Total Synthesis of (±)-Decinine via an Oxidative Biaryl Coupling with Defined Axial Chirality
摘要:
The total synthesis of (+/-)-decinine has been achieved. The key steps in the synthesis involved the formation of lasubine II via a gold catalyzed annulation of 1-(but-3-yn-1-yl)piperidine and the formation of the 12-membered ring of decinine (1) with complementary atropselectivity via a VOF3-mediated oxidative biaryl coupling reaction.
Catalysis of vitamin A aldehyde isomerization by primary and secondary amines
作者:David L. Lukton、Robert R. Rando
DOI:10.1021/ja00328a037
日期:1984.8
La formation de bases de Schiff entre les aldehydes de la vitamine A et des amines saturees ou aromatiques n'augmente pas beaucoup les vitesses d'isomerisation thermique. Cependant la protonation des bases de Schiff augmente fortement leur vitesse d'isomerisation
Laformation de bases de Schiff entre les aldehydes de la Vitamine A et des amines saturees ou Aromatiques n'augmente pas beaucoup les vitesses d'isomerisation thermique。Cependant la protonation des bases de Schiff Augmente fortement leur vitesse d'isomerisation
Relative Basicities of Some <i>Endo</i> and <i>Exo</i> Norbornylamines
作者:A. Gilbert Cook、Laura R. Wesner、Sarah L. Folk
DOI:10.1021/jo9710442
日期:1997.10.1
group to disperse a positive charge and the relative polarizabilities of the solvents. Semiempirical AM1 and PM3 methods along with ab initio HF/STO-3G, HF/3-21G, and HF/6-31G methods were used to calculate proton affinities and dipole moments for each of the amines. The results of the theoretical calculations correspond well with the experimental observations.