181263-53-6Relevant academic research and scientific papers
Access to Unsymmetrically Substituted Diaryl Gold N-Acyclic Carbene (NAC) and N-Heterocyclic Carbene (NHC) Complexes via the Isonitrile Route
Vethacke, Vanessa,Claus, Vanessa,Dietl, Martin C.,Ehjeij, Daniel,Meister, Arne,Huber, Jonas F.,Paschai Darian, Leon K.,Rudolph, Matthias,Rominger, Frank,Hashmi, A. Stephen K.
supporting information, p. 536 - 554 (2021/10/20)
A variety of unsymmetric diaryl gold N-acyclic carbene (NAC) complexes was synthesized via the isonitrile route by three different methods: (a) solvent free in a melt, (b) mechanochemically and (c) in THF at room temperature. The latter method can also be used to synthesize unsaturated gold NHC complexes. These methods overall offer access to a broad array of new complexes and remove one of the previous limitations of the isonitrile route to NAC and NHC complexes of gold, namely the inability to react with the less nucleophilic aromatic amines. The new complexes also proved to be successful as pre-catalysts in the gold-catalyzed phenol synthesis. (Figure presented.).
N-Heterocyclic Carbene Complexes, Their Preparation And Use
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, (2012/05/07)
Described are N-heterocyclic carbene complexes of the formula I, where n is 0 or 1, M is a metal atom containing group, R1 is selected from hydrogen alkyl, cycloalkyl, heterocycloalkyl, aryl and hetaryl, R2 is selected from hydrogen, alkyl, cycloalkyl, heterocycloalkyl, aryl and hetaryl, wherein R1 and R2 do not both stand for hydrogen. Furthermore, also described are methods for their preparation and their use as catalysts employed in a C—C, C—O, C—N or C—H bond formation reaction.
N-HETEROCYCLIC CARBENE COMPLEXES, THEIR PREPARATION AND USE
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, (2012/05/19)
N-heterocyclic carbene complexes of the formula (I) is disclosed, wherein the radicals have the meanings as defined in the invention. The preparation and the use as catalysts employed in a C-C, C-O, C-N or C-H bond formation reaction of said complexes are also disclosed.
Ligand Influences on the Supramolecular Chemistry of Simple Gold(I) Complexes: Mononuclear (Isonitrile)gold(I) Complexes
Schneider, Wolfgang,Angermaier, Klaus,Sladek, Alexander,Schmidbaur, Hubert
, p. 790 - 800 (2007/10/03)
A series of (isonitrile)gold(I) complexes has been synthesized: (MeNC)AuX (X = Cl 1a, 1 1c), (t-BuNC)AuBr 2b, (PhNC)AuX (X = Cl 3a, Br 3b, 1 3c, SCN 3d), (MesNC)AuCl 4a [mes=mesityl], and (MeOC(O)CH2NC)AuX (X = Cl 5a, Br 5b, I 5c, SCN 5d). The chlorides were prepared by the reaction of (Me2S)AuCl with equimolur amounts (or with an excess) of the corresponding isonitrile. The bromides, iodides and thiocyanates were obtained from the reaction of (RNC)AuCl with K+K- (X = Br, I, SCN) in the two-phase system H2O/CH2Cl2. The molecular and crystal structures of 1a, 2b, 3a-c, 4a, and 5a-c have been determined by X-ray diffraction methods. In the solid state the molecules are aggregated through short Au-Au contacts into dimers (4a and 5c), chains (1a, 2b and 3a-c) or sheets (5a and 5b). The influence of the isonitrile and halide ligands on the type and strength of the intermolecular Au-Au contacts is discussed.
