Titanocenes as Photoredox Catalysts Using Green‐Light Irradiation

Irradiation of Cp2TiCl2 with green light leads to electronically excited [Cp2TiCl2]*. This complex constitutes an efficient photoredox catalyst for the reduction of epoxides and for 5‐exo cyclizations of suitably unsaturated epoxides. To the best of our knowledge, our system is the first example of...

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Published inAngewandte Chemie International Edition Vol. 59; no. 24; pp. 9355 - 9359
Main Authors Zhang, Zhenhua, Hilche, Tobias, Slak, Daniel, Rietdijk, Niels R., Oloyede, Ugochinyere N., Flowers, Robert A., Gansäuer, Andreas
Format Journal Article
LanguageEnglish
Published Germany Wiley Subscription Services, Inc 08.06.2020
John Wiley and Sons Inc
EditionInternational ed. in English
Subjects
catalysis
Catalysts
Communication
Communications
Epoxides
Irradiation
light
Light irradiation
Photoredox catalysis
Radiation
radicals
Titanium
titanocenes
catalysis
titanocenes
epoxides
radicals
light
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Summary:Irradiation of Cp2TiCl2 with green light leads to electronically excited [Cp2TiCl2]*. This complex constitutes an efficient photoredox catalyst for the reduction of epoxides and for 5‐exo cyclizations of suitably unsaturated epoxides. To the best of our knowledge, our system is the first example of a molecular titanium photoredox catalyst. Green light! For the first time, a titanium complex, Cp2TiCl2, is used in photoredox catalysis. Irradiation with green light enables an efficient catalytic radical chemistry with epoxides under very mild conditions and with reagent control.
Bibliography:In memory of Professor Kilian Muñiz
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1433-7851
1521-3773
1521-3773
DOI:10.1002/anie.202001508