Acetic acid mercury complex

O2C2H4, Acetic acid mercury complex, 24 145 O2C2H6, 1,2-Ethandiol, 22 86 020,116, Acrylic acid, methyl ester ruthenium complex, 24 176 02C,Hio CdF6C2, Ethane, 1,2-dimethoxy-, bi (trifluoromethyl)cadmium, 24 55 02C3Hg, 2,4-Pentanedione actinide and lanthanide complexes, 22 156... 

Orthoamide 123 cleanly reduced mercuric acetate in ethanol at 25°C to mercury or mercurous acetate. The organic product formed is guanidinium salt 129 lX= OAc). Similarly, iodine in methanolic potassium carbonate at 25°C oxidized orthoamide 123 to guanidinium iodide 129 (X= I). On the other hand, orthoamide 122 does not react with mercuric acetate even in boiling ethanol. Syn-elimination of mercury and acetic acid from complex 130 must be slow but anti-elimination from complex 131 (Y= l or HgX2) must occur readily. 

Knabe has introduced mercuric acetate plus ethylenediaminetetraacetic acid (EDTA) as an oxidizing agent for tertiary amines (74). The solvent employed is 1 % aqueous acetic acid. In this system, the complexed mercuric ion is reduced to elemental mercury. Knabe s studies have centered on the... 

Mercury(II) oxide and acetic acid effect the cyclization of l,4-diaryloxybut-2-ynes to 4-aryloxymethylchromenes. The transformation was attributed to cyclization of the butanone which resulted from hydration of the alkyne (72JHC489). However, it has since been shown that similar butanones do not cyclize to chromenes under the cyclization conditions (78JOC3856). Instead, a mechanism is proposed which involves a charge-induced Claisen rearrangement which is triggered by 7r-complex formation between the metal ion... 

Examples of these reactions are the reduction of the non-hydrated form of formaldehyde or that of acetic acid in aqueous solution at a mercury electrode [9] as well as the reduction of many inorganic ions in their complexed forms [49], Among organic species there are also many examples of this reaction scheme like the reduction of benzoic acid at room temperature ionic liquids [50] or that of the oxidation of ferrocenecarboxylate in the presence of a p-cyclodextrin host (see Fig. 3.21) [51]. 

A systematic study of substitution reactions of oxazole itself has not been reported. Bromination of 2-methyl-4-phenyloxazole or 4-methyl-2-phenyloxazole with either bromine or NBS gave in each case the 5-bromo derivative, while 2-methyl-5-phenyloxazole was brominated at C(4). Mercuration of oxazoles with mercury(II) acetate in acetic acid likewise occurs at C(4) or C(5), depending on which position is unsubstituted 4,5-di-phenyloxazole yields the 2-acetoxymercurio derivative. These mercury compounds react with bromine or iodine to afford the corresponding halogenooxazoles in an electrophilic replacement reaction (81JHC885). Vilsmeier-Haack formylation of 5-methyl-2-phenyloxazole with the DMF-phosphoryl chloride complex yields the 4-aldehyde. 

Chlorophenyl Tellurium Trichloride1 A 100 ml one-necked flask is fitted with a reflux condenser carrying a calcium chloride drying tube and charged with 2.7 g (10 mmol) of tellurium tetrachloride, 3.5 g (10 mmol) of 4-chlorophenyl mercury chloride, and 30 ml of dry dioxane. The mixture is heated under reflux for 4 h, cooled to 20 , the mercury dichloride/dioxane complex is filtered off, and the filtrate is distilled under vacuum. The residue is recryslallized from glacial acetic acid yield 3.3 g (96%) m.p. 225°... 

ACETIC ACID. NITRILOTRI-, MERCURY(II) COMPLEX see MDF050 ACETIC ACID, OCTYL ESTER see OEGOOO ACETIC ACID,... 

Conversion of the l,2-dithiole-3-thiones 267 into corresponding 5-alkyl- or 5-arylthio-37/-l,2-dithiol-3-ones in low to moderate yields (18-70%) was acomplished with mercury acetate in glacial acetic acid <2007ARK279>. The yields are not high due to the complexity of the remaining residue. 

Several novel clathrochelate complexes have also been prepared via the oxidation of preformed sarcophaginates. The cyclohexane-diamine fragments of char sarcophaginate underwent oxidation with mercury(II) acetate in acetic acid to give the diamide complex (Reaction 28). In addition, one of the cyclohexane rings has also been aromatized ... 

The complexing ability of ethylenediaminetetra-acetic acid (EDTA, H4Y) has been exploited in the coulometric titration of metal ions. The method depends on the reduction of the mercury(II) or cadmium chelate of EDTA and on the titration of the metal ion (for example, magnesium) to be determined by the anion of EDTA that is released. 

The reaction of 1,2-diaininocyclopropenylium perchlorates 14 with an equimolar amount of mercury(ll) acetate in dimethyl sulfoxide at 120 C afforded the cationic mercury complexes 15 as colorless crystals. The original cation salts 14 were recovered quantitatively when the complexes 15 were heated with perchloric acid in ethanol.Complexes 15 were also converted into l,2-diamino-3-iodocyclopropenylium ions 16 in 55% yield when treated with two molar equivalents of iodine in dichloromethane. Reaction of complexes 15 with sulfur in pyridine afforded the 2,3-diaminocyclopropenethiones 17 in 35% yield. 

Stability constants for the complexation of Cd by edta (H L) to yield [Cd(HL)] and [CdL] have been determined, as well as data on the complexation of zinc with propylenediaminetetra-acetic acid, zinc and cadmium with trans-1,2-cyclohexanediaminetetra-acetic acid, ° and mercury with diamino derivatives of succinic and malonic acids. Substituted hydroxamic acids have also been used as chelates in the complexation of zinc and cadmium. ... 

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