Ethyl-p-toluene sulfonate

Dinitro-ethyl-p-toluene sulfonate 6 E333-E334... 

Aromatic esters and sulfonates (benzyl acetate, ethyl p-toluene-sulfonate) accumulator column 6 46-87 69 7-17 12 d... 

It should be mentioned at this point that the ease of alkylation of the isotrithiones to isotrithionium salts (251) is not due to any specific stability of the 2-methylmercapto-1,3-dithiolium ion, in which the C=C double bond takes part in the mesomeric system and contributes a pair of it electrons to the aromatic sextet. As was recently shown by Wizinger et aZ.,138 Gompper,157 and Mayer and Schafer158 the dihydroisotrithiones (257) can also be readily alkylated by heating with alkyl halides, dimethyl sulfate, or ethyl p-toluene-sulfonate. Results obtained so far indicate that the reactivity of these dihydroisotrithionium salts towards C, 0, N, and S bases corresponds closely to that of the isotrithionium salts. ... 

Dinitro-ethyl-p-toluene Sulfonate or 3,5 Dinitro-4-methyl-ethy[benzene Sulfonate,... 

Monoalkylation of malonic ester proceeds much more readily than alkylation of simple esters. The enolate is formed from diethyl malonate and alcoholic sodium ethoxide solution. Alkylation is effected in good yield by the use of primary bromides, diethyl sulfate, or ethyl p-toluene-sulfonate. In addition to the simpler primary alkylmalonates listed in Table 51, many higher members have been prepared. The list includes substituted malonates made from diethyl malonate and the following... 

Schafer the dihydroisotrithiones (257) can also be readily alkylated by heating with alkyl halides, dimethyl sulfate, or ethyl p-toluene-sulfonate. Results obtained so far indicate that the reactivity of these dihydroisotrithionium salts towards C, O, N, and S bases corresponds closely to that of the isotrithionium salts. ... 

Dynamic Range of the SCD. Calibration curves for the sulfur compounds were plotted as peak areas vs ng compound injected. The upper limit of the dynamic linear range for all sulfur compounds with the exception of ethyl-p-toluene sulfonate, was ca 200 ng of die compound injected. The upper limit for ethyl-p-toluene sulfonate was ca. 1000 ng. 

Dynamic Range of the AED. The calibration curves for all sulfur compounds on the AED were obtained as plots of peak area vs ng of compound injected. The calibration curves for all sulfur compounds (except ethyl-p-toluene sulfonate and phenyl sulfone) were linear to an upper limit of 1200 to 1550 ng of compound injected. Calibration curves for the latter two compounds were linear even at 2000 ng of compound injected (the maximum limit used in this study). Figure 5 shows the dynamic ranges for both butyl mercaptan and phenyl sulfone on the AED. 

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