Results 51 to 60 of about 35,108 (280)

Zwitterionic Heavier Pnictinidenes in Redox Catalysis

Angewandte Chemie, EarlyView.
Zwitterionic pnictinidenes: A new class of zwitterionic heavier pnictogen species stabilized by bis(N‐heterocyclic carbene)borate ligands is reported, enabling the isolation of Sb and Bi in multiple oxidation states. These thoroughly characterized systems exhibit cationic character and engage in redox catalysis, facilitating catalytic ...
Selwin Fernando, Yi Chen Chan, Sergio Fernandez, Enric Sabater, Graham Tizzard, Simon J. Coles, Diego M. Andrada, Oriol Planas   +7 more
wiley   +2 more sources

Crystal structure of (η4-cyclooctadiene)(3,3′-dimesityl-1,1′-methylenediimidazoline-2,2′-diylidene)nickel(0) tetrahydrofuran monosolvate

Acta Crystallographica Section E: Crystallographic Communications, 2018
The crystal structure of the title compound, [Ni(C25H28N4)(C8H12)]·C4H8O or (MesNHC2Me)Ni(COD), which contains a bidentate N-heterocyclic carbene (NHC) ligand with mesityl aryl groups is reported.
Carlos D. Yamamoto, Zijie Zhang, Sabine Chantal E. Stieber   +2 more
doaj   +1 more source

Palladium‐Catalyzed Gem‐Diborylalkylation of Silyl Enol Ethers and N‐Vinylacetamide via Diboryl Carbon‐Centered Radicals

Advanced Science, EarlyView.
Unlocking new reactivity: a palladium‐catalyzed coupling of gem‐iododiborylalkanes with electron‐rich olefins enables streamlined access to β,β‐diboryl carbonyl compounds under mild conditions. Mechanistic insights reveal a Pd(0)/Pd(I) cycle and a diboryl‐stabilized radical intermediate, offering a distinct platform for advancing unconventional ...
Xiao‐Yu Xie, Yi Wei, Xin‐Yi Chen, Ming Li, Kai Hong   +4 more
wiley   +1 more source

In‐Situ Functional Crosslinking Enables Facile Construction of Rigid Poly(Ethylene Oxide) Network for High Performance All‐Solid‐State Batteries

Aggregate, EarlyView.
An in situ functional crosslinking has been newly developed to facilely construct rigid PEO network for high performance all‐solid‐state LMBs, achieving significantly improved ion conductivity and cycling stability compared with the pristine PEO electrolyte.
Liang Shan, Bitian Chen, Yunhan Hu, Xiangqin Gan, Han Si, Yongqi Wang, Zhaojun Chen, Yiyong Zhang, Yinbo Zhou, Liming Ding, Junqiao Ding   +10 more
wiley   +1 more source

Redox‐ and NIR‐Active Iron(III) Triradicals as Catalysts for Radical Polymerization of Acrylamides and Methacrylates

Angewandte Chemie, EarlyView.
A redox‐active low‐spin Fe(III)‐triradical complex was isolated in good yield and utilized as a catalyst for radical polymerization of acrylamides and methacrylates at ambient conditions. Abstract Two unprecedented redox‐active, low‐spin Fe(III)‐triradical complexes, [Fe(III)(SS‐NHC═S•−)3]·NHC═S (1·NHC═S; E═S) and [Fe(III)(SS‐NHC═Se•−)3] (2; E═Se) have
Sujit Das, Amul Jain, Subuhan Ahamed, Bhanendra Sahu, Sonam Suthar, Björn Schwarz, Christel Livia Mascarenhas, Sangita Mondal, Saroj Kumar Kushvaha, Sanjib Banerjee, Herbert W. Roesky, Kartik Chandra Mondal   +11 more
wiley   +2 more sources

Dirhodium‐Catalyzed Enantioselective Synthesis of Difluoromethylated Cyclopropanes via Enyne Cycloisomerization

Advanced Science
(Difluoromethylated cyclopropane represents an important motif, which is widely found in bioactive and functional molecules. Despite significant progress in modern chemistry, the atom‐economic and enantioselective synthesis of difluoromethylated ...
Chuntao Wang, Dong Zhu, Rui Wu, Shifa Zhu   +3 more
doaj   +1 more source

Polycondensation of Hexamethylenetetramine in Anhydrous Acid Media as a New Approach to Carbyne-Like Materials and Its Application as Dispersant of Carbon Materials

C, 2019
Aminocumulene (AC), a technical name that results from the hexamethylenetetramine polycondensation in anhydrous sulfuric acid, was successfully performed toward the synthesis of oligomeric cumulenic compounds made up of carbyne-like (=C=C)x fragments as ...
Alyona V. Gerasimova, Olga V. Alekhina, Leticia García-Cruz, Jesús Iniesta, Alexander V. Melezhik, Aleksey G. Tkachev   +5 more
doaj   +1 more source

Gold(I)-catalyzed intramolecular cyclization/intermolecular cycloaddition cascade as a fast track to polycarbocycles and mechanistic insights

Nature Communications, 2021
Metal carbene is usually employed as a 1-carbon synthon or 3-carbon synthon in a variety of cycloaddition reactions. Here, the authors report a gold-catalyzed cascade protocol for the assembly of polycarbocyclic frameworks via a β-aryl gold-carbene ...
Cheng Zhang, Kemiao Hong, Chao Pei, Su Zhou, Wenhao Hu, A. Stephen K. Hashmi, Xinfang Xu   +6 more
doaj   +1 more source

Zwitterionic carbene adducts and their carbene isomers

RSC Advances, 2015
N-heterocyclic carbenes (NHC) and abnormal NHCs (aNHC) form the stable adducts,1and2, with X (CH2, SiH2, NH, PH, O, S), which are excellent nucleophiles at X.
László Nyulászi, Zsolt Kelemen, Rainer Streubel   +2 more
openaire   +2 more sources

Enantiopure Chiral Crystals: A Powerful Tool for Absolute Asymmetric Synthesis

Asian Journal of Organic Chemistry, EarlyView.
This review covers absolute asymmetric syntheses, which allow the preparation of enantiomerically enriched chiral compounds from achiral precursors. By exploiting the crystallization of certain compounds as a conglomerate, enantiopure chiral crystals are spontaneously obtained.
Jiacheng Li, Valérie Alezra
wiley   +1 more source