Mercury I acetate

Merkuro-. mercurous, mercury (I), -azetat, n. mercurous acetate. mercury(I) acetate, -chlorld, n. mercurous chloride, mercury(I) choride. -chrom, n. (Pharm.) mercuro chrome, -jodid, n. n ercurous iodide, mer-cury(I) iodide. -nitrat, n. mercurous nitrate, mercury(I) nitrste. -oxyd, n. mercurous oxide, mercury(I) oxide, -salz, n. mercurous salt, mercury (I) salt, -sulfat, n. mercurouasulfate, mercury(I) sulfate, -sulfid, n. mercurous sulfide, mercury(I) sulfide, -verbindung, /. mercurous compound, mercury (I) compound. 

Very little is known about white mercury(I) acetylide, which is formed as a monohydrate by passing ethyne into aqueous solutions of mercury(I) acetate, while white HgC2 was similarly obtained from HgI2/KI or K2[Hg(CN)4] solutions.213 This material decomposes at 100 °C and with dilute HC1, affords ethyne. The mercury(I) compound Hg2C2H20, from... 

IV.35 ACETATES, CH3COO Solubility All normal acetates, with the exception of silver and mercury(I) acetates which are sparingly soluble, are readily soluble in water. Some basic acetates, e.g. those of iron, aluminium, and chromium, are insoluble in water. The free acid, CH2COOH, is a colourless liquid with a pungent odour, boiling point 117°, melting point 17° and is miscible with water in all proportions it has a corrosive action on the skin. 

Nitrates, chlorates, acetates, manganates, and permanganates are all soluble exceptions are a few basic nitrates (e.g. Bi and Sb) and basic acetates (e.g. Fe) silver and mercury(I) acetates are sparingly soluble. 

Solubility all normal acetates, with the exception of silver and mercury(I) acetates which are sparingly soluble, are readily soluble in water. Some... 

Scheme 10 shows some recent reactions of alkenylmercury compounds. " Mercury(i) acetate converts the cyclopropane (64) to the jS-mercuriketone (65), which is then converted to the conjugated ketone (by PdC -HCI) or to y-ketoesters (by CO-ROH) in acceptable yields. Finally, O-silylated and... 

Electrophilic mercuration of isoxazoles parallels that of pyridine and other azole derivatives. The reaction of 3,5-disubstituted isoxazoles with raercury(II) acetate results in a very high yield of 4-acetoxymercury derivatives which can be converted into 4-broraoisoxazoles. Thus, the reaction of 5-phenylisoxazole (64) with mercury(II) acetate gave mercuriacetate (88) (in 90% yield), which after treatment with potassium bromide and bromine gave 4-bromo-5-phenylisoxazole (89) in 65% yield. The unsubstituted isoxazole, however, is oxidized under the same reaction conditions, giving mercury(I) salts. 

Notes 1, Gold anode 2, silver anode 3, mercury anode 4, mercury cathode for reagent see footnote J 5, trace of mercury(II) acetate dissolved in acetic acid/methanol mixture added as catalyst, t A, amperometric I, indicator P, potentiometric. 

S-Acetamidomethyl-L-cysteine hydrochloride Alanine, 3-[(acetamidomethyl)thio]-, monohydrochloride, i- (8) L-Cysteine, S-[(acetylamino)methyl]-, monohydrochloride (9) (28798-28-9) L-Cysteine hydrochloride, monohydrate (8, 9) (7048-04-6) Mercury(II) acetate Acetic acid, mercury (2) salt (8,9) (1600-27-7)... 

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. 

Silver(I) acetate, 396 Silver hexafluoroantimonate, 467 Silver imidazolate, 467 Silver nitrite-Mercury(II) chloride, 467-468 Silver(l) oxide, 468-469 Silver(II) oxide, 469 Silver perchlorate, 469-470 Silver tetrafluoroborate, 471 Silver(I) trifluoracetate, 471 Simmons-Smith reagent, 210-211, 472, 598 Sinularene, 246 Slaframine, 114, 115 Sodium amalgam, 473-475 Sodium-Ammonia, 472 Sodium benzeneselenoate, 475 Sodium bicarbonate, 476 Sodium bis(methoxyethoxy)aluminum hydride, 93, 476-477 Sodium borate, 322 Sodium borohydride, 477-479, 499 Sodium borohydride-Cobalt(IF) chloride, 479 Sodium borohydride-Methanesulfonic acid,... 

The anthracyciinone class of anticancer compounds (which includes daunomycin and adriamycin) can be made using a mercury (I I )-promoted alkyne hydration. You saw the synthesis of alkynes in this class on Chapter 9 where we discussed additions of metallated alkynes to ketones. Here is the final step in a synthesis of the anticancer compound deoxydaunomycinone the alkyne is hydrated using Hg2+ in dilute sulfuric acid the sulfuric acid also catalyses the hydrolysis of the phenolic acetate to give the final product. 

On boiling no visible change takes place [difference from mercury(I) and silver(I) ions]. The precipitate dissolves in dilute nitric acid and even in acetic acid and C02 gas is liberated ... 

Precipitates of the corresponding bromates are also produced by the addition of solutions of barium chloride, lead acetate or mercury(I) nitrate to a concentrated solution of a bromate. 

Mercury(11) chloride solution white precipitate of mercury(I) chloride (calomel) is produced on warming this passes into grey, metallic mercury, in the presence of excess formate solution (distinction from acetate). 

One of the methods for the synthesis of alkyl azides is based on the regioselective addition of mercury(II) azide, generated from mercury(II) acetate and sodium azide, to alkenes in water/te-trahydrofuran (1 1) to afford /i-azidoalkylineiciiry compounds which are then reductively demercurated to alkyl azides5-7. Completely diastereoselective cis addition occurred with norbornene (exo addition)5 and cyclopropenes6. 

Evidence for kinetic control as opposed to thermodynamic control results from the comparison of the mercury-induced cyclization of. V./V-diallyla ni lines and JV-allylcarbamate. When A1, A -dial lylanilines were treated with mercury(II) acetate in tetrahydrofuran (kinetic control), trnns-WV-diary I-2,5-dimethyl piperazines 2 were stereoselectively prepared in good yield. Formation of the less stable Pv2rt.y-2,6-dimcthyl derivative is a result of kinetic control of the cyclization124. 

The less highly substituted bond of a siloxycyclopropane is quantitatively opened by mercury(II) acetate to afford -mercurio ketones. In the same pot these are transformed to a-methylene ketones in virtually quantitative yield on treatment with one equivalent of palladium(II) chloride in the presence of lithium chloride and lithium carbonate (2 equiv each). Catalytic amounts of palladium(II) chloride (0.1 equiv) are sufficient in the second step, if two equivalents of copper(II) chloride is added as an oxidant. Mechanistically, the second step involves trans-metalation to a j -palladio ketone followed by /i-hydride elimination. In bicyclic systems it is sometimes necessary to add triethylamine to avoid HPdCl induced double-bond shifts in the reaction product. Examples are the rearrangements of 18, 20 and 22. ... 

The electrophilic addition of mercury(II) acetate to benzocyclopropene proceeded in analogy to that of acids, i.e. with cyclopropane cleavage to bis(2-acetoxymethylphenyl)mercury (6). This contrasts with the addition of mercury(II) acetate to cyclopropenes which proceeds by electrophilic attack on the double bond giving allylic diacetates. 

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