Results 21 to 30 of about 35,108 (280)

N-Heterocyclic Carbene Coinage Metal Complexes Containing Naphthalimide Chromophore: Design, Structure, and Photophysical Properties

Inorganics, 2017
A series of novel N-heterocyclic carbene coinage metal complexes containing a naphthalimide (NI) chromophore has been prepared and fully characterized. Two types of molecules are described those where the NI unit is directly attached to the carbene unit ...
Pierre-Henri Lanoë, Btissam Najjari, Florine Hallez, Geoffrey Gontard, Hani Amouri   +4 more
doaj   +1 more source

Carbene Transfer Reactions Catalysed by Dyes of the Metalloporphyrin Group

Molecules, 2018
Carbene transfer reactions are very important transformations in organic synthesis, allowing the generation of structurally challenging products by catalysed cyclopropanation, cyclopropenation, carbene C-H, N-H, O-H, S-H, and Si-H insertion, and ...
Mário M. Q. Simões, Daniel T. G. Gonzaga, Mariana F. C. Cardoso, Luana da S. M. Forezi, Ana T. P. C. Gomes, Fernando de C. da Silva, Vítor F. Ferreira, Maria G. P. M. S. Neves, José A. S. Cavaleiro   +8 more
doaj   +1 more source

Insights into the Activation Mode of α‐Carbonyl Sulfoxonium Ylides in Rhodium‐Catalyzed C−H Activation: A Theoretical Study

ChemistryOpen, 2022
A computational study has been performed to investigate the mechanism of RhIII‐catalyzed C−H bond activation using sulfoxonium ylides as a carbene precursor. The stepwise and concerted activation modes for sulfoxonium ylides were investigated.
Dianmin Zhang, Xiaofang He, Tao Yang, Dr. Song Liu   +3 more
doaj   +1 more source

Carbene Routes to Cyclopropatetrahedrane

The Journal of Organic Chemistry, 2022
The formation of cyclopropatetrahedrane (tetracyclo[2.1.0.01,3.02,4]pentane) via four different carbene reactions is computed using the (U)CCSD(T)(full)/cc-pVTZ//(U)ωB97X-D/cc-pVTZ + 1.3686(EZPVE) theoretical model. Intrinsic reaction coordinate plots confirm that each carbene is directly linked to cyclopropatetrahedrane via a unique cyclopropanation ...
Rosenberg, Murray G., Brinker, Udo H.
openaire   +3 more sources

The Synthesis of Some Perhydrobenzimidazolinium Salts and Their Application in Pd-Carbene Catalyzed Heck and Suzuki Reactions

Molecules, 2009
Novel 1,3-dialkylperhydrobenzimidazolinium chloride salts were prepared as precursors of N-heterocyclic carbenes 3a-e by reacting N,N’-dialkylcyclohexandiamine, triethyl orthoformate and ammonium chloride.
Murat Yiğit
doaj   +1 more source

Covalent Organic Frameworks for Photocatalysis

Advanced Materials, EarlyView.
This review provides an overview of recent advances in covalent organic frameworks (COFs) for photocatalysis, focusing on sustainable energy applications like water splitting, hydrogen peroxide generation, and CO2 and N2 reduction. It discusses design principles, structure‐function relationships, challenges in COF photocatalysis, and strategies to ...
Bikash Mishra, Akhtar Alam, Avanti Chakraborty, Bidhan Kumbhakar, Samrat Ghosh, Pradip Pachfule, Arne Thomas   +6 more
wiley   +1 more source

Difluoromethanesulfonyl hypervalent iodonium ylides for electrophilic difluoromethylthiolation reactions under copper catalysis [PDF]

Royal Society Open Science, 2016
Difluoromethanesulfonyl hypervalent iodonium ylides 2 were developed as electrophilic difluoromethylthiolation reagents for a wide range of nucleophiles.
Sadayuki Arimori, Okiya Matsubara, Masahiro Takada, Motoo Shiro, Norio Shibata   +4 more
doaj   +1 more source

Poly(imidazolyliden-yl)borato Complexes of Tungsten: Mapping Steric vs. Electronic Features of Facially Coordinating Ligands

Molecules, 2023
A convenient synthesis of [HB(HImMe)3](PF6)2 (ImMe = N-methylimidazolyl) is decribed. This salt serves in situ as a precursor to the tris(imidazolylidenyl)borate Li[HB(ImMe)3] pro-ligand upon deprotonation with nBuLi.
Callum M. Inglis, Richard A. Manzano, Ryan M. Kirk, Manab Sharma, Madeleine D. Stewart, Lachlan J. Watson, Anthony F. Hill   +6 more
doaj   +1 more source

Studies on the Carbenes. [PDF]

Journal of Industrial & Engineering Chemistry, 1910
n ...
openaire   +3 more sources

Recent Advances in Heterogeneous Frustrated Lewis Pair: Synthesis, Characterization, and Catalysis

Advanced Materials, EarlyView.
This review provides a concise analysis of heterogeneous frustrated Lewis pair (FLP) chemistry, focusing on their synthesis, characterization, and application in small‐molecule activation. It highlights current challenges in developing solid FLP systems and explores promising advancements through emerging technologies, offering critical insights into ...
Jiasi Li, Shik Chi Edman Tsang, Guangchao Li   +2 more
wiley   +1 more source