Synthesis of new triphenylphosphines with pending ethynyl substituents
作者:Guillaume Grelaud、Gilles Argouarch、Frédéric Paul
DOI:10.1016/j.tetlet.2010.05.055
日期:2010.7
The straightforward isolation and characterization of new triphenylphosphines possessing a pendent ethynyl substituent on one or several peripheral aryl ring(s) are reported. The synthesis of this family of compounds is achieved by retro-Favorsky reactions from the corresponding propargylic alcohol derivatives, themselves obtained following a classic Sonogashira-type coupling between the ad hoc bromophenyl phosphines and 2-methylbut-3-yn-2-ol. (C) 2010 Elsevier Ltd. All rights reserved.
A Track-Based Molecular Synthesizer that Builds a Single-Sequence Oligomer through Iterative Carbon-Carbon Bond Formation
作者:Charlie T. McTernan、Guillaume De Bo、David A. Leigh
DOI:10.1016/j.chempr.2020.09.021
日期:2020.11
iteratively joining buildingblocks to form an oligomer of single sequence with a continuous backbone of carbon-carbon bonds. The rotaxane features a macrocycle bearing an aldehyde-terminated chain and an axle containing different phosphonium ylides separated by rigid spacers. Each ylide is large enough to block the passage of the macrocycle, trapping the ring between the stopper at the terminus of