Lewis acid promoted three-component reactions of aziridines, arenes and aldehydes: an efficient and diastereoselective synthesis of cis-1,4-disubstituted tetrahydroisoquinolines
摘要:
A new Lewis acid promoted three-component reaction between the aziridine, arene and aldehyde has been developed. This reaction involves sequential ring opening of aziridine and Pictet-Spengler condensation and gives a broad range of cis-1,4-disubstituted tetrahydroisoquinolines in moderate yields with good diastereoselectivities under mild conditions. The methodology provides a rapid and convergent synthesis for the scaffold of tetrahydroisoquinoline and serves as a good tool for constructing the libraries of substituted tetrahydroisoquinolines. (C) 2015 Elsevier Ltd. All rights reserved.
Silver(I)−Diene Complexes as Versatile Catalysts for the <i>C</i>-Arylation of <i>N</i>-Tosylaziridines: Mechanistic Insight from In Situ Diagnostics
作者:Milan Bera、Sujit Roy
DOI:10.1021/jo100260k
日期:2010.7.2
31P, 109Ag) and ESI-MS probe: (I) evaluation of Hammett reaction constant (ρ); (II) correlation of initial rate (k) versus cone angle (θ) of ligand L for reactions mediated by [Ag(COD)2]PF6/L (where L is a phosphine or a phosphite ligand); (III) identification of silver−arene intermediates in solution; and (IV) correlation of initial rate (k) with ΔHOMO−LUMO of [Ag(diene)2]PF6 obtained from preliminary
Lewis acid promoted three-component reactions of aziridines, arenes and aldehydes: an efficient and diastereoselective synthesis of cis-1,4-disubstituted tetrahydroisoquinolines
作者:Siyang Xing、Jing Ren、Kui Wang、Hong Cui、Wenrui Li、Han Yan
DOI:10.1016/j.tet.2015.06.013
日期:2015.9
A new Lewis acid promoted three-component reaction between the aziridine, arene and aldehyde has been developed. This reaction involves sequential ring opening of aziridine and Pictet-Spengler condensation and gives a broad range of cis-1,4-disubstituted tetrahydroisoquinolines in moderate yields with good diastereoselectivities under mild conditions. The methodology provides a rapid and convergent synthesis for the scaffold of tetrahydroisoquinoline and serves as a good tool for constructing the libraries of substituted tetrahydroisoquinolines. (C) 2015 Elsevier Ltd. All rights reserved.