Bisxantphos: Stereoselective synthesis and coordination behaviour of a new class of cyclic double bridged diphosphines
作者:René den Heeten、Erik Zuidema、Martin Lutz、Anthony L. Spek、Piet W.N.M. van Leeuwen、Paul C.J. Kamer
DOI:10.1016/j.jorganchem.2011.06.019
日期:2011.9
A newclass of cyclic double bridged diphosphineligands was developed and the coordination properties are described. The reaction of 4,5-dilithioxanthene with dichlorophenylphosphine gave a cyclic double bridged diphosphineligand based on two xanthene backbones (4) as a single stereoisomer. X-ray crystal structure determination revealed that the groups bridging the two phosphorus atoms are arranged
作者:Jingwei Yin、Ali N. Khalilov、Pandi Muthupandi、Ruby Ladd、Vladimir B. Birman
DOI:10.1021/jacs.9b11160
日期:2020.1.8
We introduce phenazine-1,6-dicarboxamides as redox-responsivemolecularswitches. Reduction of their phenazine core transforms it from a hydrogen bond acceptor into a hydrogen bond donor and thus forces the secondary amide substituents to turn around. The resulting conformational changes are envisioned to form the basis for butterfly-coil foldamers undergoing reversible extension and contraction in