Through space interaction between ferrocenes mediated by a thioether
作者:G. Joel Meyer、Gabriel B. Hall、Elliott R. Smith、Takahiro Sakamoto、Dennis L. Lichtenberger、Richard S. Glass
DOI:10.1016/j.poly.2014.06.050
日期:2015.1
Abstract A series of conformationally constrained 2,6-bisferrocenylphenyl thioethers were synthesized via Suzuki–Miyaura cross coupling reactions. Structural information was obtained using X-ray crystallography and dynamic 1H NMR spectroscopic studies, showing highly constrained m-terphenyl systems. Interaction of the ferrocene moieties through space mediated by the sulfur were studied by ultra-violet
Suzuki–Miyaura synthesis of m-terphenyl thioethers and their facilitated oxidation caused by through-space π⋯S⋯π interaction
作者:Takuhei Yamamoto、Malika Ammam、Sue A. Roberts、George S. Wilson、Richard S. Glass
DOI:10.1016/j.tet.2016.03.040
日期:2016.5
synthesized by Suzuki–Miyaura coupling reactions with 2,6-dibromo-S-tert-butylthio benzene. Selective monocoupling could be achieved with o-substituted boronic acids. This facilitated the synthesis of unsymmetrical S-tert-butyl m-terphenyl thioethers and bis(S-tert-butyl m-terphenyl thioether)s. The study of their electrochemistry showed facilitated oxidations resulting from through-space π⋯S⋯π interactions
Alkyl- and Arylthiodediazoniations of Dry Arenediazonium <i>o</i>-Benzenedisulfonimides. Efficient and Safe Modifications of the Stadler and Ziegler Reactions to Prepare Alkyl Aryl and Diaryl Sulfides
yields were obtained only when sterically hindered diazoniumsalts or thiols were used. A good amount of the o-benzenedisulfonimide (8) was always recovered from the reactions and could be reused to prepare salts 1. The copious experimental data collected in homogeneous conditions have offered several starting points for the study of the mechanism of these reactions.