The synthesis of unsymmetrically N-substituted chiral 1,4,7-triazacyclononanes
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.