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Reactions with Sulfur Compounds

Reactions with Sulfur Compounds. Thiosuccinic anhydride [3194-60-3] is obtained by reaction of diethyl or diphenyl succinate [621-14-7] with potassium hydrogen sulfide followed by acidification (eq. 10). Thiosuccinic anhydride is also obtained from succinic anhydride and hydrogen sulfide under pressure (121). [Pg.537]

The precious metals possess much higher specific catalytic activity than do the base metals. In addition, base metal catalysts sinter upon exposure to the exhaust gas temperatures found in engine exhaust, thereby losing the catalytic performance needed for low temperature operation. Also, the base metals deactivate because of reactions with sulfur compounds at the low temperature end of auto exhaust. As a result, a base metal automobile exhaust... [Pg.487]

The marked tendency of l-oxa-2-azaspiro[2.5]octane (52) to transfer its NH group gives rise to smooth reactions with sulfur compounds. Aminothiocyanate (94) is formed in 91% yield at room temperature within one minute and 4-methylbenzenesulfonamide (95) is formed within five minutes in 84% yield from the sulfinate (68TH50800). [Pg.209]

In addition, we have applied successfully the concept of hydrolysis-dehydration reaction with phosphorus compounds to the reaction with sulfur compounds such as sulfites7- as shown below ... [Pg.5]

The halogen atoms of the geminal dihalo derivatives of diaryl diketones and of heterocyclic ketones can be replaced in reactions with sulfur compounds 0e.g., sodium hydrogen sulfide, thioacetic acid, phosphorus pentasulfide), thioketones being formed.318,319 Staudinger and Freudenberger,320 for instance, obtained thiobenzophenone in 46% yield from benzophenone dichloride (dichlorophenylmethane) and a hot alcoholic solution of sodium hydrogen sulfide ... [Pg.640]

Reaction with sulfur compounds. Dithoic esters [RC(=S)SR ] are transformed into... [Pg.166]

Fig. 5.8 Cyclometalation reactions with sulfur compounds at room temperature... Fig. 5.8 Cyclometalation reactions with sulfur compounds at room temperature...
In the reaction with sulfur compounds such as thiophenes, S-C insertion proceeds as shown in eq. (18.27) [47-49]. [Pg.398]

Reaction with Sulfur Compounds. In a similar coupling reaction to those of alkyl halides, (1) reacts in the presence of a nickel catalyst with allylic dithioacetals to yield l-(trimethylsilyl) butadienes (eq 8). ... [Pg.668]

An accelerated corrosion of metal surfaces that results from the combined effect of oxidation and reactions with sulfur compounds and other contaminants, such us chlorides, to form a molten salt on a metal surface that fluxes, destroys, or disrupts the normal protective oxide. See also gaseous... [Pg.493]


See other pages where Reactions with Sulfur Compounds is mentioned: [Pg.896]    [Pg.897]    [Pg.415]    [Pg.415]    [Pg.415]    [Pg.218]    [Pg.113]    [Pg.56]    [Pg.245]    [Pg.25]    [Pg.243]    [Pg.973]    [Pg.54]    [Pg.295]    [Pg.1115]   
See also in sourсe #XX -- [ Pg.406 , Pg.407 , Pg.408 , Pg.409 , Pg.410 ]

See also in sourсe #XX -- [ Pg.723 ]




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Hydrogen peroxide reactions with sulfur compounds

Insertion reactions with sulfur compounds

Polysulfones by the Reaction of Allylic Compounds with Sulfur Dioxide

Raney nickel reaction with sulfur compound

Reaction of alkene oxides (oxiranes) with sulfur compounds

Reaction of carbonyl compounds with sulfur tetrafluoride

Reaction of carboxylic acid derivatives with sulfur compounds

Reactions of O2 with sulfur compounds

Reactions with Sulfur and Selenium Compounds

Sulfur compounds reactions with amides

Sulfur dichloride, reaction with aromatic compounds

Sulfur reaction with

Sulfur trioxide reaction with fluorinated compounds

Sulfur ylides reactions with carbonyl compounds

Sulfur, reaction with organo-lithium compounds

Sulfur, reaction with organolithium compounds

Sulfur-nitrogen compounds reaction with, phosgene

Sulfur-nitrogen compounds reactions with

Sulfur-oxygen compounds reaction with, phosgene

Sulfuric acid reaction with aromatic compounds

Sulfuric acid, reaction with nitro compounds

With sulfur compounds

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