ISSN:
1573-8353
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Chemie und Pharmazie
Notizen:
Abstract The corresponding 2-(o-hydroxystyryl)benzimidazoles were obtained by the condensation of aromatic o-hydroxyaldehydes with 5-nitro- and 5,6-dinitro-1,2,3-trimethylbenzimidazolium salts. It was established that derivatives of salicylaldehyde and 5-methoxysalicylaldehyde are capable of intramolecular cyclization in absolute, aprotic solvents to form spiro (benzimidazoline-2,2′-[2H]chromene) derivatives.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF00475721