Results 21 to 30 of about 13,617,516 (263)
Self-assembly of N-heterocyclic carbenes on Au(111)
Although N-heterocyclic carbenes (NHCs) are a promising class of ligands for forming robust self-assembled monolayers on metals, many questions remain about their behavior on surfaces.
Alex Inayeh +7 more
doaj +1 more source
Fifteen cyclic and acylic carbenes have been calculated with density functional theory at the BP86/def2-TZVPP level. The strength of the internal X→p(π) π-donation of heteroatoms and carbon which are bonded to the C(II) atom is estimated with the help of
Diego M. Andrada +3 more
doaj +1 more source
The synthesis and crystal structure of a new triazole-based N-heterocyclic carbene iridium(I) cationic complex with a tetrafluoridoborate counter-anion and solvating dichloromethane, [Ir(C8H12)(C7H13N3)(C18H15P)]BF4·1.5CH2Cl2, is reported. The IrI center
Aaron Maynard +3 more
doaj +1 more source
A persistent P,N-heterocyclic carbene [PDF]
Conjugate acids of cyclic (amino)(phosphino)carbenes (P-NHCs) have been prepared, and several different processes have been observed during their deprotonation, which include the formation of a metastable P-NHC, an azomethine ylide, and a bicyclic phosphirane.
Guido D, Frey +5 more
openaire +2 more sources
A new triazole-based N-heterocyclic carbene iridium(I) cationic complex with a tetrafluoridoborate counter-anion, [Ir(C8H12)(C18H15P)(C6H11N3)]BF4·0.8CH2Cl2, has been synthesized and structurally characterized.
Troy E. Smith +3 more
doaj +1 more source
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
Synthesis of Platinum(II) N-Heterocyclic Carbenes Based on Adenosine
Organometallic derivatization of nucleosides is a highly promising strategy for the improvement of the therapeutic profile of nucleosides. Herein, a methodology for the synthesis of metalated adenosine with a deprotected ribose moiety is described ...
Maria Inês P. S. Leitão +3 more
doaj +1 more source
N-Heterocyclic carbene/Brønsted acid cooperative catalysis as a powerful tool in organic synthesis
The interplay between metals and N-heterocyclic carbenes (NHCs) has provided a window of opportunities for the development of novel catalytic strategies within the past few years.
Rob De Vreese, Matthias D’hooghe
doaj +1 more source
Electrochemical deposition of N-heterocyclic carbene monolayers on metal surfaces
N-heterocyclic carbenes (NHCs) have been widely used for the formation of monolayers but self-assembly methods come with drawbacks such as need for dry environment or using specifically-synthesized precursors.
Einav Amit +11 more
doaj +1 more source
N-Heterocyclic carbene-catalyzed oxidations [PDF]
N-Heterocyclic carbenes catalyze the oxidation of allylic and benzylic alcohols as well as saturated aldehydes to esters with manganese(IV) oxide in excellent yields. A variety of esters can be synthesized, including protected carboxylates. The oxidation proceeds under mild conditions, with low loadings of a simple triazolium salt pre-catalyst in the ...
Brooks E, Maki +3 more
openaire +2 more sources

