1.2.4- Thiadiazolediazonium

Thiadiazolediazonium fluoroborates s. 17, 351 Glucose sodium hydroxide Cyclic azo compounds from dinitro compounds... 

Boron fluoride Diazonium fluoroborates from amines and N-nitrosamines 1,2,4-Thiadiazolediazonium fluoroborates... 

The high reactivity of the 1,2,4-thiadiazolediazonium salts permits extension of diazonium salt chemistry by new reactions. F. e. and reactions s. A. Ginsberg and J. Goerdeler, B. 94, 2043 (1961). 

Bis-(N-methyl-N-nitroso)terephthalamide and N,N -dimethyl-N,N -dinitrosooxamide are convenient precursors of diazomethane. From N,N -dinitrosooxamides, other diazoalkanes have been prepared as well . Improved yields in the Schiemann reaction have been obtained with hexafluorophosphoric acid . Reaction of dia-zonium salts with nickel carbonyl and acetic acid may provide a single-step alternative to the Sandmeyer reaction, especially where the nitriles from the latter contain other groups susceptible to hydrolysis . The highly reactive 1,2,4-thiadiazolediazonium salts have permitted an extension of diazonium salt chemistry by new reactions . 

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