Otrzymano od użytkownika BO za pośrednictwem Czytnika Google:
Publication year: 2010
Source: Tetrahedron Letters, In Press, Accepted Manuscript, Available online 31 May 2010
Hsien-Chang, Kao , Chia-Jung, Hsu , Che-Wei, Hsu , Chien-Ho, Lin , Wen-Jwu, Wang
A family of acyclic aza-bridged bis-1,10-phenanthroline compounds has been synthesized in a convenient way. The resulting compounds 2 and 2·HCl were fully characterized and their solid-state structures and NMR spectroscopic properties were investigated to assess how the structural units affect the alkylation reactions. The results reveal the transoid structure for 2. The broadening NMR peak in 2 is shown to due to an unusual intramolecular CH…N hydrogen bond. This unique conformation offers an efficient and regioselective method to prepare the amino-substituted bis-2,2'-1,10-phenanthroline derivatives and 1,10-phenanthrolino-N-alkylated compounds.
Graphical abstract
An efficient and regioselective method was developed to prepare the amino-substituted bis-1,10-phenanthroline derivatives and 1,10-phenanthrolino-N-alkylated compounds. X-ray and NMR investigations reveal the transoid structure for 2, where the unusual intramolecular CH…N hydrogen bond was shown.
