Templat-Reaktionen II. Herstellung von tricyclischen und tetracyclischen Metallkomplexen aus aliphatischen Diaminen und Phenylazo-malondialdehyd-Derivaten
✍ Scribed by François A. L'Eplattenier; André Pugin
- Publisher
- John Wiley and Sons
- Year
- 1975
- Tongue
- German
- Weight
- 900 KB
- Volume
- 58
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
Template‐Reactions II. Syntheses of tricyclic and tetracyclic metal complexes from aliphatic diamines and phenylazo‐malondialdehyde‐derivatives
A template synthesis of metal complexes with 14‐ and 16‐membered macrocycles 6 resp. 10 has been devised. These compounds are obtained in high yield by the condensation of aliphatic 1,2‐or 1,3‐diamines with phenylazo‐malon‐dialdehydes in the presence of divalent metal ions such as Cu(II) and Ni(II). This is the first reported one‐step synthesis of tetraaza‐annulenes with aliphatic diamines. The formation of the intermediate tricyclic complexes 5 and 9, obtained either by a template or a nontemplate synthesis, is also described. Ring closure with diamines leads again to 6 and 10 or to asymmetric tetraaza‐macrocyclic systems such as 7 or 11.