Results 21 to 30 of about 13,631,199 (274)

Dataset of polyoxometalate-assisted N-heterocyclic carbene gold(I) complexes

Data in Brief, 2019
The present paper is the Supplemental materials for our original paper entitled “highly active, homogeneous catalysis by polyoxometalate-assisted N-heterocyclic carbene gold(I) complexes for hydration of diphenylacetylene.
Kenji Nomiya, Yuichi Murata, Yuta Iwasaki, Hidekazu Arai, Takuya Yoshida, Noriko Chikaraishi Kasuga, Toshiaki Matsubara   +6 more
doaj   +1 more source

3,5-Bis(3-methylimidazolium-1-ylmethyl)toluene bis(hexafluorophosphate)

Acta Crystallographica Section E, 2010
The asymmetric unit of the title N-heterocyclic carbene compound, C17H22N42+·2PF6−, consists of one N-heterocyclic carbene dication and two hexafluorophosphate anions.
Hoong-Kun Fun, Chin Sing Yeap, Siang Guan Teoh, Rosenani A. Haque, Abbas Washeel   +4 more
doaj   +1 more source

A persistent P,N-heterocyclic carbene [PDF]

Chemical Communications, 2008
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, Maoying, Song, Jean-Baptiste, Bourg, Bruno, Donnadieu, Michele, Soleilhavoup, Guy, Bertrand   +5 more
openaire   +2 more sources

A Stable Four-Membered N-Heterocyclic Carbene

, 2016
The synthesis of the first four-membered N-heterocyclic carbene is described. Depending on the substituents on the nitrogen atoms, it is possible to characterize at room temperature the carbene dimer or the free carbene.
Emmanuelle Despagnet-Ayoub (1514353), Robert H. Grubbs (1318044)   +1 more
core   +4 more sources

N-Heterocyclic Carbene Triazolium Salts Containing Brominated Aromatic Motifs: Features and Synthetic Protocol

CHIMIA, 2020
In this work, we provide a brief overview of the role of N-aryl substituents on triazolium N-heterocyclic carbene (NHC) catalysis. This synopsis provides context for the disclosed synthetic protocol for new chiral N-heterocyclic carbene (NHC) triazolium ...
Anas Abo Raed, Vasudevan Dhayalan, Shahar Barkai, Anat Milo   +3 more
doaj   +1 more source

[(1,2,5,6-η)-Cycloocta-1,5-diene](1-ethyl-4-isopropyl-1,2,4-triazol-5-ylidene)(triphenylphosphane)iridium(I) tetrafluoridoborate dichloromethane sesquisolvate

IUCrData, 2023
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, Michael Gau, Daniel R. Albert, Edward Rajaseelan   +3 more
doaj   +1 more source

3,3′-Di-n-butyl-1,1′-(p-phenylenedimethylene)diimidazolium bis(hexafluorophosphate)

Acta Crystallographica Section E, 2010
The asymmetric unit of the title N-heterocyclic carbene compound, C22H32N42+·2PF6−, consists of one half of the N-heterocyclic carbene dication and one hexafluorophosphate anion.
Rosenani A. Haque, Abbas Washeel, S. Fatimah Nasri, Chin Sing Yeap, Hoong-Kun Fun   +4 more
doaj   +1 more source

Aryl radical-mediated N-heterocyclic carbene catalysis

Nature Communications, 2021
Use of aryl halides as coupling precursors typically occurs through transition metal catalysis and/or photoredox chemistry, which requires some combination of light, metals, and oxidants or reductants.
Yuki Matsuki, Nagisa Ohnishi, Yuki Kakeno, Shunsuke Takemoto, Takuya Ishii, Kazunori Nagao, Hirohisa Ohmiya   +6 more
doaj   +1 more source

N-Heterocyclic carbene-catalyzed oxidations [PDF]

Tetrahedron, 2009
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, Audrey, Chan, Eric M, Phillips, Karl A, Scheidt   +3 more
openaire   +2 more sources

N-heterocyclic carbene-stabilized Au13 superatom clusters [PDF]

, 2018
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Ali, nazemi, Shinjiro, Takano, Tatsuya, Tsukuda, Sami, Kaappa, Paul A., Lummis, Tetyana I., Levchenko, Sami, Malola, Mina R., Narouz, Hannu, Häkkinen, Kevin G., Stamplecoskie, Seyedehgoonay, Yousefalizadeh, Cathleen, Crudden   +11 more
core   +1 more source