Results 111 to 120 of about 13,631,199 (274)

N‐Heterocyclic Carbene Analogues of Wittig Hydrocarbon

Chemistry – A European Journal
AbstractN‐Heterocyclic carbene (NHC) analogues of Wittig hydrocarbon, [(NHC)(Stil)(NHC)] (3a‐c) (NHC = SIPr (1a) = C[N(Dipp)CH2]2, Dipp = 2,6‐iPr2C6H3; IPr (1b) = C[N(Dipp)CH]2; Me‐IPr (1c) = C[N(Dipp)CMe]2 and Stil = C6H4CHCHC6H4) have been reported as crystalline solids.
Henric Steffenfauseweh, Yury V. Vishnevskiy, Beate Neumann, Hans‐Georg Stammler, Bas de Bruin, Rajendra S. Ghadwal   +5 more
openaire   +4 more sources

Migratory insertion in N-heterocyclic carbene complexes of palladium; an experimental and DFT study

, 2003
The first authenticated example of migration of a methyl group from palladium(II) to a coordinated N-heterocyclic carbene is ...
Green, JC, Jennifer C Green (16061285), Green, Jennifer, Green, J.C., Andreas A Danopoulos (16289159), Hursthouse, MB, Michael B Hursthouse (10830813), Tsoureas, N., Danopoulos, A.A., Danopoulos, AA, Nikolaos Tsoureas (4462867), Hursthouse, M.B., Tsoureas, N   +12 more
core   +1 more source

Synthesis of an N‑Heterocyclic-Carbene-Stabilized Siladiimide

, 2016
The reaction of the N-heterocyclic-carbene-stabilized disilicon(0) complex [IPr→SiSi←IPr] (1; IPr = :C­{N­(Ar)­CH}2 and Ar = 2,6-iPr2C6H3) with ArN3 afforded the N-heterocyclic-carbene-stabilized siladiimide [ArNSi­(IPr)­NAr] (2).
Celestine Seow (1446541), Cheuk-Wai So (1446544), Rakesh Ganguly (671208), Wai-Leung Yim (1446538), Yongxin Li (471129)   +4 more
core   +1 more source

New Approaches to N‑Heterocyclic-Carbene-Coordinated Iminoborane and Borenium Species

, 2020
The synthesis, characterization, and reactivity of an iminoborane–N-heterocyclic carbene (NHC) adduct were described. The reaction of DmpNHB­(OEt)­Br [1; Dmp = 2,6-bis­(2,4,6-trimethylphenyl)­phenyl] with 2 equiv of 1,3-diimethyl-4,5-dimethylimidazol-2 ...
Chunming Cui (1446892), Ping Cui (249198), Lingbing Kong (2249812), Rui Guo (134395)   +3 more
core   +1 more source

Silver N-heterocyclic carbenes

, 2011
Silver(I) NHC complexes are widely interested class of compounds due to their transmetallation and medicinel abilities. In contrast to other metalles, silver(I) NHCs are stable toward oxygen and moisture of the air.In this dissertation our main aim is to synthesis new kinds of silver(I) NHCs and to test them for their catalytic abilities.
openaire   +2 more sources

Bismuth‐Based Semiconductors in Photocatalytic CO2 Reduction: Catalysts, Progress, and Future Perspectives

Carbon and Hydrogen, EarlyView.
This review systematically summarizes research progress on bismuth‐based semiconductor photocatalytic materials in the field of CO2 reduction. It focuses on elucidating the mechanisms by which four modification strategies—including heteroatom doping, oxygen vacancy engineering, microstructural control, and heterostructure fabrication—regulate band ...
Shuisen He, Guodong Zhang, Mengchi Guo, Song Zhong, Jie Yang, Tongrui Zhang, Xingye Zeng   +6 more
wiley   +1 more source

Photosensitizing Au(I) Catalysis With Coumarins

Chemistry – A European Journal, EarlyView.
A Au(I) complex with a tethered coumarin fragment was synthesized and characterized by UV‐vis and emission spectroscopy. Its ability to facilitate photo‐driven cross‐coupling reactions through single‐electron and energy transfer events was evaluated. ABSTRACT Gold catalysis shows versatility in a wide range of challenging transformations, wherein light‐
Liliana Capulín Flores, Jacob J. van der Wal, Johannes E. M. N. Klein   +2 more
wiley   +1 more source

Copper N-heterocyclic carbene (NHC) complexes as carbene transfer reagents

, 2010
A method is described that makes use of easily prepared, inexpensive copper synthons as N-heterocyclic carbene (NHC) transfer agents to generate catalytically relevant gold and palladium ...
Cazin, Catherine, Marc R. L. Furst, Cazin, Catherine S.J., Furst, Marc RL, Catherine S. J. Cazin, Furst, Marc Robert Laurent   +5 more
core   +1 more source

Chiral Pyrazolinylidene Complexes for Asymmetric Catalysis

Chemistry – A European Journal, EarlyView.
The synthesis and application of pyrazolin‐5‐ylidene NHC chiral‐at‐ruthenium catalysts is reported. The strong donating pyrazolin‐5‐ylidene ligands led to highly electron rich ruthenium complexes, which showed excellent catalytic activity and enantioselectivity in the intramolecular aziridination of an alkene.
Felix Möller, Nemrud Demirel, Thomas Krüger, Linus Plohnke, Jennifer Schröder, Sergei I. Ivlev, Eric Meggers   +6 more
wiley   +1 more source

Alkene Diversification through a Molecular Recasting Strategy Enabled by N-Heterocyclic Carbene and Photoredox Dual Catalysis

Research
Alkenes are fundamental structural motifs in organic synthesis, valued for their prevalence in natural products and their broad reactivity profile. While traditional de novo synthesis offers access to diverse alkene frameworks, strategies enabling the ...
Qing-Zhu Li, Mei-Hao He, Peng-Tao Wang, Dong-Yang Xiang, Long-Hai Hong, Rong Zeng, Jun-Long Li   +6 more
doaj   +1 more source