940288-16-4Relevant academic research and scientific papers
Enantio- and diastereoselective syntheses of 3-hydroxypiperidines through iridium-catalyzed allylic substitution
Hoecker, Johannes,Rudolf, Georg C.,Baechle, Florian,Fleischer, Steffen,Lindner, Benjamin D.,Helmchen, Guenter
, p. 5149 - 5159 (2013/11/06)
Stereoselective syntheses of 3-hydroxypiperidines have been developed. Key intermediates are N-protected allylamines that are prepared by an enantioselective iridium-catalyzed allylic amination. A subsequent catch and release procedure that involves an epoxidation and base-mediated elimination yields δ-lactams that are suitably functionalized to prepare biologically active 3-hydroxypiperidines. In addition, applications of this method to the total syntheses of deoxymannojirimycin, D-erythro-sphingosine, and chiral building blocks of interest for medicinal chemistry are described. Stereoselective syntheses of 3-hydroxypiperidines are reported. The key reactions are an iridium-catalyzed allylic amination and a catch and release procedure that consists of a highly diastereoselective epoxidation and a base-mediated ring opening of the epoxide. This method was applied to the total syntheses of sphingosine, deoxymannojirimycin, and pharmaceutically relevant small molecules. Copyright
Development of copper-mediated allylation of γ-activated-α,β-unsaturated lactam toward peptide mimetic synthesis
Sasaki, Yoshikazu,Yamaguchi, Keiko,Tsuji, Takashi,Shigenaga, Akira,Fujii, Nobutaka,Otaka, Akira
, p. 3221 - 3224 (2007/10/03)
Reactions of γ-activated-α,β-unsaturated lactams with allylboronate in the presence of LiOi-Pr and CuX (stoichiometric or catalytic amount) proceed in an anti-SN2′ manner to yield α-allylated compounds that serve as a potential synthetic interm
