New Insights into the Mechanism of Palladium-Catalyzed Allylic Amination
作者:Iain D. G. Watson、Andrei K. Yudin
DOI:10.1021/ja055288c
日期:2005.12.1
sigma-complexes, which is consistent with NMR data. The apparent stability of branched allyl aziridines towards palladium-catalyzed isomerization is attributed to a combination of factors that stem from a higher degree of s-character of the aziridine nitrogen compared to other amines. The reaction allows for regio- and enantioselective incorporation of aziridine rings into appropriately functionalized building
A Versatile Synthesis of Various Substituted Taurines from Vicinal Amino Alcohols and Aziridines
作者:Ning Chen、Weiyi Jia、Jiaxi Xu
DOI:10.1002/ejoc.200900759
日期:2009.11
Taurine and structurally diverse substituted taurines have been synthesized by peroxyformic acid oxidation of the thiazolidine-2-thione intermediates generated from vicinal amino alcohols or aziridines and carbon disulfide. Thestereochemistry and mechanisms of the reactions are disscussed. The method is a salt-free and versatile route, convenient in terms of purification, and can be used to synthesize
作者:Allen Martin、Kathleen Casto、William Morris、Jeremy B. Morgan
DOI:10.1021/ol202410v
日期:2011.10.21
Aziridines are important synthetic Intermediates which readily undergo ring-opening reactions. It is demonstrated that electron-rich phosphines are efficient catalysts for the regioselective rearrangement of N-acylaziridines to oxazolines. The reactions occur in excellent yield under neutral conditions. Evidence is provided for an addition/elimination mechanism by generation of a phosphonium intermediate. Similar intermediates may be useful for the development of alternate aziridine ring-opening processes and stereoselective synthesis with enantiopure phosphines.
Synthesis of Mexiletine Analogues from Non-Activated Aziridines
作者:Tore Lejon、Truls Ingebrigtsen
DOI:10.3987/com-07-11001
日期:——
Ring opening of aziridines by different fluorinating reagents: three synthetic routes to .alpha.,.beta.-fluoro amines with different stereochemical pathways
作者:Gerard M. Alvernhe、Christine M. Ennakoua、Sylvie M. Lacombe、Andre J. Laurent