Stereoselective Synthesis of syn-β-Amino Propargylic Ethers: Application to the Asymmetric Syntheses of (+)-β-Conhydrine and (−)-Balanol
作者:Julien Louvel、Fabrice Chemla、Emmanuel Demont、Franck Ferreira、Alejandro Pérez-Luna、Arnaud Voituriez
DOI:10.1002/adsc.201100333
日期:2011.8
The stereoselective synthesis of syn-β-amino propargylic ethers by the addition of racemic lithio 3-(methoxymethoxy)allenylcuprates, and more particularly (cyano) and (mesityl)cuprates, to enantiopure chiral N-tert-butylsulfinylimines is reported. The scope and limitations of the reaction is studied. The usefulness of the methodology for the synthesis of compounds having a syn-1,2-amino alcohol unit
的立体选择性合成顺通过加入外消旋的锂代-3-(甲氧基甲氧基)allenylcuprates,并且更特别地(氰基)和(异亚丙基丙酮)铜酸盐,对映体纯,以手性的-β-氨基丙炔醚N-叔-butylsulfinylimines报道。研究了反应的范围和局限性。通过开发(+)-β-conhydrine和(-)-balanol的高级中间体的不对称合成,可以证明该方法可用于合成具有顺-1,2-氨基醇单元的化合物。