English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Preparation of new cyclic quaterbenzoxazole and -imidazole derivatives

MPS-Authors

Tauer,  E.
Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Tauer, E. (2002). Preparation of new cyclic quaterbenzoxazole and -imidazole derivatives. Synthesis-Stuttgart, (6), 723-725. Retrieved from https://www.thieme-connect.de/ejournals/pdf/synthesis/doi/10.1055/s-2002-25771.pdf.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0012-F3D6-0
Abstract
The new cyclic quaterbenzoxazole 5 and -imidazole 8 have been synthesized by cyclization of 3-amino-2-hydroxybenzamide (4) and the ammonium salt of 2,3-diaminobenzoic acid (7), respectively, with polyphosphoric acid. Both compounds represent a new heterocyclic nine ring system, which can be built up from four identical (or different) benzo-x-azoles in a cyclic arrangement.