Results 141 to 150 of about 101,444 (317)

Carbene-Catalyzed Enantioselective Sulfonylation of Enone Aryl Aldehydes: A New Mode of Breslow Intermediate Oxidation [PDF]

, 2022
Rui Deng, Shuquan Wu, Chengli Mou, Jianjian Liu, Pengcheng Zheng, Xinglong Zhang, Yonggui Robin   +6 more
openalex   +1 more source

Synthesis and Investigation of Bonding Scenario in a Bis(silaselenone)

European Journal of Inorganic Chemistry, EarlyView.
Silaselenones, the compounds containing Si=Se bond, are rarely reported in the literature. Silaselenones are the class of compounds that possess Si=Se bond. Herein, we report a bis(silaselenone) and we investigate nature of bonding between Si–Si atoms and Si—Amidinate moieties by employing Natural bond orbital (NBO), Quantum theory of atoms in ...
Saroj Kumar Kushvaha, Harsha S. Karnamkkott, Paula A. M. Stark, Sai Manoj N. V. T. Gorantla, Regine Herbst‐Irmer, Kartik Chandra Mondal, Dietmar Stalke, Herbert W. Roesky   +7 more
wiley   +1 more source

Rhodium(I) Complexes with Hemilabile N-Heterocyclic Carbenes: Efficient Alkyne Hydrosilylation Catalysts

, 2007
M. Victoria Jiménez, Jesús J. Pérez‐Torrente, M.I. Bartolome, V. Gierz, Fernando J. Lahoz, Luis A. Oro   +5 more
openalex   +2 more sources

Chromium-catalyzed stereodivergent E- and Z-selective alkyne hydrogenation controlled by cyclic (alkyl)(amino)carbene ligands [PDF]

, 2023
Liang Ling, Chenyang Hu, Linhong Long, Xue Zhang, Lixing Zhao, Liu Leo Liu, Hui Chen, Meiming Luo, Xiaoming Zeng   +8 more
openalex   +1 more source

Dinuclear Rhodium(I)–N‐Heterocyclic Carbene Complexes as Alkyne Hydropyridonation Catalysts

European Journal of Inorganic Chemistry, EarlyView.
Catalyst Improvement by NHC tuning: A series of new RhI–NHC dinuclear complexes has been revealed as efficient alkyne hydropyridonation catalysts. 333053IMes complex displays the highest reactivity of the series, suggesting that a moderate steric demand combined with balanced σ‐donation facilitates precatalyst activation and substrate exchange.
Belinda Español‐Sánchez, Mert Olgun Karataş, Andrea Di Giuseppe, Ulugbek Togaev, Vincenzo Passarelli, Luis A. Oro, Jesús J. Pérez‐Torrente, Ricardo Castarlenas   +7 more
wiley   +1 more source

Cyclopropenes in Photochemical Reactions. [PDF]

Chemistry
The photochemical side of cyclopropenes. Cyclopropenes are valuable synthetic tools in organic chemistry. In particular, this review focuses on the photochemistry of cyclopropenes. The reactivity of cyclopropenes excited by irradiation is discussed showing their unique potential for organic synthesis.
Suárez-García D, Coto D, Vicente R.
europepmc   +2 more sources

N-alkyl functionalised expanded ring N-heterocyclic carbene complexes of rhodium(i) and iridium(i): structural investigations and preliminary catalytic evaluation

, 2012
Jay J. Dunsford, Dorette S. Tromp, K.J. Cavell, Cornelis J. Elsevier, Benson M. Kariuki   +4 more
openalex   +2 more sources

Rigid Ligand Environments at Beryllium, From Spectroscopic Probes to Small Molecule Activation

European Journal of Inorganic Chemistry, EarlyView.
Due to the high rigidity and definition of beryllium scorpionate complexes, they can be used to study metal‐pseudohalide and ‐carbon bonds in detail. Furthermore, these compounds can be used to activate small molecules and exhibit unprecedented transmetalation reactions. In beryllium scorpionate complexes, three of the four available coordination sites
Magnus R. Buchner, Chantsalmaa Berthold
wiley   +1 more source

Ring Formation in Sesquiterpene Synthesis: Biomimetic vs. Non‐Biomimetic Strategies

European Journal of Organic Chemistry, EarlyView.
A short review of cyclase enzyme‐mediated ring formation in sesquiterpene biosynthesis is presented as a prelude to six case studies examining the merits and demerits of biomimetic vs. non‐biomimetic strategies for carbocyclisation in the total synthesis of this iconic natural product class.
Bohan Lin, Chen Dai, Alan C. Spivey
wiley   +1 more source

Carbonylative Suzuki–Miyaura Coupling of 1‐Iodoglycals Mediated by the N‐Heterocyclic Carbene Catalyst PEPPSI: Preparation of C‐Acyl Glycosides

European Journal of Organic Chemistry, EarlyView.
A multicomponent carbonylative Suzuki–Miyaura reaction was developed for the synthesis of C‐acyl glycosides. Using Pyridine‐Enhanced Precatalyst Preparation, Stabilization, and Initiation (PEPPSI‐IPr) catalysis and Mo(CO)6 as a solid CO source, the reaction enables selective carbonylation of three components in synthetically useful yields, providing a ...
Eurípedes de Aguiar, Mônica F. Z. J. Toledo, Flávia Manarin, João H. de Araujo‐Neto, Milene M. Hornink, Hélio A. Stefani   +5 more
wiley   +1 more source