- Chiral Organometallic Reagents, XVI. Enantiomerization of α-Thio-, α-Seleno-, and α-Telluro-Substituted Alkyllithium Compounds; Kinetic and Mechanistic Studies
-
The rate of enantiomerization of the racemic α-phenylselenoalkyllithium compound 6 has been determined by dynamic NMR spectroscopy in THF.The enantiomerization rate was found to be first order with respect to monomeric 6 and to show no conspicuous sol
- Hoffmann, Reinhard W.,Dress, Ruprecht K.,Ruhland, Thomas,Wenzel, Andreas
-
p. 861 - 870
(2007/10/02)
-
- Synthesis and characterization of bis(aryltelluro)methanes
-
The reaction of diarylditellurides with diazomethane was used to prepare 7 new bis(aryltelluro)methanes, ArTeCH2TeAr.These compunds were characterized by their 1H, 13C NMR and IR spectra and elemental analysis.The 13C NMR spectra of the corresponding dite
- Torres, Libardo C.
-
-
- Synthesis of chelating ditelluroether ligands, RTeCH2CH2CH2TeR (R = Me, Ph)
-
RTeLi (R = Me, Ph), prepared in situ in tetrahydrofuran from RLi and Te, react at low temperatures with 1,3-dihalopropanes, X(CH2)3X (X = Cl, Br), to give high yields of RTe(CH2)3TeR. At ambient or higher temperatures these reactions yield mainly R2Te2. The RTeCH2TeR are made analogously, but 1,2-dichloroethane gave only R2Te2.
- Hope, Eric G.,Kemmitt, Tim,Levason, William
-
p. 206 - 207
(2008/10/08)
-