14694-95-2Relevant articles and documents
Djerassi, C.,Gutzwiller, J.
, p. 4537 - 4538 (1966)
Synthesis of a square-planar rhodium alkylidene N-heterocyclic carbene complex and its reactivity toward alkenes
Palacios, Laura,Miao, Xiaowei,Di Giuseppe, Andrea,Pascal, Simon,Cunchillos, Carmen,Castarlenas, Ricardo,Perez-Torrente, Jesus J.,Lahoz, Fernando J.,Dixneuf, Pierre H.,Oro, Luis A.
, p. 5208 - 5213 (2011)
The first rhodium alkylidene square-planar complex stabilized by an N-heterocyclic carbene ligand, RhCl(=CHPh)(IPr)PPh3 (2; IPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-carbene), has been prepared by reaction of RhCl(IPr)(PPh3)2 (1) with phenyldiazomethane and its dynamic behavior in solution studied. Treatment of 2 with alkenes results in the formation of the η2-olefin complexes RhCl(η2- CH2=CHR)(IPr)PPh3 (3, R = H; 4, R = Ph; 5, R = OEt) and new olefins arising from the coupling of the alkylidene with the alkenes, likely via a metallacyclobutane intermediate.
Arulsamy, Kilakathi S.,Pandey, Krishna K.,Agarwala, Umesh C.
, p. L51 - L52 (1981)
Synthesis of Ammonium Ions and Nitrosylation Reactions using Nitrosyl Chloride and Alkyl Nitrites
Khan, M. Ishaque,Agarwala, U. C.
, p. 1139 - 1142 (1989)
Nitrosyl chloride (NOCl) reacts with RuCl3*xH2O in the presence of PPh3 in different alcohols leading to the formation of ammonium ions and under mild experimental conditions, through reductive deoxygenation.Some parameters affecting th
Synthesis of Silicon and Germanium-Containing Heterosumanenes via Rhodium-Catalyzed Cyclodehydrogenation of Silicon/Germanium-Hydrogen and Carbon-Hydrogen Bonds
Zhou, Dandan,Gao, Ya,Liu, Bingxin,Tan, Qitao,Xu, Bin
, p. 4628 - 4631 (2017)
A three-step synthesis of C3-symmetric trisilasumanene and trigermasumanene, heteroanalogues of the π-bowl sumanene, was achieved using a threefold rhodium-catalyzed cyclodehydrogenation of Si/Ge-H and C-H bonds as the key step. Trigermasumanene was proven to adopt a planar geometry by single crystal X-ray diffraction for the first time. The optical properties were also investigated by UV-vis and fluorescence spectroscopy.
Dimeric rhodium-ethylene NHC complexes as reactive intermediates for the preparation of tetra-heteroleptic NHC complexes
Zenkina, Olena V.,Keske, Eric C.,Wang, Ruiyao,Crudden, Cathleen M.
, p. 6423 - 6432 (2011)
Dimeric rhodium complexes with various N-heterocyclic carbene (NHC) ligands have been synthesized and fully characterized. X-ray analysis unambiguously confirms the bimetallic nature of these complexes, and in all cases one molecule of ethylene is coordinated to each metal center in an η2- fashion. The Rh atoms are also coordinated to one NHC ligand and are interconnected by two μ-chlorine bridges. The dimeric nature of the complexes is most likely stabilized due to the significant steric bulk around the metal centers provided by the carbene ligands. Consistent with this, modulating the steric properties and backbone saturation of the ligands was shown to have a significant effect on the stability and geometry of the complexes. Treatment of the carbene dimers with ligands such as PPh3 results in cleavage of the dimers and a unique synthesis of tetra-heteroleptic complexes of the general formula [ClRh(NHC)(PR3)(CH2=CH2)]. The stabilities of these compounds have been assessed, and although decomposition to Wilkinson's complex is observed upon treatment with an excess of phosphine for prolonged times, the presence of the ethylene ligand provides greatly increased stability compared with the bis-phosphine analogues [ClRh(NHC)(PPh 3)2].
Mechanochemical dehydrocoupling of dimethylamine borane and hydrogenation reactions using Wilkinson's catalyst
Schumacher, Christian,Crawford, Deborah E.,Ragu?, Branimir,Glaum, Robert,James, Stuart L.,Bolm, Carsten,Hernández, José G.
supporting information, p. 8355 - 8358 (2018/08/04)
Mechanochemistry enabled the selective synthesis of the recherché orange polymorph of Wilkinson's catalyst [RhCl(PPh3)3]. The mechanochemically prepared Rh-complex catalysed the solvent-free dehydrogenation of Me2NH·BH3 in a ball mill. The in situ-generated hydrogen (H2) could be utilised for Rh-catalysed hydrogenation reactions by ball milling.
The continuous reaction device and method of using the continuous composite (by machine translation)
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Paragraph 0186, (2017/01/02)
PROBLEM TO BE SOLVED: compounds with high productivity can be generated. SOLUTION: 1 the raw material supply section 12 and a first, a second and 2 the raw material supply section 14, and a reaction part 18, the first reaction part 1 from the raw material supply section 1 and a second quantity of raw material, the raw material supply section 2 from the first reaction part 2 and a second quantity of raw material, the raw material supply section 1 from the first reaction part 1 and a second temperature of the raw material, the raw material supply section 2 from the first reaction part 2 and supplied to the temperature of the raw material, and having a control part 22, a continuous reaction device as shown in the drawing. Selected drawing: fig. 1 (by machine translation)
