Thiosulfonic acid, 5-

S-Alkylthiosulfates S-Arylthiosulfates Sulfinylsulfones Thiosulfuric acids and esters Thiosulfonic acids 5... 

Synthesis. The method of synthesis for Methylene Blue described in reference 14 is stiU the stepwise method of choice for thiazine dyes. /V,/V-Dimethy1-y-pheny1ene diamine [99-98-9], CgH22N2, reacts with sodium thiosulfate [7772-98-7] to form the thiosulfonic acid which condenses with /V, /V-dimetby1 ani1 ine [121 -69-7], CgH N, in the presence of sodium dichromate [10588-01-9] to the indamine, then with copper sulfate [18939-61 -2] and sodium dichromate to Methylene Blue (26). 

Thio-schwefelsaure, /. thiosulfuric acid, -sul-fatlosung, /. ihiosulfate solution. -sulfo-saure, /. thiosulfonic acid, -verbindung, /. thio compound, -zinnsaure, /. thiostannic acid. 

Sulfenyl chlorides react with zincalkyl (or -aryl) sulfinates and also with sodium benzene sulfinate to yield the corresponding esters of thiosulfonic acid 13, 111, 161) ... 

Detailed spectroscopic analysis of the 3-hydroxytetrahydrothiopyran 1,1-dioxide 5, an oxidative degradation product of hedathiosulfonic acid A isolated from the deep-sea urchin Echinocardium cordatum, provided invaluable data for the determination of the stereostructure of the parent thiosulfonic acid <2002T6405>. 

The beaker is placed on a felt pad, and a tube is arranged for blowing in steam. With thorough stirring, Solution I is added at room temperature, followed by Solution II, and 2 seconds later by one-third of Solution III (equivalent to 19 grams of sodium bichromate). The temperature of the mixture is raised to 40°C. in the course of 1 minute by the introduction of dry steam, and then Solution IV is added followed by the remainder of Solution III. The mixture is then heated rapidly to 70°. The solution becomes dark greenish blue in color due to the formation of the thiosulfonic acid of Bindsehedler green. When the temperature reaches 70°, the slurry (V) is added and the temperature is raised to 85°. 

Methylene blue from Bindschedler green-thiosulfonic acid. 312... 

C>,C -Dialkylthiophosphoric acids, e.g. the 2-ethylhexyl derivative 114 R = CH2CH(Et)(CH2)3Me, react with chlorosulfonic acid (one equivalent) in liquid sulfur dioxide at —23 to —17 °C to give the corresponding thiosulfonic acid 115 (Equation 44). ... 

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