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 piperidinenitrogen 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
作者:L. A. Musina、E. E. Shults、I. Yu. Bagryanskaya、Yu. V. Gatilov、M. M. Shakirov、G. A. Tolstikov、S. M. Adekenov
DOI:10.1007/s11172-008-0021-z
日期:2008.1
N-Phenacyl salts of acetyl-, benzoyl-, and methylanabasine were synthesized for the first time. Their reactions with unsaturated carbonyl compounds of the ethylene and acetylene series and acrylonitrile were studied. Methods for the synthesis of 6- and 8-(2-piperidyl)indolizines were developed.