium-based radical arylations without the need for a photocatalyst or particular additive.
Metal and catalyst-free carbohydroxylations and carboetherifications at room temperature have been achieved by a combination of beneficial factors including high aryl diazonium concentration and visible light irradiation. The acceleration of the reaction by visible light irradiation is particularly remarkable against the background that neither the aryldiazonium salt nor the alkene show absorptions in the respective range of wavelength. These observations point to weak charge transfer interactions between diazonium salt and alkene, which are nevertheless able to considerably influence the reaction course. As highly promising perspective, many more aryldiazonium-based radical arylations might benefit from simple light irradiation without requiring a photocatalyst or particular additive.
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