Acids benzenesulfonic acid

Benzene Sulfuric acid Benzenesulfonic acid Water... [Pg.478]

Bromo-4-hydroxy- 4-Bromo-2-hydroxy-benzenesulfonic acid benzenesulfonic acid... [Pg.376]

Pipecolic acid 2-Piperidinecarboxylic acid Sulfanilic acid Benzenesulfonic acid, 4-amino-... [Pg.47]

Monosubstituted benzenes are named as derivatives of benzene or by common names such as toluene, benzaldehyde, benzoic acid, benzenesulfonic acid, phenol, and aniline. [Pg.133]

A 4-11-00-00027 (Beilstein Handbook Reference) AI3-15297 Benzene sulphonic acid Benzenemonosulfonic acid Benzenesulfonic acid Benzenesulphonic acid Besylic acid BRN 0742513 CCRIS 4595 EINECS 202-638-7 HSDB 2642 Kyselina benzensulfonova Phenylsulfonic acid. Used in manufacture of phenol. Needles mp = 65° km = 236,252, 258, 262, 265, 269 nm (e = 731, 218, 273, 308, 265, 253, MeOH) insoluble in EtzO, CS2, slightly soluble in CsHe, soluble in AcOH, very soluble in H2O, EtOH. [Pg.58]

Beilstein Handbook Reference) 4-Nitro-2-toluenesulfonic acid 4-Nitrotoluene-2-sulphonic acid 5-Nitro-2-methylbenzenesulfonic acid 5-NitroK)-toluenesulfonic acid Benzenesulfonic acid, 2-methyl-5-nitro- BRN 2216176 EINECS 204-445-3 HSDB 5470 Kyselina 4-nitrotoluen-2-sulfonova p-Nitrotoluene-o-sulfonic xid NSC 9580 Pntos. [Pg.58]

AI3-15414 Aniline-4-sulfonic acid Aniline-p-sulfonic acid Aniline-p-sulphonic acid Benzenesulfonic acid, 4-amino- CCRIS 4576 EINECS 204482-5 HSDB 5590 Kyselina sulfanilova NSC 7170 p-Aminobenzenesulfonic acid Sulfanilic acid Sulfanilsaure Sulphanilic acid. Used in dyestuffs, organic synthesis, medicine. [Pg.592]

Benzenesulfonamide, Ar,AT-dibromo-4-methyl-(TsNBr2) bromohydrination with, 287 Benzenesulfonamides reductive cleavage, 247 synthesis of drugs, 301, 307-308 Benzenesulfonic acids. See Sulfonic acids Benzenesulfonic acid, 4-methyl-, esters (tosylates) alkyl a-synthons, 16, 24, 47, 93 fragmentation of, 89 rearrangement of, 32 reductive cleavage of, 114, 202-203 —, 4-methyl-, hydrazide (tosylhydrazine) hydrazones of fragmentation, 89 reduction, 109... [Pg.202]

Maximum reaction rate is attainable with the strongest reagent, namely, SO3, and its use is increasing. As a consequence of the increased production of sulfonates, there is a compelling interest in more efficient and more rapid and especially continuous processes. The use of SO is subject to limitations, however, as noted in Table 7-3. It reacts virtually instantaneously with many compounds, for example, hydrocarbons or alcohols, even at low temperatures. In other cases, however, it first forms a complex with the compound being sulfonated, and rearrangement to the desired sulfonic acid requires time and heat, as with benzoic acid, benzenesulfonic acid, and pyridine. [Pg.344]

Neutralization of the sodium phenoxide to release the phenol [Eq. (4)] may be done by carbon dioxide, mineral acids, benzenesulfonic acid, or preferably with the SO liberated when the benzenesulfonic acid is treated with the by-product NajSOs to form the required sodium benzenesulfonate. Usually, some sulfuric acid must be finally added to ensure complete neutralization. The phenol containing some water separates out as an upper layer over an aqueous solution containing the appropriate sodium salt. The phenolic layer is separated and distilled in vacuo, while the aqueous layer, which still contains some phenol, goes back to the operating cycle. [Pg.798]

Toluene Aniline Phenol Benzoic acid Benzenesulfonic acid... [Pg.313]

Benzenesulfonic acid, dimethyl-. See Xylene sulfonic acid Benzenesulfonic acid, dimethyl-, ammonium sah. See Ammonium xy-... [Pg.988]

Benzenesulfonic acid, dodecyl-. See Dodecylbenzenesulfonic acid Benzenesulfonic acid, dodecyl-, compd. with 2,2, 2"-nitritotris (ethanol) (1 1). See TEA-dodecylbenzenesulfonate Benzenesulfonic acid, dodecyl-, sodium salt. See Sodium dodecylben-zenesulfonate... [Pg.988]

Benzenesulfonic acid, hydroxy-. See Phenolsulfonic acid Benzenesulfonic acid, oxybis-, dihydrazide. See 4,4-Oxybis (benzene-sulfonylhydrazide)... [Pg.988]

EINECS/ELINCS 248-289-4 271-807-5 Synonyms ABS Alkylbenzenesulfonic acid Benzenesulfonic acid, dodecyl- DDBSA n-Dodecylbenzenesulfonic acid Lauiylbenzenesul-fonic acid... [Pg.1097]

Anilino-o-sulfonic acid Benzenesulfonic acid, o-amino- Orthanilic acid o-Sulfanilic acid... [Pg.213]

Benzenesulfonic acid, dodecyl-. See Dodecylbenzenesulfonic acid Benzenesulfonic acid, dodecyl-, ammonium salt. See Ammonium dodecylbenzene sulfonate... [Pg.434]

See p-Tolylsulfonyl hydrazine Benzenesulfonic acid, 4-methyl-, sodium salt. See Sodium toluenesulfonate Benzenesulfonic acid, mono-CI 0-14-alkyl derivs.. See CIO-14 alkyl benzenesulfonic acid Benzenesulfonic acid, mono-CI 0-14-alkyl derivs., compds. with triethanolamine. See TEA-C10-14 alkyl benzenesulfonate Benzenesulfonic acid, nonyl-, sodium salt. See Sodium nonylbenzene sulfonate Benzenesulfonic acid, oxybis-, dihydrazide. See 4,4 -Oxybis (benzenesulfonylhydrazide) Benzenesulfonic acid, 3-((4-(phenylamino) phenyl) azo)-, monosodium salt. See Acid yellow 36... [Pg.435]

Benzenesulfonic acid, 3,3 -[sulfonylbis (2-nitro-4,1-phenylene) imino] bis [6-(phenylamino)-, disodium salt. See Acid brown 13 Benzenesulfonic acid, tridecyl-. See Tridecylbenzene sulfonic acid Benzenesulfonic acid, tridecyl-, compd. with 2,2, 2 -nitrilotris [ethanol] (1 1). See TEA-tridecylbenzenesulfonate Benzenesulfonic hydrazide Benzenesulfonohydrazide. See Benzenesulfonyl hydrazide Benzenesulfonylamide. See Benzenesulfonamide Benzenesulfonyl hydrazide CAS 80-17-1 EINECS/ELINCS 201-255-2 UN 2970 (DOT)... [Pg.435]

In Figure 11.2, a sulfonate ester is the leaving group, and reaction with a nucleophile breaks the weaker C-0 bond to generate a sulfonate anion (26). This anion is resonance stabilized and quite stable, which means it is relatively unreactive as a nucleophile. The combination of a weak C-0 bond and the stability and poor reactivity of the sulfonate anion makes sulfonate esters good leaving groups. The most common sulfonate esters (see Chapter 20, Section 20.11) are those derived from methanesulfonic acid, benzenesulfonic acid, or 4-methylbenzenesulfonic acid. Formation of sulfonate esters from sulfonic acids or sulfonyl chlorides will be discussed in Section 11.7.3 and in Chapter 20,... [Pg.519]

How much the retention of an analyte changes with pH depends both on the degree of ionization as well as on structural parameters. Sulfonic adds are very acidic. Benzenesulfonic acid has a pJQ of 0.7. The pK values of aliphatic sulfonic acids are higher. Aliphatic carboxylic adds commonly have pJQ values around 4.5 to 5. Aromatic carboxylic acids, on the other hand, are more addic. Sulfonamides are weakly acidic. The pK, values of phenols can be found in the mildly alkaline pH range (phenol pfC, = 9.99) and depend strongly on the substituents on the aromatic ring. [Pg.83]

In Summary Nitration of benzene requires the generation of the nitronium ion, N02, which functions as the active electrophile. The nitronium ion is formed by the loss of water from protonated nitric acid. Sulfonation is achieved with fuming sulfuric acid, in which sulfur trioxide, SO3, is the electrophile. Sulfonation is reversed by hot aqueous acid. Benzenesulfonic acids are used in the preparation of detergents, dyes, compounds containing leaving groups, and sulfa drugs. [Pg.674]

Benzoic acid, Benzenesulfonic acid, Nicotinic acid... [Pg.472]

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