Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Phenylmercuric bromide

Subsequent kinetic work has amply confirmed the mechanistic picture described above. For example, the reaction of diphenylmercury with Ph(COOEt).CH.HgBr gives an almost instantaneous reaction with precipitation of phenylmercuric bromide, whereas reaction of the soluble product with a second molar equivalent of mercuric bromide gave a very slow (ca. 2 weeks) precipitation of phenylmercuric bromide722, i.e. reaction involves (287) and (288)... [Pg.360]

The addition reaction of alkenes and phenylmercuric bromide typically occurs at about 80°C. Phenylmercuric iodides are somewhat more reactive and may be advantageous in reactions with relatively unstable alkenes.167... [Pg.916]

Dichlorocarbene addition to azodicarboxylate esters, Phenyl(bromodichloro-mcthyl)mercury reacts with diethyl azodicarboxylate to give phenylmercuric bromide (98% yield) and a product (87% yield) which was found not to be the expected di-aziridine( I), but to have the structure (2). The same product is obtained by decarboxylation of CCIjCOONa in the presence of diethyl azodicarboxylate in refluxing 1,2-dimethoxyethane (69% yield). [Pg.385]

By the action of copper on a pyridine solution of phenylmercuric bromide. ... [Pg.73]

Bromine or iodine. Two atoms of halogen in alcohol or CS2. Phenylmercuric bromide or iodhde, bromo- or iodo-benzene. do. [Pg.74]

N-Bromoacet- Dry benzene solu- Phenylmercuric bromide. Khai asch, J, Avm Ghenu Soc.,... [Pg.75]

Phenylmercuric bromide may be obtained from phenyl magnesium bromide and mercuric bromide in dry ether by the interaction of mercury diphenyl and two atoms of bromine if four atoms of the halogen are used, bromobenzene and mercuric bromide result, When mercury diphenyl and mercuric bromide in alcoholic solution are heated at 120° C., and when ethylene dibromide and mercury diphenyl are heated at 200° C. this bromide is also formed. [Pg.88]

Phenylmercaptoethanol, 475 Phenylmercuric bromide, 851 Phenylmercuric chloride, 851 Phenylmethylsjiycidic ester, 1039... [Pg.724]

Phenylmercuric chloride (m.p. 256-258°) is supplied by Metal Salts Corp., phenylmercuric bromide (m.p. 284-286°) by Wood Ridge Chem. Corp. Bromo-dichloromethane, b.p. 89-90°, is prepared in good yield by the bromination of chloroform with hydrogen bromide and aluminum bromide. [Pg.1159]

Schweizer and O Neill, unsuccessful in an attempt to follow the Reutov-Eovtsova procedure using commercial potassium l-butoxide, developed a convenient synthesis of phenyl(trichloromethyl)mercury in which phenylmercuric bromide is treated with trichloroacetate anion generated in large excess from ethyl trichloro-acetate and commercial sodium methoxide. A mixture of 200 ml. of benzene, 0.18 mole of ethyl trichloroacetate, and 0.37 mole of pulverized phenylmercuric bromide is stirred for 1.5 mln< In an ice hath and 0.154 mole of sodium methoxide is added all... [Pg.1159]

Reaction with carboxylic adds. A surprising finding is that phenyl(bromodichIoro-methyl)mercury reacts with carboxylic acids in benzene at 60-80° in about 45 min. to give dichloromethyl esters in high yield phenylmercuric bromide is produced in virtually quantitative yield ... [Pg.1160]

Moore and Ozreticif synthesized A, 2 ,-cyclodecatriene (3), a cyclic cumulene, by treating A1,2-cyclononadiene (1) with one equivalent of phenyl (tribromomethyl)-mercury in refluxing benzene, followed by removal of phenylmercuric bromide and the solvent, and obtained 10,10-dibromobicyclo[7.1.0]decene-l,2 (2), which on reaction with inethyllithium afforded the cumulene (3). [Pg.142]

Seyferth1 reports that phenyl(dihalocarbomethoxymethyl)mercury compounds, although more stable than the corresponding trihalomethyl analogs, are good sources of halocarbomethoxycarbenes. Thus, when phenyl(dibromocarbo-methoxymethyl)mercury is refluxed with cyclooctene (1) in chlorobenzene under nitrogen for 43 hours, phenylmercuric bromide is formed (87% yield) and the two... [Pg.114]

Phenyltrichloromethylmercury has also been prepared by the reaction of phenylmercuric bromide with sodium methoxide and ethyl trichloroacetate (62-71% yield) of phenylmercuric chloride with potassium <-butoxide and chloroform (52% yield) of phenylmagnesium bromide with trichloromethylmercuric bromide (24% yield) of trichloromethylmercuric bromide with diphenyldichlorotin (49%) and of trichloromethylmercuric bromide with phenylmagnesium bromide (no yield given). [Pg.51]

Tri- a-naphthy Ibis -muthine dibromide Mercury diphenyl. Tri-a-naphthylbis-muthine, diphenyl-a-naphthylbismuthine, mercury di-a-naphthyl, phenylmercuric bromide and bromoben-zene. Challenger and Allpress, ibid, 1921, 119, 913. [Pg.267]

The initial rates are retarded by added phenylmercuric bromide. This effect is greatest for 1-heptene, less for cyclooctene, and not perceptible for 2,3-dimethyl-2-pentene. These observations provide strong evidence that the decomposition of PhHgCCfiBr is reversible and suggest the following mechanism. [Pg.392]

Bromol. See 2,4,6-Tribromophenol (Bromomercuri) benzene. See Phenylmercuric bromide... [Pg.566]

Mercury, (benzoato-o) phenyl-. See Phenylmercuric benzoate Mercury bichloride. See Mercury chloride (ic) Mercury bisulfate. See. Mercury sulfate (ic) Mercury, bromophenyl-. See Phenylmercuric bromide... [Pg.2533]

Salor Sigma Spectrum Quality Prods. http //www.spectrumchemical. com Phenylmercuric bromide CAS 1192-89-8 EINECS/ELINCS 214-760-8 Synonyms (Bromomercuri) benzene Bromophenylmercury Mercury, bromophenyl- Phenylmercury bromide Phenylmercury(ll) bromide... [Pg.3324]

Phenylmercury bromide Phenylmercury(ll) bromide. See Phenylmercuric bromide Phenylmercury chloride. See Phenylmercuric chloride... [Pg.3325]

Olealkonium chloride Phenoxyisopropanol Phenyl benzoate Phenylmercuric acetate Phenylmercuric benzoate Phenylmercuric borate Phenylmercuric bromide Phenylmercuric chloride Phenylparaben o-Phenylphenol Piroctone olamine Polyaminopropyl biguanide Potassium benzoate Potassium butyl paraben Potassium caroate Potassium ethylparaben Potassium metabisulfite . Potassium methylparaben Potassium paraben Potassium o-phenylphenate... [Pg.5563]

Diisopropylcarbodiimide heated at ca. 80° with 2 moles phenyl (bromodichloro-methyl) mercury in chlorobenzene until phenylmercuric bromide starts to precipitate N-isopropyldichlorazomethine. Y 92%. F. e. s. D. Seyferth and R. Damrauer, Tetrah. Let. 1966, 189. [Pg.416]


See other pages where Phenylmercuric bromide is mentioned: [Pg.284]    [Pg.285]    [Pg.285]    [Pg.100]    [Pg.640]    [Pg.672]    [Pg.65]    [Pg.186]    [Pg.429]    [Pg.1159]    [Pg.186]    [Pg.703]    [Pg.567]    [Pg.6165]    [Pg.153]    [Pg.192]    [Pg.435]    [Pg.233]   
See also in sourсe #XX -- [ Pg.353 , Pg.385 ]

See also in sourсe #XX -- [ Pg.353 , Pg.385 ]




SEARCH



© 2024 chempedia.info