Syntheses based on anabasine. Preparation and transformations of N-oxides
作者:L. A. Musina、E. E. Shul’ts、L. A. Krichevskii、S. M. Adekenov、M. M. Shakirov、G. A. Tolstikova
DOI:10.1007/s11172-006-0256-5
日期:2006.2
selectively at the nitrogen atom of the pyridine ring. The oxidation of N-methylanabasine under similar conditions gives a mixture of stereo-isomeric N-oxides at the piperidine nitrogen atom, their ratio depending on the reagent used. The oxidation of anabasine by TBHP— MoCl5 or MCPBA is accompanied by dehydrogenation and results in anabaseine N-oxide. The reactions of anabasine and anabaseine pyridine
N-乙酰基-和N-苯甲酰anabasine用叔丁基过氧化氢(TBHP)-MoCl5系统或MCPBA在吡啶环的氮原子处选择性地进行氧化。N-methylanabasine 在类似条件下的氧化在哌啶氮原子上产生立体异构 N-氧化物的混合物,它们的比例取决于所用的试剂。TBHP-MoCl5 或 MCPBA 对 anabasine 的氧化伴随着脱氢并产生 anabasine N-氧化物。研究了anabasine和anabaseine吡啶N-氧化物与乙酸酐的反应。制备了取代的1H-3-pyridin-2-ones。