Formamidine disulphides

The resulting formamidine disulphide acts as a gold oxidant,60... [Pg.766]

Acylphosphonic diesters take part in condensations very often through the participation of their enol tautomers with formamidine disulphide, for example, the 1,3-thiazoles 281 can be obtained analogues of such phosphonic acid products, e.g. 282, are obtainable from (2-oxoalkyl)phosphonic diesters with the same reagents. ... [Pg.555]

With a low concentration of thiourea, 10 mol 1" the product of substitution is (NHa)2CSNH2+. In the presence of higher concentrations of thiourea, 10 mol 1", formamidine disulphide is a product ... [Pg.104]

The kinetics and mechanism of the oxidation of thiourea and AA -dialkylthioureas to their respective formamidine disulphide cations have been investigated. Details of product characterization have been provided. The observed rate law is of the form (tu = thiourea)... [Pg.124]

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