Reaction Of Tetrakis Research Articles

Polysulfonylethenes. Communication 3. Reactions of tetrakis(alkylsulfonyl) ethenes with amines

1. The reaction of tetrakis(alkylsulfonyl)ethenes and tetrakis(arylsulfonyl)ethanes with secondary or bulky primary amines gave good yields of previously unreported di(alkylsulfonyl)acetamides and di(arylsulfonyl)acetamides which are the products of the hydrolysis of unstable tris(alkylsulfonyl)vinylamines and tris(arylsulfonyl)vinylamines. 2. The analogous reaction with primary amines gave, in addition to acetamides, previously unreported 1,1-di(alkylsulfonyl)-2,2-di(alkylamino)ethenes and 1,1-di(arylsulfonyl)-2,2-di(arylamino)ethenes, which are the products of the replacement of two alkylsulfonyl or arylsulfonyl groups. 3. Concurrent fragmentation is characteristic only for highly basic amines with pKb < 5–6.

ChemInform Abstract: Electron‐Transfer Reactions of Tetrakis(μ‐acetato)dirhodium(II) and the Self‐Exchange Rate of the Rh2(OAc)4+/Rh2(OAc)4 Couple.

AbstractDie Geschwindigkeitskonstanten für die Einelektron‐Übertragungsreaktionen von (Ia) mit Cer(IV) in HClO4 und H2SO4 sowie von (Ib) mit VO2+ und Fe" in HClO4 werden mitgeteilt.

Hydrated oxocarbons, I. Preparation and reactions of tetrakis[organoboranediylbis(oxy)]cyclobutanes

Octahydroxycyclobutane (1) reacts with various monoorganoboranes to give in high yields the tetrakis[organoboranediylbis(oxy)] derivatives 2a–d. These react with tertiary amines to yield either 1:2 or 1:4 adducts. Depending on the organo substituents at the boron atoms, alcoholyses of 2a–d result in either partial or complete deborylation giving e.g. tetraalkoxybis[phenyl-boranediylbis(oxy)] derivatives of the cyclobutane ring (7b, c), or, with ring-opening, dimethyl dihydroxyfumarate (5). Hydratisierte Oxokohlenwasserstoffe, I. Herstellung und Reaktionen von Tetrakis[organoborandiylbis(oxy)]cyclobutanen Aus Octahydroxyclobutan (1) erhalt man mit verschiedenen Monoorganoboranen in hohen Ausbeuten die Tetrakis[organoborandiylbis(oxy)]-Derivate 2a–d, die mit tertiaren Aminen 1:2-sowie 1:4-Additionsverbindungen bilden. Bei der Alkoholyse lassen sich 2a–d in Abhangigkeit von den Organo-Substituenten an den Bor-Atomen partiell und vollstandig entborylieren. Man erhalt z. B. Tetraalkoxybis[phenylborandiylbis(oxy)]-Derivate des Cyclobutan-Rings (7b, c) oder, infolge Ringoffnung, Dihydroxyfumarsaure-dimethylester (5).

Some reactions of tetrakis(.mu.-acetato)dichromium(II) with potentially chelating ligands: two unexpected products

Some reactions of tetrakis(.mu.-acetato)dichromium(II) with potentially chelating ligands: two unexpected products

Reactions of tetrakis(substituted phosphine)-palladium (O) with fluorocarbons

Treatment of tetrakis(substituted phosphine)-palladium (in brief PdL 4) with C 2F 3X gave a complex containing (i) 3-membered metalocyclic ring, (ii) perfluorovinyl group or (iii) only X groups depending on the nature of the substituted phosphine. Reaction of PdL 4 with (CF 3) 2CO and (CF 3) 2 C:C(CN) 2 gave complexes containing 3-membered and 5-membered metalocylic ring. Vinyl rearrangement of L 2PdC(CF 3) 2C(CN) 2 was effected by using silver acetate. These reactions were explained on the basis of S N2 mechanism involving a trigonal pyramidal addition intermediate.

Studies on organic fluorine compounds. 28. Synthesis and some reactions of tetrakis(trifluoromethyl)-1,4-diphosphabenzene

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStudies on organic fluorine compounds. 28. Synthesis and some reactions of tetrakis(trifluoromethyl)-1,4-diphosphabenzeneYoshiro Kobayashi, Hiroshi Hamana, Shomi Fujino, Akio Ohsawa, and Itsumaro KumadakiCite this: J. Am. Chem. Soc. 1980, 102, 1, 252–255Publication Date (Print):January 1, 1980Publication History Published online1 May 2002Published inissue 1 January 1980https://doi.org/10.1021/ja00521a039RIGHTS & PERMISSIONSArticle Views163Altmetric-Citations17LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (458 KB) Get e-Alerts Get e-Alerts

The synthesis of a cationic ylide complex of platinum(II) by the reaction of tetrakis(triphenylphosphine)platinum(O) with choloroiodomethane.

The reaction of Pt(PPh 3) 4 with CH 2Cl1 in benzene yields the cationic ylide complex cis -[Pt(PPh 3) 2(CH 2PPh 3)Cl]I in high yield. This complex has been converted to cis -[(PPh 3) 2(CH 2PPh 3)X]X (X  Br or I) by reaction with LiBr or NaI. Reaction of cis -[Pt(PPH 3)I]I with iodine yields cis -[Pt(PPh 3) 2(CH 2PPh 3)I]I 3. Nmr data are given in support of the suggested structures.

Reaction of tetrakis (trifluoromethyl)allene with anions [CpMo(CO)2PPh3]- and [CpW(CO)2PPh3

Theσ-dienyl complexes are formed when tetrakis (trifluoromethyl)allene is reacted with dicarbonyltriphenylphosphine-π-cyclopentadienylmolybdate and dicarbonyltriphenylphosphine-π-cyclopentadienyltungstate.

Reaction of tetrakis(trifluoromethyl)furan and its photo-adduct

Reaction of tetrakis(trifluoromethyl)furan and its photo-adduct

Fluorine-containing allenes 9. The cesium salt of 1,1,3,3-tetrakis (trifluoromethyl)perfluoropropenyl carbanion and its properties

1. The reaction of tetrakis(trifluoromethyl)allene with CsF in diglyme leads to the formation of a Cs salt of mesomeric 1,1,3,3-tetrakis(trifluoromethyl)perfluoropropenyl carbanion (II). When this is heated or treated with benzoyl chloride, the initial allene is reformed. 2. The reactions of the Cs salt (II) with water, methyl iodine, allyl bromide, and monochloromethyl ether leads to compounds which are formally products of the addition of HF or the corresponding alkyl (alkenyl or methoxyalkyl) fluoride to one of the double bonds of the cumulene system of tetrakis(trifluoroinethyl)allene.

Reaction of tetrakis(trifluoromethyl)allene with [?5-C5H5Mo(CO)3]? and [?5-C5H5W(CO)3

Reaction of tetrakis(trifluoromethyl)allene with [?5-C5H5Mo(CO)3]? and [?5-C5H5W(CO)3

Tetraquecksilbermethane. Tetrakis(methylthioquecksilber)-methan C(HgSCH3)4 und µ-Dithiotetraquecksilbermethan CHg4S2; Synthesen und Schwingungsspektren / Tetramercurimethanes. Tetrakis(methylthiomercuri)methane C(HgSCH3)4 and µ-Dithiotetramercurimethane CHg4S2; Syntheses and Vibrational Spectra

Abstract Reactions of tetrakis(acetoxymercuri)methanes C(HgOOCCR3)4 (R = H, or F) in aqueous solutions with methylsulfane CH3SH, or sulfane H2S, yield tetrakis(methylthiomercuri)methane C(HgSCH3)4, and μ-dithiotetramercurimethane CHg4S2, respectively, both insoluble in common solvents and thermally remarkably stable. The central CHg4 groups of the starting materials have been preserved under the reaction conditions, thus tetrahedral entities C(HgS–)4 are common to both compounds. In the polymeric, amorphous CHg4S2 the CHg4 units are linked by sulfur bridges in a highly disordered manner, as is suggested by vibrational spectra. In other respects close similarities in the vibrational behaviour of these CHg4 fragments and of the isosteric NHg4 tetrahedra in tetramercurioammonium complexes have been observed.

The reaction of tetrakis(trifluoromethyl)allene with sodium derivatives of iron and rhenium carbonyls

1. The reaction of tetrakis(trifluoromethy1)allene with π-C5H5Fe(CO) 2 − and Re(CO) 5 − gives σ-complexes. 2. On irradiation and heating, the σ-complex of iron is converted into the π-allylidene complex.

Reaction of tetrakis(trifluoromethyl)allene with carbonylate anions. X-ray study of three novel fluoroolefinic complexes

X-ray structure analysis is carried out for three new complexes prepared by interaction of tetrakis(trifluoromethyl)allene with carbonylate anions [CpFe(CO) 2]- and [Re(CO) 5]- . In the molecule of [{(F 3C) 2CCC(CF 3)CF 2}Re(CO) 5] the η 1-butadienyl ligand is non-planar with a dihedral angle of 83° due to steric overcrowding and is bonded by the ReC σ-bond (2.25 Å). In the complex ▪ Fe(η 5−Cp)PPh 3] the unusual η 3-allylidene ligand is found. One of its double bonds is not coordinated by metal. In the sandwich molecule ▪ Fe(η 5−Cp)] the dihedral angle between η 5-ligands is equal to 7°, One of them is a novel acyclic pentadienylidene ligand with a terminal double CC bond not interacting with metal. The nature of the two latter complexes was revealed by the present X-ray study.

Synthesis and characterization of bis(dicarboxylato)dimolybdenum(II) compounds

The reaction of tetrakis(μ-acetato)dimolybdenum(II) in aqueous suspension with various dicarboxylic acids yields compounds of the general formula, Mo 2(dicarboxylate) 2· nH 2O. Phthalic acid also gives tri- and tetra-phthalates, and 1,8-naphthalene dicarboxylic acid yields only the tris complex. For malonic and acetylenedicarboxylic acids, only partial substitution occurs. Tetrakis(μ-acetato)dimolybdenum(II) in aqueous suspension also reacts with monocarboxylic acids, and with benzoic acid, Mo 2(benzoate) 4 is obtained. A polymeric structure is suggested for these compounds in the light of their spectral properties.

Nature of active centers of molybdenum catalysts for propylene disproportionation, obtained in the reaction of tetrakis(π-allyl)molybdenum with silica

The activities of surface compounds of Mo(VI), Mo(IV) and Mo(II) obtained via interaction of Mo(π-C3H5)4 with silica have been compared using the disproportionation of propylene. The surface compounds of tetravalent molybdenum were shown to be the active centers for disproportionation.

The reactions of tetrakis-(trimethylsiloxy)titanium with alkyl(aryl)-dimethoxysilanes and α,ω-dihydroxypolydimethylsiloxanes

The reactions of tetrakis-(trimethylsiloxy)titanium with vinyl methyl-, methyl phenyl-, diphenyl methoxysilanes, and α,ω-dihydroxypolydimethylsiloxanes (DHPDMSiO) of general formula HO[Si(CH 3) 2O] n H, in which n=15, 60 or 100, were studied at ratios of 1 : 1 and 1 :2 of the components; some of the properties of the resulting polymers have been examined.

Fluorine-containing allenes

The reaction of tetrakis(trifluoromethyl)allene with thiophenol and ethyl mercaptan was studied. The corresponding thioether is formed in the reaction with thiophenol, while the reaction with ethyl mercaptan gives a complex mixture of products.

Communication 1. Reaction of tetrakis(trifluoromethyl) allene with nitrogen oxides and nitrosyl chlorides

1. The radical addition reactions of NOCl, Cl2, N2O4, and N2O3 to tetrakis(trifluoromethyl)allene were studied. 2. The reaction of tetrakis(trifluoromethyl)allene with NOCl leads to a number of linear aliphatic carbonyl compounds, which are obtained as the result of eliminating one CF3 group. The allene under the influence of either N2O4 or N2O3 undergoes complex transformations, as a result of which 1-N-oxy-3,3,5,5-tetrakis(trifluoromethyl)-4-keto-1,2-diazine and 3,3,5,5-tetrakis(trifluoromethyl)-4-keto-l,2-diazine are obtained.

New oxidative substitution reactions of tetrakis(triphenylphosphine)palladium(0)

Abstract New oxidative substitution reactions of tetrakis(triphenyl-phosphine)platinum(0) are reported. Reactions with H X ( X = C 6 H 5 O, o - and p -Br-C 6 H 4 -O-, o - and p -O 2 N-C 6 H 4 -O, o - and m -H 2 N-C 6 H 4 -O-, p -H 2 NC 6 H 4 S- and p -H 3 C-C 6 H 4 -S-) yield Pt(Ph 3 P) 2 X 2 . Reactions with Cl 2 CS, I 2 , HBr, PhCOCl resulted in the insertion of Pt(Ph 3 P) 2 in one of the reactant bonds. Reactions with SnCl 2 and SnCl 4 effected the formation of a Pt(IV) hydrido complex. The results of the investigation of the reactions with other reactants are also reported.