C. Ang
1962
Citations
0
Influential Citations
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Citations
Journal
Acta Chimica Sinica
Abstract
2,3-Dimercaptosuccinic acid-S_2~(35) has been synthesized as follows: Sodium sulphide S~(35) (Ⅰ) was oxidized with iodine to give sulphur-S~(35) (Ⅱ). The latter was convertcd into phosphorous pentasulphide-S_5~(35) (Ⅲ) by the action of red phosphorous. Interaction of Ⅲ and acetic acid gave thiolacetic acid-S~(35) (Ⅳ). 2,3-Bis-acetylthiosuccinic acid-S_2~(35) (Ⅴ) was obtained by the addition of compound Ⅳ to acetylenedicarboxylic acid. Upon hydrolysis of V the desired 2,3-dimercaptosuccinic acid-S_2~(35) (Ⅵ) was obtained. This method has been found to be satisfactory for the synthesis with the advantages of convenience and safety in handling.