Recent Developments with Organogermanes: their Preparation and Application in Synthesis and Catalysis DOI Creative Commons
Tatiana Rogova,

Eric Ahrweiler,

Markus D. Schoetz

et al.

Angewandte Chemie, Journal Year: 2023, Volume and Issue: 136(8)

Published: Oct. 30, 2023

Abstract Within the sphere of traditional Pd 0 /Pd II cross coupling reactions, organogermanes have been historically outperformed both in terms scope and reactivity by more conventional transmetalating reagents. Subsequently, this class compounds has largely underutilized as a partner bond‐forming strategies. Most recent studies, however, shown that alternative modes activation these notoriously robust building blocks transform into most reactive site molecule—capable outcompeting other functional groups (such boronic acids, esters silanes) for C−C C–heteroatom bond formation. As result, over past few years, literature increasingly featured methodologies explore potential chemoselective orthogonal partners. Herein we highlight some advances field organogermane chemistry with respect to their synthesis applications synthetic catalytic transformations.

Language: Английский

Recent Developments with Organogermanes: their Preparation and Application in Synthesis and Catalysis DOI Creative Commons
Tatiana Rogova,

Eric Ahrweiler,

Markus D. Schoetz

et al.

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 63(8)

Published: Oct. 30, 2023

Within the sphere of traditional Pd

Language: Английский

Citations

24

Visible‐Light‐Driven Germyl Radical Generation via EDA‐Catalyzed ET–HAT Process DOI Creative Commons

Kaito Yoshizawa,

Bi‐Xiao Li, Taro Matsuyama

et al.

Chemistry - A European Journal, Journal Year: 2024, Volume and Issue: 30(41)

Published: May 8, 2024

Abstract We have established a facile and efficient protocol for the generation of germyl radicals by employing photo‐excited electron transfer (ET) in an donor‐acceptor (EDA) complex to drive hydrogen‐atom (HAT) from hydride (R 3 GeH). Using catalytic amount EDA commercially available thiol benzophenone derivatives, ET‐HAT cycle smoothly proceeds simply upon blue‐light irradiation without any transition metal or photocatalyst. This also affords silyl radical hydride.

Language: Английский

Citations

4

Redox-Neutral Photocatalytic Germylative Difunctionalization of Unactivated Olefins via Selective Radical Capture by Ge(II) DOI
Wenjing Zhou, Zequn Yang, Bin Xiao

et al.

ACS Catalysis, Journal Year: 2025, Volume and Issue: 15(3), P. 2150 - 2157

Published: Jan. 22, 2025

This study reports the development of a photocatalytic germanyl functionalization unactivated olefins. A modular approach to alkylgermanium trihalides was realized through three-component radical reaction involving fluoroalkyl bromides and commercially available GeBr2 in redox-neutral process. The target organogermanes were readily obtained via one-pot derivatization using various Grignard reagents, demonstrating good functional group compatibility with amides, esters ketones. work highlights utility Ge(II) reagents constructing C–Ge bonds photoredox catalysis. Notably, selectivity capturing electrophilic or nucleophilic radicals by found be significantly influenced halide ligands on GeX2.

Language: Английский

Citations

0

Photocatalytic Germylation via Direct Hydrogen Atom Transfer DOI

Wenshan Wang,

Yan Liu,

Qiang Gao

et al.

Chinese Journal of Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 18, 2025

Comprehensive Summary An innovative visible‐light‐driven direct hydrogen atom transfer ( d ‐HAT) of Ge–H bond has been developed, wherein the photoexcited 9,10‐phenanthraquinone PC HAT 9 ) serves as an efficient photocatalyst for generation germanium‐centered radicals from germanium hydrides including Ph 3 GeH, n Bu and 2 GeH . By employing hypervalent iodine reagents SOMOphiles, this protocol facilitates streamlined germylation through a mechanism involving germyl radical addition followed by β‐cleavage carboxyl to yield diverse array ethynyl‐, vinyl‐, nitrile‐, phenyl‐functionalized germanes. The methodological leap signifies noteworthy departure previous photocatalytic indirect i relying on combined usage SET with abstractors, which not only advances methodology creating in fashion but also provides access structurally novel pharmaceutically promising organogermanium compounds that are difficult synthesize routine methods.

Language: Английский

Citations

0

Site‐Isolated Rhodium(II) Metalloradicals Catalyze Olefin Hydrofunctionalization DOI Creative Commons
Zihang Qiu, Hao Deng, Constanze N. Neumann

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(18)

Published: Feb. 7, 2024

Abstract Rh(II) porphyrin complexes display pronounced metal‐centered radical character and the ability to activate small molecules under mild conditions, but catalysis with porphyrins is extremely rare. In addition facile dimerization, readily engage in kinetically thermodynamically reactions involving two centers generate stable Rh(III)−X intermediates that obstruct turnover thermal catalysis. Here we report site isolation of metalloradicals a MOF host, which not only protects against also allows them participate Access PCN‐224 or PCN‐222 linkers are fully metalated by absence any accompanying Rh(0) nanoparticles was achieved via first direct synthesis linker containing transition‐metal alkyl moiety, followed Rh(III)−C bond photolysis.

Language: Английский

Citations

3

Photoredox Synthesis of Silicon-Containing Isoindolin-1-ones and Deuterated Analogues Through Hydrosilylation and Deuterium-silylation DOI
Guoqin Wang, Yue Zhang,

Yuan‐Xia Zhou

et al.

The Journal of Organic Chemistry, Journal Year: 2024, Volume and Issue: 89(11), P. 7899 - 7912

Published: May 10, 2024

An efficient, practical, and metal-free protocol for the synthesis of silicon-containing isoindolin-1-ones deuterated analogues via synergistic combination an organic photoredox hydrogen atom transfer process is described. This strategy features mild reaction conditions, high economy, excellent functional group compatibility, delivering a myriad structurally diverse valuable products with good to yields.

Language: Английский

Citations

3

Update Hydrometallation Group 4 (Si, Ge and Sn) DOI

Terence J. Wiesner,

Michael Haas

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Language: Английский

Citations

3

Design of Organic Radical Cations as Potent Hydrogen‐Atom Transfer Catalysts for C−H Functionalization DOI
Akira Matsumoto, Keiji Maruoka

Asian Journal of Organic Chemistry, Journal Year: 2023, Volume and Issue: 13(4)

Published: Dec. 23, 2023

Abstract Hydrogen‐atom transfer (HAT) catalysis offers an atom‐ and step‐economical approach to the direct functionalization of aliphatic C−H bonds. While structure HAT catalysts largely affects reactivity selectivity in step where bond is cleaved, choice viable for from strong bonds limited. The recent development organic based on flexibly modifiable molecular platform has enabled fine‐tuning steric electronic properties these catalysts, thus greatly expanding their structural diversity. This review focuses design with cationic moieties as common motifs application selective manipulation challenging substrates, including unactivated hydrocarbons.

Language: Английский

Citations

8

Organophotocatalytic Regioselective Silylation/Germylation and Cascade Cyclization of N-Alkenyl α-CF3 Acrylamides: Access to Densely Functionalized 4-Pyrrolin-2-ones DOI

Kalu Ram Bajya,

Shivam Maurya, Sermadurai Selvakumar

et al.

Organic Letters, Journal Year: 2024, Volume and Issue: 26(43), P. 9269 - 9275

Published: Oct. 21, 2024

We report an organophotoredox-catalyzed silylation/germylation cascade cyclization of

Language: Английский

Citations

2

Light‐Promoted Germylation of Aryl Propiolamides/Alkynoates: Synthesis of Ge‐Containing Spiro[4.5]trienones and Vinylgermanes DOI

Yani Luo,

Leiyang Lv, Zhiping Li

et al.

ChemCatChem, Journal Year: 2023, Volume and Issue: 15(13)

Published: May 11, 2023

Abstract The light‐promoted regioselective germylation of aryl propiolamides/alkynoates with germanium hydrides is reported. germyl‐containing spiro[4.5]trienones were obtained when N ‐arylpropiolamides used via sequential C−Ge and C−C bond formation, while alkynoates delivered the vinylgermanes radical Smiles rearrangement CO 2 release.

Language: Английский

Citations

6