作者:J. Erik W. Scheuermann、Kevin F. Sibbons、David M. Benoit、Majid Motevalli、Michael Watkinson
DOI:10.1039/b409259g
日期:——
A number of chiral unsymmetrically N-substituted 1,4,7-triazacyclononane ligands have been prepared by modular methods. The key step in the synthesis centres on the macrocyclisation of three tertiary amide precursors under standard Richman-Atkins conditions which allows for subsequent N-functionalisation.
已经通过模块化方法制备了许多手性不对称的N-取代的1,4,7-三氮杂环壬烷配体。合成中的关键步骤集中于在标准Richman-Atkins条件下对三种叔酰胺前体进行大环化,从而可以进行随后的N-官能化。