Optimization, Scope and Limitations of the Synthesis of 5-Aminoindolizines from Oxazolo[3,2-a]pyridinium Salts.
β Scribed by P. Tielmann; C. Hoenke
- Publisher
- John Wiley and Sons
- Year
- 2006
- Weight
- 23 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0931-7597
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract 3βPhenylimidazo[1,5β__a__]pyridinium salts are easily prepared in excellent yield by thermolysis of phenylchlorodiazirine in the presence of 2βpyridyl Schiff bases (2βPyrβCH=NR, where R is an aromatic or alkyl group). When the reaction is conducted in an alkane solvent, the salts precip
## Abstract Formation of the four title compounds has been found to be strongly dependent on substituents: 1,2,3βTriazolium salts **6** do not arise from nitrilimines **2** that have an electronβacceptor attached to either the __C__β or the __N__βphenyl group. Likewise __tert__βbutyl and aryl isocy