Cyclopentadienyl capped thorium(iv) porphyrinoid complex DOI
Daniel N. Mangel, James T. Brewster, Gabriel J. Juarez

et al.

Chemical Communications, Journal Year: 2023, Volume and Issue: 60(8), P. 1020 - 1022

Published: Dec. 22, 2023

The reaction between Th( iv ) dipyriamethyrin dichloride and sodium cyclopentadienyl (Cp) results in the formation of a capped thorium complex.

Language: Английский

Phosphonium‐substituted Diphosphaindenylide (PPI): Exploration of Biradical Character and Ligand Properties DOI Creative Commons
Peter Coburger,

David Zuber,

Clara Schweinzer

et al.

Chemistry - A European Journal, Journal Year: 2023, Volume and Issue: 30(7)

Published: Nov. 30, 2023

Starting from C

Language: Английский

Citations

1
Synthesis of phosphine‐tethered indenyl ruthenium complexes through c‐h bonds activation followed by C‐C bond coupling: High performance catalysts for the redox isomerization of allylic alcohols DOI
Danfeng Deng, Chongwei Chen, Shuo Dong

et al.

Applied Organometallic Chemistry, Journal Year: 2024, Volume and Issue: 38(5)

Published: March 4, 2024

Reactions of 3‐(2‐pyridyl)indene and 5‐methyl‐3‐(2‐pyridyl)indene with Ru(PPh 3 ) Cl 2 , generated two phosphine‐tethered indenyl ruthenium complexes { η 5 κ 1 P ‐(C H 4 N‐C 9 R‐C 6 PPh )}RuCl(PPh (R = H, ; R CH ), respectively. While treatment 3‐(6‐methyl‐2‐pyridyl)indene gave a product ‐(CH C ( ); could further react NaBAr F to produce cationic complex [{ ‐C )}Ru(PPh )][BAr ] 15 ). When treated NaOMe in methanol, was converted into )}RuH(PPh )] 16 These five were investigated as catalysts for redox isomerization allylic alcohols, exhibited best catalytic activity the presence t BuOK, reaching quantitative yield min when α‐vinylbenzyl alcohol used substrate, requiring catalyst loading mol%.

Language: Английский

Citations

0
Photoinduced Group Transposition via Iridium‐Nitrenoid Leading to Amidative Inner‐Sphere Aryl Migration DOI
Hoimin Jung, Jungkweon Choi, Daniel Kim

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(36)

Published: June 14, 2024

Abstract We herein report a fundamental mechanistic investigation into photochemical metal‐nitrenoid generation and inner‐sphere transposition reactivity using organometallic photoprecursors. By designing Cp*Ir(hydroxamate)(Ar) complexes, we induced photo‐initiated ligand activation, allowing us to explore the amidative σ(Ir–aryl) migration reactivity. A combination of experimental studies, femtosecond transient absorption spectroscopy, density functional theory (DFT) calculations revealed that metal‐to‐ligand charge transfer enables σ(N−O) cleavage, followed by Ir‐acylnitrenoid generation. The final group results in net transposition.

Language: Английский

Citations

0
Stereocontrolled Synthesis of Chiral Helicene‐Indenido ansa‐ and Half‐Sandwich Metal Complexes and Their Use in Catalysis DOI Creative Commons
Ivo Starý, Tereza Edlová, Jiří Rybáček

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 137(1)

Published: Sept. 26, 2024

Abstract Despite recent tremendous progress in the synthesis of nonplanar chiral aromatics, and helicenes particular, their conversion to half‐sandwich or sandwich transition metal complexes still lags behind, although they represent an attractive family modular underexplored architectures with a potential catalytic use. In this work, starting from various helicene‐indene proligands, we prepared enantio‐ diastereopure oxa[6]‐ oxa[7]helicene‐indenido Rh I III oxa[7]helicene‐bisindenido ansa ‐metallocene Fe II complex. To document use, oxahelicene‐indenido were employed as catalysts enantioselective C−H arylation benzo[ h ]quinolines 1‐diazonaphthoquinones afford series axially biaryls mostly good high yields up 96 : 4 er . Thus, developed stereocontrolled helicene‐indenido ‐ complexes, successfully demonstrated first use such helicene Cp‐related catalysis, described unusual sequence efficient central‐to‐helical‐to‐planar‐to‐axial chirality transfer.

Language: Английский

Citations

0
Stereocontrolled Synthesis of Chiral Helicene‐Indenido ansa‐ and Half‐Sandwich Metal Complexes and Their Use in Catalysis DOI Creative Commons
Ivo Starý, Tereza Edlová, Jiří Rybáček

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 64(1)

Published: Sept. 26, 2024

Abstract Despite recent tremendous progress in the synthesis of nonplanar chiral aromatics, and helicenes particular, their conversion to half‐sandwich or sandwich transition metal complexes still lags behind, although they represent an attractive family modular underexplored architectures with a potential catalytic use. In this work, starting from various helicene‐indene proligands, we prepared enantio‐ diastereopure oxa[6]‐ oxa[7]helicene‐indenido Rh I III oxa[7]helicene‐bisindenido ansa ‐metallocene Fe II complex. To document use, oxahelicene‐indenido were employed as catalysts enantioselective C−H arylation benzo[ h ]quinolines 1‐diazonaphthoquinones afford series axially biaryls mostly good high yields up 96 : 4 er . Thus, developed stereocontrolled helicene‐indenido ‐ complexes, successfully demonstrated first use such helicene Cp‐related catalysis, described unusual sequence efficient central‐to‐helical‐to‐planar‐to‐axial chirality transfer.

Language: Английский

Citations

0
Available strategies for the synthesis of indenes for metal complex catalysis DOI
Vladimir B. Kharitonov, Dmitry A. Loginov

Russian Chemical Bulletin, Journal Year: 2024, Volume and Issue: 73(10), P. 2787 - 2800

Published: Oct. 1, 2024

Language: Английский

Citations

0
Benz[e]indenyl and benz[f]indenyl molybdenum compounds: evidence of the η3-coordination mode DOI Creative Commons
Jiří Štěpán, Jaromı́r Vinklárek, Ivana Cı́sařová

et al.

New Journal of Chemistry, Journal Year: 2023, Volume and Issue: 47(46), P. 21396 - 21403

Published: Jan. 1, 2023

The capability of benz[ e ]indenyl and f ligands to undergo η 5 -to-η 3 haptotropic rearrangement was evidenced on new molybdenum compounds.

Language: Английский

Citations

0
Cyclopentadienyl capped thorium(iv) porphyrinoid complex DOI
Daniel N. Mangel, James T. Brewster, Gabriel J. Juarez

et al.

Chemical Communications, Journal Year: 2023, Volume and Issue: 60(8), P. 1020 - 1022

Published: Dec. 22, 2023

The reaction between Th( iv ) dipyriamethyrin dichloride and sodium cyclopentadienyl (Cp) results in the formation of a capped thorium complex.

Language: Английский

Citations

0