Photochemical Organocatalytic Borylation of Alkyl Chlorides, Bromides, and Sulfonates
Reported herein is a photochemical strategy for the borylation of alkyl halides using bis(catecholato)diboron as the boron source. This method exploits the ability of a nucleophilic dithiocarbonyl anion organocatalyst to generate radicals via an SN2-based photochemical catalytic mechanism, which is...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2019 |
| País: | España |
| Institución: | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| Repositorio: | Recercat. Dipósit de la Recerca de Catalunya |
| OAI Identifier: | oai:recercat.cat:2072/358618 |
| Acceso en línea: | http://hdl.handle.net/2072/358618 https://doi.org/10.1021/acscatal.9b01482 |
| Access Level: | acceso abierto |
| Palabra clave: | 54 |
| Sumario: | Reported herein is a photochemical strategy for the borylation of alkyl halides using bis(catecholato)diboron as the boron source. This method exploits the ability of a nucleophilic dithiocarbonyl anion organocatalyst to generate radicals via an SN2-based photochemical catalytic mechanism, which is not reliant on the redox properties of the substrates. Therefore, it grants access to alkyl boronic esters from readily available but difficult-to-reduce electrophiles, including benzylic and allylic chlorides, bromides, and mesylates, which were inert to or unsuitable for previously reported metal-free borylation protocols. |
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