Synthesis and structural and conformational study of 3,7-dimethyl-3,7-diazabicyclo[3.3.1]nonan-9-one oxime and its tautomer imine N-oxide
作者:M.J. Fernández、R. Huertas、E. Gálvez、J. Sanz-Aparicio、I. Fonseca、J. Bellanato
DOI:10.1016/0022-2860(94)07986-2
日期:1994.7
Abstract In an attempt to synthesize the 3,7-dimethyl-3,7-diazabicyclo[3.3.1]nonan-9-one oxime hydrochloride, the corresponding tautomer imine N -oxide hydrochloride ( I ·HCl) was obtained, as deduced from X-ray and IR data. By neutralization of I ·HCl, the corresponding oxime ( II ) was obtained and characterized by IR data. From the 1 H and 13 C NMR spectra of I ·HCl and II , a twin-chair conformation
摘要 为合成3,7-二甲基-3,7-二氮杂双环[3.3.1]壬烷-9-酮肟盐酸盐,得到相应的互变异构体亚胺N-氧化物盐酸盐(I·HCl),由X 射线和红外数据。通过中和I·HCl,得到相应的肟(II)并用红外数据表征。从 I·HCl 和 II 的 1 H 和 13 C NMR 谱推断出双环体系的双椅构象,在 II 中更平坦。I·HCl 的 X 射线数据也显示了这种构象。