Iterative Synthesis of Oligo[<i>n</i>]rotaxanes in Excellent Yield
作者:James E. M. Lewis、Joby Winn、Luca Cera、Stephen M. Goldup
DOI:10.1021/jacs.6b08958
日期:2016.12.21
We present an operationally simple iterative coupling strategy for the synthesis of oligomeric homo- and hetero[n]rotaxanes with precise control over the position of each macrocycle. The exceptional yield of the AT-CuAAC reaction, combined with optimized conditions that allow the rapid synthesis of the target oligomers, opens the door to the study of precision-engineered oligomeric interlocked molecules
Synthesis of a Mechanically Planar Chiral Rotaxane Ligand for Enantioselective Catalysis
作者:Andrew W. Heard、Stephen M. Goldup
DOI:10.1016/j.chempr.2020.02.006
日期:2020.4
been explored in catalysis and sensing. However, so far, the applications of one of the most intriguing properties of interlocked molecules, their ability to display stereogenic units that do not rely on the stereochemistry of their covalent subunits, termed “mechanical chirality,” have yet to be properly explored, and prototypical demonstration of the applications of mechanically chiral rotaxanes remain
Stereoselective Synthesis of Mechanically Planar Chiral Rotaxanes
作者:Michael A. Jinks、Alberto de Juan、Mathieu Denis、Catherine J. Fletcher、Marzia Galli、Ellen M. G. Jamieson、Florian Modicom、Zhihui Zhang、Stephen M. Goldup
DOI:10.1002/anie.201808990
日期:2018.11.5
Chiral interlocked molecules in which the mechanicalbond provides the sole stereogenic unit are typically produced with no control over the mechanical stereochemistry. Here we report a stereoselective approach to mechanically planar chiralrotaxanes in up to 98:2 d.r. using a readily available α‐amino acid‐derived azide. Symmetrization of the covalent stereocenter yields a rotaxane in which the mechanical
机械键提供唯一立体单元的手性联锁分子通常是在不控制机械立体化学的情况下产生的。在这里,我们报告了一种机械平面手性轮烷的立体选择性方法,其比例高达 98:2 dr 。使用容易获得的α-氨基酸衍生的叠氮化物。共价立构中心的对称化产生轮烷,其中机械键提供唯一的立构元件。
Efficient Multicomponent Active Template Synthesis of Catenanes
作者:James E. M. Lewis、Florian Modicom、Stephen M. Goldup
DOI:10.1021/jacs.8b01602
日期:2018.4.11
We describe a simple and high yielding active templatesynthesis of [2]catenanes. In addition to mechanical bond formation using a single premacrocycle bearing an azide and alkyne moiety, our method is also suitable for the co-macrocyclization of readily available bis-alkyne and bis-azide comonomers and even short alkyne/azide components which oligomerize prior to mechanical bond formation.
High yielding synthesis of 2,2′-bipyridine macrocycles, versatile intermediates in the synthesis of rotaxanes
作者:J. E. M. Lewis、R. J. Bordoli、M. Denis、C. J. Fletcher、M. Galli、E. A. Neal、E. M. Rochette、S. M. Goldup
DOI:10.1039/c6sc00011h
日期:——
We present a simple approach to bipyridine macrocycles in remarkable yields (typically >65%) and demonstrate their application in efficient rotaxane synthesis.