Methyltaurine

A-Lauroyl-A-methyltaurine sodium salt (sodium A-decanoyl-A-methy-2-aminoethane sulfonate) [4337-75-1 ] M 343.5, pKEst L5. Prepared from methyldecanoate (at 180° under N2) or decanoyl chloride and sodium A-methylethane sulfonate and purified by dissolving in H2O and precipitating by addition of Et20. Decomposes on heating. [Desseigne and Mathian Mem Services Chim Etat Paris 31 359 1944, Chem Abstr l 705 1947.]... 

Also via the route of the acid chloride followed by reaction with taurine or methyltaurine solution in water under the Schotten-Baumann reaction are created the taurides and methyltaurides of the ether carboxylic acids [44] ... 

Similarly, a sulfonated sulfonamide can be prepared from A-methyltaurine [17] ... 

Superior passive stabilised diazo compounds are afforded by the diazoamino compounds (triazenes) that arise by reaction of diazonium salts with a variety of secondary amines [114]. Typically, sarcosine (CH3NHCH2COOH), which gives products based on structure 4.114, as well as N-methyltaurine (CH3NHCH2CH2SO3H) and N methylaniline-4 Sulphonic acid,... 

V-Lauroyl-V-methyltaurine sodium salt (sodium V-decanoyl-V-methylethane sulphonate)... 

MMA ranks second in terms of demand. It is mainly used in the to make dimethyl urea and N-methylpyrrolidone, as well as for methyltaurine which is employed in CO2 washes or as a raw material for detergents. Other uses include... 

PHENYLAZO-2,6-DIAMINOPYRIDINE HYDROCHLORIDE see PDC250 P-PHENYLAZO-a,a -DIA- nNOPYRIDINE HYDROCHLORIDE see PDC250 PHENYLAZO-a,a -DIAMINOPYRIDINE MONOHYDROCHLORIDE see PDC250 N-PHENYLAZO-N-METHYLTAURINE SODIUM SALT see PEJ250... 

Sodium salt, N-methylaminoethane sodium sulfonute, sodium N-methyltaurate. Usually sold as an aq soln oontg 35% of N-methyltaurine sodium salt. d ° 1.21. At its freezing point (-28° ) the soln becomes a suspension of crystals. Also available as a 65% soln. 

Selectivity differences for the alkane sulfates and sulfonates are not particularly sensitive to changes in the identity of the counterion or the alkyl chain length [204,209]. Sodium dodecyl sulfate is representative of this group. On the other hand, the perflu-orooctanesulfonate and N-alkyl-N-methyltaurine surfactants afford different selectivity to sodium dodecyl sulfate [197,202,208]. Lithium perfluorooctanesulfonate has differ-... 

Figure 8.5. Plot of the system constants (solvation parameter model) against composition for a mixed micelle electrolyte solution containing 50 mM sodium N-dodeconyl-N-methyltaurine and different amounts of the non-ionic surfactant Brij 35 (polyoxyethylene [23] dodecyl ether) (Left). Plot of the system constants for a mixed micelle buffer containing 50 mM sodium N-dodecanoyl-N-methyltaurine and 20 mM Brij 35 against the volume fraction of acetonitrile added to the electrolyte solution (Right). System constants m = difference in cavity formation and dispersion interactions r = difference in electron lone pair interactions s = difference in dipole-type interactions a = difference in hydrogen-bond basicity and b = difference in hydrogen-bond acidity. (From ref. [218] Royal Society of Chemistry).

Course tuning selectivity Surfactant Choose surfactants of different selectivity (see Table 8.5) Sodium cholate (75 mM) Sodium N-Dodecanoyl-N-methyltaurine (50 mM) Tetradecyltrimethylammonium bromide (50 mM) with reverse polarity Other suitable surfactants ... 

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