Mercury(II) and gold(III) derivatives of 2-phenyl pyridines and 2-phenyl-4-(methylcarboxylato)quinoline
摘要:
ortho-Mercurated derivatives of several substituted 2-phenylpyridines and of 2-phenyl-4-(methylcarboxylato)quinoline have been prepared and characterised. C,N-chelated gold(III) derivatives, [AuCl2(C6H4C5H3RN)] (R = H, 3-Me, 3,5-Me-2, 4-Pr-n, 4-Bu-t) are prepared more efficiently by trans-metallation reactions than by direct reaction of AuCl4- with the phenylpyridines. The new gold complexes were characterised spectroscopically and a variety of substitution reactions have been effected. As is usual with unsymmetrical bidentate ligands, the softer donor atom is found trans to the N-donor of the pyridine unit. Crystal-structure determinations are reported for [Au(OAc)(pmpy)(py)]ClO4, [Au(ppy)(dpbt)]BPh4, [Au(ppy)(S2CNMe2)]BPh4 and AuCl(pqcm)(2) [Hppy = 2-phenylpyridine, Hpmpy = 2-phenyl-3-methylpyridine, Hpqcm = 2-phenyl-4-(methylcarboxylato)quinoline]. (C) 2000 Elsevier Science S.A. All rights reserved.
Syntheses of Nonracemic Ortho-Mercurated and Ortho-Ruthenated Complexes of 2-[Tricarbonyl(η<sup>6</sup>-phenyl)chromium]pyridine
作者:Jean-Pierre Djukic、Alexsandro Berger、Manon Duquenne、Michel Pfeffer、André de Cian、Nathalie Kyritsakas-Gruber、Jérôme Vachon、Jérôme Lacour
DOI:10.1021/om0494667
日期:2004.11.1
The reaction of racemic orthomercurated (η6-arene)tricarbonylchromiumcomplexes with bis[(η6-cymene)ruthenium(II)dichloride] affords the corresponding dinuclear (Cr,Ru) products with moderate yields, which have been satisfactorily characterized by X-ray diffraction analysis. The synthesis of nonracemic orthomercurated (η6-arene)tricarbonylchromiumcomplexes has been attempted starting from enantio-enriched
Bis(2-(2-pyridyl)phenyl)tritelluride - synthesis and crystal structure
作者:Thomas A. Hamor、Najih Al-Salim、Antony A. West、William R. McWhinnie
DOI:10.1016/s0022-328x(00)99669-4
日期:1986.8
The synthesis and molecular structure of bis(2-(2-pyridyl)phenyl)tritelluride are described. There is a short Te⋯N non-bonded interaction of 2.554(7) Å, which may be responsible for the stability of the molecule. The tritelluride can be converted into the related ditelluride by treatment with copper in refluxing dioxane. The ditelluride may also be prepared by a route not involving the tritelluride
Chloride-Promoted Synthesis of Cis Bis-Chelated Palladium(II) Complexes from Ortho-Mercurated Tricarbonyl(η<sup>6</sup>-arene)chromium Complexes
作者:Alexsandro Berger、Jean-Pierre Djukic、Michel Pfeffer、Jérôme Lacour、Laurent Vial、André de Cian、Nathalie Kyritsakas-Gruber
DOI:10.1021/om030433l
日期:2003.12.1
(η6-arene)Cr(CO)3 complexes. The study of the mechanism of this transmetalation reaction reveals the key role of the excess of chloride salt, which is necessary for the isolation of persistent heteroleptic bis-chelated Pd(II) complexes. This method was further applied to the synthesis of highly enantioenriched (+) and (−) samples of the ortho-chloropalladated 2-[tricarbonyl(η6-phenyl)chromium]pyridine, whose
The crystal and molecular structures of 2-(2-pyridyl)phenyltellurium(II) chloride and of two modifications of 2-(2-pyridyl)phenyltellurium(II) iodide; chemical investigations of organotellurium iodides
作者:Thomas A. Hamor、Hongli Chen、William R. McWhinnie、Sean L.W. McWhinnie、Zulfiqar Majeed
DOI:10.1016/0022-328x(96)06375-9
日期:1996.10
chloride. One form of the related iodide (2) is triclinic and isomorphous with the above chloride; selected bond distances are TeI 2.937(1), TeC 2.095(18) and TeN 2.260(10) Å. A second form of the iodide (3) is monoclinic (Z = 4) and yields more accurate parameters: TeI 2.917(11), TeC 2.112(6), TeN 2.268(5) Å. The synthesis of the new organyltellurium(II) iodides are given together with those of
Exploring the Role of Strong Intramolecular Coordination of the 2‐(2'‐pyridyl)phenyl Group in Heavy Main Group Halides: Insights from Synthesis, Structural, and Bonding Analyses
作者:Rajesh Deka、Arup Sarkar、Anand Gupta、Ray J. Butcher、Peter C. Junk、David R. Turner、Glen B. Deacon、Harkesh B. Singh
DOI:10.1002/ejic.202000094
日期:2020.6.16
2-(2'-pyridyl)phenyl] (1) with SnCl4 and SbCl3, the synthesis of the monoorgano main group halides, [ppySnCl(3)(H2O)]center dot 2(0.5diox) (diox = 1,4-dioxane) [2(H2O)]center dot 2(0.5diox) and [ppySbCl(2)] (3) was achieved. The reaction of 1 with BiCl3 does not give the analogous monoorganobismuth dichloride. Instead, it results in the formation of [(ppy)(2)Bi](+)center dot[ppyBiCl(3)](-) (4). Reactions of (ppy)(2)Te