Sulphonamides. III. Disulphonyl Derivatives of some N-Heterocyclic Amines.

Various disulphonyl derivatives of 2-aminopyridine and 2-aminothiazole are described. It is proved that the two sulphonyl groups are on two different nitrogens ; a similar conclusion is reached for dibenzoyl-2-an~inopyridme. Several of the disulphonyl compounds exist in two forms which are regarded as geometrical isomers.