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1H-1,2,4-Triazol-4-ium (3,4-dichloro-phen-yl)methane-sulfonate

Ling Zhang1, Guri L V Damu, Jing-Song Lv

  • 1Laboratory of Bioorganic & Medicinal Chemistry, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, People's Republic of China.

Acta Crystallographica. Section E, Structure Reports Online
|January 20, 2012
PubMed

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Diazonium Group Substitution: –OH and –H01:19

Diazonium Group Substitution: –OH and –H

Nitrous acid, a weak acid, is prepared in situ via the reaction of sodium nitrite with a strong acid under cold conditions. This nitrous acid prepared in situ reacts with primary arylamines to form arenediazonium salts. Such reactions are known as diazotization reactions. As shown in Figure 1, the formation of arenediazonium salts begins with the decomposition of nitrous acid in an acidic solution to give nitrosonium ions.