Synthesis and Molecular Properties of Partially Fluorinated DNTTs**
作者:Matthias W. Tripp、Daniel Bischof、Maximilian Dreher、Gregor Witte、Ulrich Koert
DOI:10.1002/ejoc.202001635
日期:2021.2.25
Partially fluorinated dinaphthothienothiophenes (DNTTs) were synthesized via bisthiomethyl alkene intermediates which were accessible by McMurry coupling or Wittig olefination of partially fluorinated naphthalene precursors. The electronic structure of the DNTTs is compared with thiophene and fluorinated naphthalene units.
F<sub>8</sub>BINOL, an Electronically Perturbed Version of BINOL with Remarkable Configurational Stability
作者:Andrei K. Yudin、L. James P. Martyn、Subramanian Pandiaraju、Juan Zheng、Alan Lough
DOI:10.1021/ol991244v
日期:2000.1.1
of electron density within the biaryl skeleton but has a very small influence on the torsion angle. The most important consequence of this structural alteration is the dramatic increase in configurationalstability of homochiral F8BINOL.
The present application provides, among other things, novel compounds and methods for metathesis reactions. In some embodiments, a provided compound has the structure of formula I. In some embodiments, the present invention provides methods for preparing a compound of formula I. In some embodiments, the present invention provides metathesis methods comprising providing a compound of formula I.
The present invention relates generally to olefin metathesis. In some embodiments, the present invention provides methods for Z-selective ring-closing metathesis.
本发明一般涉及烯烃交换反应。在某些实施例中,本发明提供了Z-选择性环闭合烯烃交换反应的方法。
Polyfluorinated phosphine ligands in the room temperature Suzuki cross-coupling reactions
作者:Shahla Yekta、Lawrence Cheung、Andrei K. Yudin
DOI:10.1016/j.tetlet.2007.09.016
日期:2007.11
Polyfluorinated phosphine ligands can be obtained by regioselective nucleophilic aromatic substitution on tetrafluoro-naphthalene derivatives. The ligand effciency has been demonstrated in the room temperature Suzuki coupling reactions of aryl bromides and aryl boronic acids. The described process allows access to a new class of highly versatile fluorinated phosphine ligands. (C) 2007 Elsevier Ltd. All rights reserved.