Dinaphthyl sulfones

Schwarzbauer J, Franke S (2003b) Identification and quantitation of dinaphthyl sulfones as contaminants in particulate matter of the Elbe river, Germany.Part VI of organic compounds as contaminants of the Elbe river and its tributaries. Chemosphere 51, 973-981. 

Naphthalene. Early studies showed that the action of slightly less than one equivalent of chlorosulfonic acid on a 10% solution of naphthalene 40 in carbon disulfide gives the 1-sulfonic acid and a little of the 1,5-disulfonic acid, but none of the 2-sulfonic acid was isolated. Naphthalene has also been reacted with chlorosulfonic acid in nitrobenzene and in nitrotoluene at 20-35 °C. With an equimolar quantity of the reagent, a mixture of the mono-sulfonic acids and dinaphthyl sulfones was formed at 6°C, the 1,1-sulfone predominated, but at 170 °C, the 2,2 -isomer was the major product. The reaction has also been extensively studied at low temperatures (—35 to 0 °C). ... 

Information on microviscosity is obtained by studying the excimer forming capabilities of suitable fluorescent probes. The excimer, which is a complex of a ground state and excited state monomer, has a characteristic emission frequency. The intramolecular excimer formation for example, of 1,3-dinaphthyl propane (DNP), is a sensitive function of the microviscosity of its neighborhood. This property, expressed as the ratio of the excimer and monomer yield (/e//m) for DNP, has been determined for dodecyl sulfonate solutions and its adsorbed layer for the various regions of the adsorption isotherm (Fig. 4.18) (Somasundaran et al., 1986). Comparing the ratios thus obtained to the /e//m values of DNP in mixtures of ethanol and glycerol of known viscosities, a microviscosity value of 90 to 120 cPs is obtained for the adsorbed layer in contrast to a value of 8 cPs for micelles. The constancy of microviscosity as reported by DNP is indicative of the existence of a condensed surfactant assembly (solloids) that holds the probe. 

Synonyms Dinaphthalene-methane sulfonate sodium salt Naphthalene-formaldehyde sulfonate dimer Sodium dinaphthyl methane sulfonate Sodium methylene dinaphthalene sulfonate Emprkal CjiH NajOeSj Properties M.w. 472.45... 

Sodium dinaphthyl methane sulfonate. See Sodium dinaphthalene methane sulfonate... 

Sodium dinaphthyl methane sulfonate. See Sodium dinaphthalene methane sulfonate Sodium 4-(2,4-dinitroanilino) diphenylamine-2-sulfonate. See Acid orange 3 Sodium dinonyl sulfosuccinate CAS 63217-13-0 EINECS/ELINCS 221-820-7 Properties Anionic... 

Method for Producing High-Molecular Polyarylenesulfideketone. US Patent 47182122. Ogawa, T., Marvel, C. S. (1985). Polyaromatic Esterketones and Ester-Ketone-Sulfones having Various Hydrophilic Groups. J. Polym. Sci. Polym. Chem. Ed, 25(4), 1231-1241. Percec, V. Nava, H. (1988). Synthesis of Aromatic Polyesters by Scholl Reaction 1, Poly( 1,1-Dinaphthyl Ester Phenyl Ketones)./. Polym. Sci. A, 26(3), 783-805. 

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