6574-83-0Relevant academic research and scientific papers
Synthesis, X-ray Structure, Basicity, and Dynamic Stereochemistry of a Donor-Substituted (2,6)Pyridinophane
Voegtle, Fritz,Koersgen, Ute Ursula,Puff, Heinrich,Reuter, Hans
, p. 343 - 346 (2007/10/02)
Treatment of 4b with phenyllithium afforded the donor-substituted 7,15-dimethoxy(2,6)pyridinophane (2) by intermolecular cyclization. 2 is compared with the unsubstituted compound 1 by X-ray crystallography, determination of basicity, and 1H-NMR studies.The results indicate an attractive interaction between the pyridine nitrogen of 2 and a H atom of a second molecule of 2. - Keywords: Pyridinophanes/ Pyridines, basicity of
A NEW SYNTHETIC METHOD OF CYCLOPHANES
Takemura, Hiroyuki,Shinmyozu, Teruo,Inazu, Takahiko
, p. 1031 - 1032 (2007/10/02)
Diazacyclophanes were converted to the correspondingcyclophanes via their N-nitroso derivatives by reductive extrusion of nitrogens.This reaction is simple, clean and mild, and may be an alternative synthetic way of cyclophanes.
