Results 111 to 120 of about 38,475 (330)

Impact of the Substitution Pattern in N–heterocyclic Olefin‐Substituted Phosphines on Palladium Catalysis

Advanced Synthesis &Catalysis, EarlyView.
The impact of olefin backbone substitution in N‐heterocyclic olefin‐substituted phosphines is investigated. While these ligands are highly electron‐donating, their catalytic activity in Pd‐catalyzed CN cross‐coupling reactions decreases as the size of the backbone substituent increases.
Nicolas Kaiser, Aya Alhaddad, Julian Löffler, Viktoria H. Gessner   +3 more
wiley   +1 more source

N,N,N-Tris(diphenylphosphorylmethyl)amine

IUCrData, 2017
The structure of N,N,N-tris(diphenylphosphorylmethyl)amine, C39H36NO3P3, at 103 K has monoclinic (P21/c) symmetry. Two molecules, each with pseudo-threefold rotation symmetry, crystallize in the asymmetric unit of the monoclinic unit cell.
Olaf Walter
doaj   +1 more source

Phosphine Oxide-Promoted Rh(I)-Catalyzed C-H Cyclization of Benzimidazoles with Alkenes. [PDF]

Molecules, 2023
Lu M, Xu W, Ye M.
europepmc   +1 more source

Towards the fabrication of phosphorus qubits for a silicon quantum computer

, 2001
The quest to build a quantum computer has been inspired by the recognition of the formidable computational power such a device could offer. In particular silicon-based proposals, using the nuclear or electron spin of dopants as qubits, are attractive due
A. S. Dzurak, B. E. Kane, B. E. Kane, B. S. Swartzentruber, C. A. Sackett, C. Thirstrup, D. J. Eaglesham, D. Loss, D. P. Adams, D. S. Lin, E. Hill, G. Palasantzas, G. W. Brown, H. Bracht, H. Guo, I. L. Chuang, I. L. Chuang, J A. Jones, J. E. Northrup, J. L. O’Brien, J. R. Tucker, J. W. Lyding, K. Oura, M. Copel, M. E. Hawley, M. F. Crommie, M. Sakurai, M. Y. Simmons, N. J. Curson, N. S. McAlpine, R. G. Clark, R. J. Hamers, R. Vrijen, S. R. Schofield, T. Hashizume, T. Vondrak, T.-C. Shen, W. S. Warren, Zhi-Heng Loh   +38 more
core   +1 more source

Deazaflavin‐Catalyzed Arylation of White Phosphorus with Aryl Bromides and Chlorides

Advanced Synthesis &Catalysis, EarlyView.
The 5‐aryldeazaflavin photocatalyst o‐Me‐dFl catalyzes the arylation of white phosphorus with aryl chlorides and bromides under near UV‐LED irradiation, affording triarylphosphines and tetraarylphosphonium salts. Nuclear magnetic resonance studies and density functional theory calculations offer insights into the reaction pathway.
Jannes Rückel, Tetiana Pavlovska, Martin Gawron, Radek Cibulka, Robert Wolf   +4 more
wiley   +1 more source

Electrochemical Chemo‐ and Regioselective Heterofunctionalization of Tropones via C(sp2)H Derivatization

Advanced Synthesis &Catalysis, EarlyView.
Simple and selective. The electrochemical heterofunctionalization of activated tropones is achieved using readily available inorganic salts. A theoretical model, based on cyclic voltammetry and quantum chemistry calculations, predicts both reactivity trends and site selectivity.
Mauro Garbini, Samuele Moncullo, Sofia Kiriakidi, Manuela Melucci, Sara Bellini, Chiara Zanardi, Carlos Silva López, Giulio Bertuzzi, Marco Bandini   +8 more
wiley   +1 more source

Palladium-Catalyzed C-H Functionalization and Flame-Retardant Properties of Isophosphinolines

Molecules
C-H activation is a powerful strategy for forming C-C bonds without the need for prefunctionalization. In this paper, we present a general, direct, and regioselective palladium-catalyzed functionalization of a phosphorus heterocycle, 2-phenyl-1H ...
Karen-Pacelye Mengue Me Ndong, Mina Hariri, Gabin Mwande-Maguene, Jacques Lebibi, Fatemeh Darvish, Christine Safi, Kouceila Abdelli, Adam Daïch, Claire Negrell, Rodolphe Sonnier, Loic Dumazert, Abdou Rachid Issaka Ibrahim, Ilagouma Amadou Tidjani, David Virieux, Tahar Ayad, Jean-Luc Pirat   +15 more
doaj   +1 more source

Bifunctionalized Allenes. Part XV. Synthesis of 2,5-dihydro-1,2-oxaphospholes by Electrophilic Cyclization Reaction of Phosphorylated α-Hydroxyallenes

Molecules, 2014
This paper discusses a reaction of phosphorylated α-hydroxyallenes with protected or unprotected hydroxy groups involving 5-endo-trig cyclizations. Various electrophilic reagents such as sulfuryl chloride, bromine, benzenesulfenyl and benzeneselenenyl ...
Ismail E. Ismailov, Ivaylo K. Ivanov, Valerij Ch. Christov   +2 more
doaj   +1 more source

Oxygen plasma resistant phosphine oxide containing imide/arylene copolymers [PDF]

A series of oxygen plasma resistant imide/arylene ether copolymers were prepared by reacting anhydride-terminated poly(amide acids) and amine-terminated polyarylene ethers containing phosphine oxide units. Inherent viscosities for these copolymers ranged
Jensen, Brian J.
core   +1 more source

Upcycling of Waste Fluororubber to Photocurable High‐Performance Vinyl‐Terminated Liquid Fluororubber by Multifield Coupling One‐Pot Stepwise Reactions

Advanced Science, EarlyView.
Herein, waste fluororubbers undergo controlled oxidative degradation induced by alkali and hydrogen peroxide to yield carboxyl terminated liquid fluororubbers. Subsequently, condensation reaction system efficiently converts carboxyl groups into photoreactive vinyl groups.
Donghan Li, Lu Yu, Shurui Ning, Ping Li, Changle Chen, Dawei Zhao, Mingyi Liao, Qingshi Meng, Shixin Zhang, Qinghong Fang, Hailan Kang, Long Li, Jia Yang   +12 more
wiley   +1 more source