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Photoredox Propargylation of Aldehydes Catalytic in Titanium.

ABSTRACT: A practical and effective photoredox propargylation of aldehydes promoted by 10 mol % of [Cp₂TiCl₂] 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.

SUBMITTER: Calogero F

PROVIDER: S-EPMC8279488 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature

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Photoredox Propargylation of Aldehydes Catalytic in Titanium.

Calogero Francesco F Gualandi Andrea A Matteo Marco Di MD Potenti Simone S Fermi Andrea A Bergamini Giacomo G Cozzi Pier Giorgio PG

The Journal of organic chemistry 20210422 9

A practical and effective photoredox propargylation of aldehydes promoted by 10 mol % of [Cp<sub>2</sub>TiCl<sub>2</sub>] 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 subs ...[more]

PMID: 33884879

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