Recent advances in titanium radical redox catalysis

T McCallum, X Wu, S Lin - The Journal of Organic Chemistry, 2019 - ACS Publications
New catalytic strategies that leverage single-electron redox events have provided chemists
with useful tools for solving synthetic problems. In this context, Ti offers opportunities that are …

[HTML][HTML] Titanium redox catalysis: insights and applications of an earth-abundant base metal

ZW Davis-Gilbert, IA Tonks - Dalton Transactions, 2017 - pubs.rsc.org
Titanium redox catalysis: insights and applications of an earth-abundant base metal - Dalton
Transactions (RSC Publishing) DOI:10.1039/C7DT02319G Royal Society of Chemistry View …

Merging Catalysis in Single Electron Steps with Photoredox Catalysis—Efficient and Sustainable Radical Chemistry

Z Zhang, RB Richrath, A Gansäuer - ACS Catalysis, 2019 - ACS Publications
We describe a combination of catalysts that allows the coupling of titanocene (III) catalysis
with photoredox catalysis. Oxidation of radical intermediates by a photoredox catalyst opens …

Emergence of a novel catalytic radical reaction: titanocene-catalyzed reductive opening of epoxides

A Gansaeuer, H Bluhm, M Pierobon - Journal of the American …, 1998 - ACS Publications
The preparatively important catalytic opening of epoxides to β-titanoxy radicals via single-
electron transfer (SET) is described. These radicals can be reduced to alcohols or …

Umpolung of Hemiaminals: Titanocene‐Catalyzed Dehydroxylative Radical Coupling Reactions with Activated Alkenes

X Zheng, XJ Dai, HQ Yuan, CX Ye, J Ma… - Angewandte …, 2013 - Wiley Online Library
Bis (cyclopentadienyl) titanium (III) chloride(Nugent s reagent)[1] is an efficient single-
electron reductant and has been used as a versatile tool in organic synthesis,[2, 3] owing to …

Bimetallic radical redox-relay catalysis for the isomerization of epoxides to allylic alcohols

KY Ye, T McCallum, S Lin - Journal of the American Chemical …, 2019 - ACS Publications
Organic radicals are generally short-lived intermediates with exceptionally high reactivity.
Strategically, achieving synthetically useful transformations mediated by organic radicals …

Catalytic, Highly Regio‐and Chemoselective Generation of Radicals from Epoxides: Titanocene Dichloride as an Electron Transfer Catalyst in Transition Metal …

A Gansäuer, M Pierobon… - Angewandte Chemie …, 1998 - Wiley Online Library
COMMUNICATIONS Page 1 COMMUNICATIONS Angew. Chem. Int. Ed. 1998, 37, No. 1/2
WILEY-VCH Verlag GmbH, D-69451 Weinheim, 1998 1433-7851/98/3701-0101 $ 17.50+.50/0 …

Radicals in Transition Metal Catalyzed Reactions? Transition Metal Catalyzed Radical Reactions?–A Fruitful Interplay Anyway: Part 2. Radical Catalysis by Group 8 …

U Jahn - Radicals in Synthesis III, 2012 - Springer
This review summarizes the current status of transition metal catalyzed reactions involving
radical intermediates in organic chemistry. This part focuses on radical-based methods …

Ti-catalyzed radical alkylation of secondary and tertiary alkyl chlorides using Michael acceptors

X Wu, W Hao, KY Ye, B Jiang, G Pombar… - Journal of the …, 2018 - ACS Publications
Alkyl chlorides are common functional groups in synthetic organic chemistry. However, the
engagement of unactivated alkyl chlorides, especially tertiary alkyl chlorides, in transition …

Mechanistic Study of the Titanocene (III)‐Catalyzed Radical Arylation of Epoxides

A Gansäuer, D von Laufenberg, C Kube… - … A European Journal, 2015 - Wiley Online Library
An atom‐economical and catalytic arylation of epoxide‐derived radicals is described. The
key step of the catalytic system is a sequential electron and proton transfer for the …