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Sulfunc acid

Before dehydrogenation of ethane became the dominant method ethylene was pre pared by heating ethyl alcohol with sulfunc acid... [Pg.203]

In a widely used industnal process the mixture of ethylene and propene that is obtained by dehydrogenation of natural gas is passed into concentrated sulfunc acid Water is added and the solution IS heated to hydrolyze the alkyl hydrogen sulfate The product is almost exclusively a sin gle alcohol Is this alcohol ethanol 1 propanol or 2 propanoH Why is this particular one formed almost exclusively" ... [Pg.277]

On the basis of the mechanism of cationic polymerization predict the alkenes of molecu lar formula C12H24 that can most reasonably be formed when 2 methylpropene [(CH3)2C=CH2] IS treated with sulfunc acid... [Pg.278]

When 2 heptyne was treated with aqueous sulfunc acid containing mercury(II) sulfate two products each having the molecular formula C7H14O were obtained in approximately equal amounts What are these two compounds ... [Pg.387]

Nitric acid Sulfunc acid Nitronium ion Hydronium Hydrogen... [Pg.478]

Step 2 A proton is lost from the sp hybridized carbon of the intermediate to restore the aromaticity of the ring The species shown that abstracts the proton is a hydrogen sulfate ion formed by ionization of sulfunc acid... [Pg.479]

When (R) (+) 2 phenyl 2 butanol is allowed to stand in methanol containing a few drops of sulfunc acid racemic 2 methoxy 2 phenylbutane is formed Suggest a reasonable mechanism for this reaction... [Pg.697]

A compound is a cyclic ether of molecular formula C9H10O Its NMR spectrum is shown in Figure 16 10 Oxidation of the compound with sodium dichromate and sulfunc acid gave 1 2 benzenedicarboxylic acid What is the compound d... [Pg.700]

Fig. 21-9 Bank of tube heal exchangers for sulfunc acid with plug-in cathodes. Fig. 21-9 Bank of tube heal exchangers for sulfunc acid with plug-in cathodes.
Apply sample solubon and spray with 10% car- [101] bon disulfide m ethyl acetate Place TLXZ plate m carbon disulfide vapor for 30 mm, then spray with methanol — sulfunc acid (1-1-1) Heat to 100°C for 10 mm and chromatograph the isothio-cyanates so formed... [Pg.75]

Elimination of water with the aid of sulfunc acid [9 14] and formation of the corresponding monoterpene hydrocarbons... [Pg.76]

The synthesis of fluoroalkyl and chloroalkyl fluoromethyl ketones is achieved by oxidation of the corresponding alcohols by sodium dichromate and sulfunc acid in methylene chlonde in the presence of a phase transfer catalyst [49] (equation 45)... [Pg.336]

The enol ether formed by a reaetion of benzyl alcohol with perfluorocyclo-pentene is transformed on heating in the presence of concentrated sulfunc acid into a fluorinated enol [25] (equation 22)... [Pg.450]

Conjugated terminal fluoroenynes add water to the double bond at -5 C to form a-fluoro allemc acid fluondes. At 20 C, the allenic acid fluorides and concentrated sulfunc acid give y- and 8-laaones (equation 1) In the presence of concentrated sulfuric acid, conjugated nontermmal fluoroenynes add water to the triple bond and then to the double bond to form a-fl uoro-P-diketones and exocyclic a-fluoroenones [/] (equation 2). [Pg.757]

Tnfluoroacetic anhydnde in a mixture with sulfuric acid is an efficient reagent for the sulfonylation of aromatic compounds [44] The reaction of benzene with this system in nitromethane at room temperature gives diphenyl sulfone in 61% yield Alkyl and alkoxy benzenes under similar conditions form the corresponding diaryl sulfones in almost quantitative yield, whereas yields of sulfones from deactivated arenes such as chlorobenzene are substantially lower [44] The same reagent (tnfluoroacetic anhydride-sulfunc acid) reacts with adamantane and its derivatives with formation of isomeric adamantanols, adamantanones, and cyclic sultones [45]... [Pg.949]

The redox solution for 0 095 M fluonde ion solution is prepared by dissolving 12 7 g of cenum(IV) ammomum sulfate m 200 mL of disnUed water and 14 mL of 18 M sulfunc acid CenumfUI) sulfate (2 8 g) is added, and the solution is diluted to I L... [Pg.1026]

A very significant mortality in Western countries is associated with cardiac arrhythmias Consequently an intensive search is underway for agents to combat this condition - particularly for compounds with an unusual mode of action A class Ic (local anesthetic-like) agent of interest in ihis context is Indecainide (50) One of several routes to this compound covered by patents begins with sodium amide mediated alkylation of 9 cyanofluorene (48) with 3 isopropylamino-1 chloropropane to give amine 49 The synthesis concludes by partial hydrolysis of the nitnle func tion to a carboxamide linkage with sulfunc acid to produce indecainide (50) [15]... [Pg.1410]

Johan Gottlieb Gahn, 1745-1818. Swedish chemist, mineralogist, and mining engmeer Manufacturer of copper, sulfur, sulfunc acid, and red ochre Discoverer of metallic manganese... [Pg.169]

Fuming sulfunc acid is a mixture of H2S04 anci SO, 2 500 g sample of fuming sulfunc acid requires 47 53 ml of 1 1513 M NaOH for titration What is the percentage of S03 in the sample9... [Pg.201]

Baumfi scale -for sulfunc acid [SULFURIC ACID AND SULFURTRIOXIDE] (Vol 23)... [Pg.93]

When treated with fuming sulfunc acid and then with water, decafluoro-cyclohepta-1,4-diene gives hexafluoro-l,5-dihydroxy-8-oxabicyclo(3 2 l)octan-3-one rather than ortafluorocyclohepta-2,6-dienone, which is a probable intermediate [28] (equation 31)... [Pg.430]

See other pages where Sulfunc acid is mentioned: [Pg.184]    [Pg.226]    [Pg.246]    [Pg.386]    [Pg.387]    [Pg.420]    [Pg.468]    [Pg.478]    [Pg.513]    [Pg.659]    [Pg.659]    [Pg.659]    [Pg.746]    [Pg.963]    [Pg.964]    [Pg.1023]    [Pg.1199]    [Pg.988]    [Pg.140]    [Pg.626]    [Pg.233]    [Pg.728]    [Pg.180]    [Pg.306]    [Pg.306]    [Pg.713]    [Pg.800]   
See also in sourсe #XX -- [ Pg.364 , Pg.365 , Pg.366 ]

See also in sourсe #XX -- [ Pg.460 ]



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