Synthesis of a C1-symmetric Box macrocycle and studies towards active-template synthesis of mechanically planar chiral rotaxanes
摘要:
A C-1-symmetric Box macrocycle has been synthesized for the first time. The Box macrocycle along with other C-1 and C-2-symmetric Box ligands were evaluated and compared as ligands in the Cadiot-Chodkiewicz, oxidative Heck and CuAAC 'click' reactions as part of our studies towards achieving active-metal template synthesis of mechanically planar chiral rotaxanes. This study constitutes the first report of Cadiot-Chodkiewicz and CuAAC 'click' reactions using Box ligands, as well as the first dedicated study of oxidative Heck reactions using Box ligands. (C) 2012 Elsevier Ltd. All rights reserved.
Synthesis of a C1-symmetric Box macrocycle and studies towards active-template synthesis of mechanically planar chiral rotaxanes
作者:Pauline E. Glen、James A.T. O'Neill、Ai-Lan Lee
DOI:10.1016/j.tet.2012.10.069
日期:2013.1
A C-1-symmetric Box macrocycle has been synthesized for the first time. The Box macrocycle along with other C-1 and C-2-symmetric Box ligands were evaluated and compared as ligands in the Cadiot-Chodkiewicz, oxidative Heck and CuAAC 'click' reactions as part of our studies towards achieving active-metal template synthesis of mechanically planar chiral rotaxanes. This study constitutes the first report of Cadiot-Chodkiewicz and CuAAC 'click' reactions using Box ligands, as well as the first dedicated study of oxidative Heck reactions using Box ligands. (C) 2012 Elsevier Ltd. All rights reserved.
[2]Rotaxanes through Palladium Active-Template Oxidative Heck Cross-Couplings
作者:James D. Crowley、Kevin D. Hänni、Ai-Lan Lee、David A. Leigh
DOI:10.1021/ja075219t
日期:2007.10.1
Pd(II)-catalyzed cross-couplings have been utilized in the efficientsynthesis of [2]rotaxanes via an active-metal template strategy. The reaction is efficient, mild, and substrate-tolerant and uses only catalytic amounts of the Pd(II) template. In contrast, attempts using traditional Pd(0)-catalyzed cross-couplings led only to non-interlocked thread and no rotaxane.