Various routes to functionalized benzenes labelled in position 1 were compared. 1-[13C]-Bromobenzene has been synthesized in 7 steps with an overall yield of 5.4% from [13C]-BaCO3, by optimizing the direct transformation of p-nitrophenol into bromobenzene.
The conformation of the Congo-red ligand bound to amyloid fibrils HET-s(218–289): a solid-state NMR study
作者:Chandrakala Gowda、Giorgia Zandomeneghi、Herbert Zimmermann、Anne K. Schütz、Anja Böckmann、Matthias Ernst、Beat H. Meier
DOI:10.1007/s10858-017-0148-z
日期:2017.12
by HET-s(218-289) with the long axis of the CR molecule almost parallel to the fibril axis. HADDOCK docking studies indicated that CR adopts a roughly planar conformation with the torsion angle ϕ characterizing the relative orientation of the two phenyl rings being a few degrees. In this study, we experimentally determine the torsion angle ϕ at the center of the CR molecule when bound to HET-s(218-289)
<sup>13</sup>C-NMR.-Spektroskopie von Organolithiumverbindungen bei tiefen Temperaturen. Strukturinformation aus der<sup>13</sup>C,<sup>6</sup>Li-Kopplung
作者:Dieter Seebach、Robert Hässig、Josef Gabriel
DOI:10.1002/hlca.19830660128
日期:1983.2.2
Low-Temperature 13C-NMR. Spectroscopy of Organolithium Derivatives. - 13C, 6Li-Coupling, a Powerful Structural Information