193945-88-9Relevant academic research and scientific papers
Visible-Light-Promoted Transition-Metal-Free Phosphinylation of Heteroaryl Halides in the Presence of Potassium tert-Butoxide
Yuan, Jia,To, Wai-Pong,Zhang, Zi-Yang,Yue, Chang-Duo,Meng, Sixuan,Chen, Jian,Liu, Yungen,Yu, Guang-Ao,Che, Chi-Ming
, p. 7816 - 7820 (2018)
A novel visible-light-promoted C-P bond formation reaction in the absence of both transition metal and photoredox catalysts is disclosed. By employing easily available and inexpensive heteroaryl chlorides/bromides as substrates, a variety of heteroaryl phosphine oxides were obtained in moderate to good yields. This strategy provides a simple and efficient route to heteroaryl phosphine oxides.
The ditopic ligands 4′-(diphenylphosphino)-2,2′:6′,2″-terpyridine L1 and 4′-(oxodiphenylphosphanyl)-2,2′:6′,2″-terpyridine L2: Co-ordination to iron(II), ruthenium(II), cobalt(II) and palladium(II); crystal structures of [RuL22][PF6]2·H 2O·MeCN and ...
Constable, Edwin C.,Housecroft, Catherine E.,Neuburger, Markus,Schneider, Alain G.,Zehnder, Margareta
, p. 2427 - 2434 (1997)
Title full: The ditopic ligands 4′-(diphenylphosphino)-2,2′:6′,2″-terpyridine L1 and 4′-(oxodiphenylphosphanyl)-2,2′:6′,2″-terpyridine L2: Co-ordination to iron(II), ruthenium(II), cobalt(II) and palladium(II); crystal structures of [RuL22][PF6]2·H 2O·MeCN and trans-[PdCl2L12]·2.5CH 2Cl2. The new compound 4′-(diphenylphosphino)-2,2′:6′,2″-terpyridine L1 has been prepared; in solution it readily oxidises to the corresponding phosphine oxide, L2. The reaction between L1 and FeCl2·4H2O yielded salts containing [FeL12]2+, however, oxidation resulted in the formation of [FeL22]2+. The corresponding ruthenium(II) complex of L2 has also been prepared and structurally characterised as the hexafluorophosphate salt; attempts to prepare [RuL12]2+ always resulted in oxidation of the ligand to L2. The reaction of L1 with cobalt(II) acetate gave [CoL12]2+ which has been isolated as the hexafluorophosphate salt. The complexes have been characterised by IR and NMR spectroscopies, mass spectrometry and elemental analysis. Compound L1 also reacts with [PdCl2(NCMe)2] to give trans-[PdCl2L12] which has been fully characterised; results of an X-ray diffraction study confirm the trans configuration of the complex.
