3-Thiapentanedioic acid

A number of cyclic imides, such as uracil (11), can be used in conjunction with a nitrogenous base.64 These compounds are added to hydroxylamine developer formulations. Several thioether-substituted 2,4- or 4,6-dihydroxypyrimidines, such as (12), are useful.65 Thioether-con-taining carboxylic acids can be used in the preparation of electrically conducting transferred silver images. These include 3-thiapentanoic acid, 3-thiapentanedioic acid and 3,6-dithiaoctanedioic acid.66 Mercaptobenzoic acids are used alone or with a cyclic imide solvent to produce lithographic... 

Dicarbonyl compounds can be made to cyclize with esters of 3-thiapentanedioic acid 21 under base catalysis (Hinsberg synthesis). This widely applicable and high-yield synthesis leads to substituted thiophene dicarboxylic esters 22 via a double aldol condensation, with the two CH2 groups of 21. Hydrolysis and decarboxylation of the esters yield 3,4-disubstituted thiophenes 23 [23] ... 

Thermus aciuaticus ribonucleotide reductase, 642 3-Thiapentanedioic acid photography... 

In the early stage of thiepin chemistry, Scott26) reported the synthesis of benzo-[phthalaldehyde with diethyl 3-thiapentanedioate followed by hydrolysis. Shortly after Scott s synthesis, Dimroth et al.27) found that the ester 34a was thermally more stable than the free acid... 

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