New dry arenediazonium salts, stabilized to an exceptionally high degree by the anion of o-benzenedisulfonimide
Arenediazonium o-benzenedisulfonimides 3 (20 examples, yield >90%) were prepared in the dry state by diazotization of aromatic amines with (-pentyl nitrite and o-benzenedisulfonimide in glacial acetic acid or formic acid at 0-5°C. Unlike most diazonium salts in the dry state, salts 3 are very highly stable.
Barbero, Margherita,Crisma, Marco,Degani, Lacopo,Fochi, Rita,Perracino, Paolo
p. 1171 - 1175
(2007/10/03)
ACID-BASE CHARACTERISTICS OF NAPHTHALENEDIAZONIUM SALTS
On the basis of spectral and synthetic methods it was demonstrated that the acid-base equilibrium in naphthalenediazonium salts and their disulfo derivatives in an aqueous medium is complicated by the formation of hydroxyazo dyes.The thermodynamic acidity
Bagal, I. L.,Snegireva, L. V.,El'tsov, A. V.
p. 1507 - 1516
(2007/10/02)
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