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Sulfonic acid amides heterocyclics

Benazolin heterocyclic nitrogen, benzothiazoline, carboxylic acid Bendiocarb carbamate Benefin see Benfluralin Benfluralin dinitroaniline Benfuracarb carbamate, benzofuran Benfuresate benzofuran, sulfonate Benodanil amide... [Pg.1005]

POLYAMIDE. Separations are based on formation of hydrogen bonds between the functional groups of the sample (phenols, amino acid derivatives, heterocyclic nitrogen compounds, carboxylic and sulfonic acids) and the carbonyl oxygen of the amide group, as well as a general reversed-phase partition mechanism (water is the weakest solvent). Available as two polycondensation products, polyundecanamide (PA 11) and polycaprolactam (PA 11). [Pg.481]

Oxine-copper heterocyclic nitrogen, quinoline Oxolinic acid heterocyclic nitrogen, quinoline Oxycarboxin oxathiin, amide, sulfone Oxydemeton-methyl phosphoro organic, phosphoro thioate... [Pg.1010]

The nitration of active methylene compounds by the action of a nitrate ester under basic conditions has been found to be a general and convenient method for introducing a nitro group alpha to the activating group. By choosing the appropriate base-solvent system, we have been successful in applying the reaction to ketones, nitriles, amides, carboxyl esters, sulfonic esters, sul-fones, substituted toluenes, and heterocyclics. Usually the nitration under acidic conditions fails with these classes of compounds. [Pg.160]

The amide-H.ammonia system made it possible to extend the alkyl nitrate nitration to weak acidic systems such as aliphatic carboxylic esters, alkyl sulfonates, to aromatics with electron withdrawing groups and to heterocyclics. [Pg.168]

The weakest bond in a polymer chain determines the overall thermal stability of the polymer molecule. The aliphatic carbon-carbon bond has a relatively low bond energy (see Table 5.1). Oxidation of alkylene groups is also observed during prolonged heating in air. Thus the weak links to be avoided are mostly those present in alkylene, alicyclic, unsaturated, and nonaromatic hydrocarbons. On the other hand, the functions proven to be desirable are aromatic (benzenoid or heterocyclic) ether, sulfone, and some carboxylic acid derivatives (amide, imide, etc.). Aromatic rings in the polymer chain also give intrinsically stiff backbone. [Pg.544]

In the first steps, ester condensation to diketo acid, preparadon of oxime and cyclization are completed under standard conditions. Ester ammonolysis is followed by Hofmann rearrangement of amide to heterocyclic amine. Sulfonation of amine under Schotten-Baumann conditions, in a water-organic solvent mixmre, is based on an interesting trick hydroxide is added at a controlled rate to scavenge the hydrochloric acid formed in sulfonation and to maintain the neutral pH of the aqueous solution of heterocyclic amine as a stronger nucleophile than water, avoiding the hydrolysis of sulfonyl chloride ... [Pg.160]


See other pages where Sulfonic acid amides heterocyclics is mentioned: [Pg.176]    [Pg.341]    [Pg.57]    [Pg.126]    [Pg.176]    [Pg.57]    [Pg.176]    [Pg.168]    [Pg.326]    [Pg.165]    [Pg.1965]    [Pg.176]    [Pg.7]    [Pg.1120]    [Pg.370]    [Pg.354]    [Pg.390]    [Pg.373]    [Pg.1137]    [Pg.1009]    [Pg.92]    [Pg.445]    [Pg.105]    [Pg.445]    [Pg.22]    [Pg.175]    [Pg.134]    [Pg.349]    [Pg.445]    [Pg.200]    [Pg.167]    [Pg.318]    [Pg.105]    [Pg.1025]    [Pg.419]   
See also in sourсe #XX -- [ Pg.31 , Pg.366 ]




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Amide sulfon

Amides sulfonated

Heterocyclic acids

Sulfonic acid amides

Sulfonic acid amides sulfonates

Sulfonic acid amides sulfones

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