Photoredox Propargylation of Aldehydes Catalytic in Titanium

[Image: see text] A practical and effective photoredox propargylation of aldehydes promoted by 10 mol % of [Cp(2)TiCl(2)] is presented. No stoichiometric metals or scavengers are used for the process. A catalytic amount of the cheap and simply prepared organic dye 3DPAFIPN is used as the reductant f...

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Detalles Bibliográficos
Autores principales: Calogero, Francesco, Gualandi, Andrea, Matteo, Marco Di, Potenti, Simone, Fermi, Andrea, Bergamini, Giacomo, Cozzi, Pier Giorgio
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2021
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8279488/
https://www.ncbi.nlm.nih.gov/pubmed/33884879
http://dx.doi.org/10.1021/acs.joc.1c00521
Descripción
Sumario:[Image: see text] A practical and effective photoredox propargylation of aldehydes promoted by 10 mol % of [Cp(2)TiCl(2)] is presented. No stoichiometric metals or scavengers are used for the process. A catalytic amount of the cheap and simply prepared organic dye 3DPAFIPN is used as the reductant for titanium. The reaction displayed a broad scope, and no traces of allenyl isomers were detected for simple propargyl bromide, whereas mixtures of propargyl and allenyl isomers were observed for substituted propargyl bromides.

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