Preparation of 2,2'-bi-1H-imidazole from glyoxal and an ammonium salt, useful as a chelating agent for metals

摘要

Preparation of 2,2'-bi-1H-imidazole by reaction of glyoxal with an excess of an ammonium salt. Preparation of 2,2'-bi-1H-imidazole (I) by reaction of glyoxal with an excess of an ammonium salt N+H4A-.