Synthetic Strategy for Cyclic Amines: A Stereodefined Cyclic N,O-Acetal as a Stereocontrol and Diversity-Generating Element
作者:Haejin Kim、Wontaeck Lim、Donghong Im、Dong-gil Kim、Young Ho Rhee
DOI:10.1002/anie.201206967
日期:2012.11.26
In control: A new synthetic strategy towards cyclic amines was developed and exploits a stereodefined cyclic N,O‐acetal as the key stereocontrol and diversity‐generating element. The cyclic N,O‐acetal was prepared from the sequential asymmetric hydroamination of an alkoxyallene with the chiral ligand L*, and ring‐closing metathesis. The stereochemical integrity of the labile N,O‐acetal was conserved
在控制方面:开发了一种新的合成环状胺的策略,并利用立体定义的环状N,O-乙缩醛作为关键的立体控制和多样性生成元素。环状N,O-乙缩醛由具有手性配体L *的烷氧基丙二烯连续不对称加氢胺化和闭环复分解反应制得。在所有催化转化中,不稳定的N,O-乙缩醛的立体化学完整性均得到保留。