5849-47-8Relevant academic research and scientific papers
Bis-2-thienyldiethylaminophosphane as a ligand in late transition metal complexes and its transformation to bis-2-thienylphosphane
Granitzka, Markus,Stollberg, Peter,Stalke, Dietmar
supporting information, p. 1429 - 1440 (2015/06/16)
Bis-2-thienyldiethylaminophosphane (C4H3S)2PNEt2 (1) is introduced as a ligand for late transition metal complexes ([(H3C4S)2PNEt2]nMXmLp/s
Rhodium-catalyzed oxidative C-H activation/cyclization for the synthesis of phosphaisocoumarins and phosphorous 2-pyrones
Park, Youngchul,Seo, Jungmin,Park, Sangjune,Yoo, Eun Jeong,Lee, Phil Ho
supporting information, p. 16461 - 16468 (2013/12/04)
Rhodium-catalyzed cyclization of phosphinic acids and phosphonic monoesters with alkynes has been developed. The oxidative annulation proceeds with complete conversion of phosphinic acid derivatives and allowed the atom-economic preparation of useful phosphaisocoumarins with high yield and selectivity. The reaction is tolerant of extensive substitution on the phosphinic acid, phosphonic monoester and alkyne, including halides, ketone, and hydroxyl groups as substituents. Furthermore, we found that alkenylphosphonic monoesters proceed to give a wide range of phosphorus 2-pyrones through oxidative annulation with alkynes. Mechanistic studies revealed that Ci￡H bond metalation was the rate-limiting step. Copyright
Synthesis and structural studies (1H, 13C, 31P NMR and X-ray) of new C-bonded cyclotriphosphazenes with heterocyclic substituents from novel phosphinic acid derivatives
Vicente, Virginie,Fruchier, Alain,Taillefer, Marc,Combes-Chamalet, Corinne,Scowen, Ian J.,Plenat, Francoise,Cristau, Henri-Jean
, p. 418 - 424 (2007/10/03)
Three new C-bonded cyclotriphosphazenes, [N3P 3(2-thienyl)6], 2, [N3P3(3-thienyl) 6], 4, and [N3P3(3,3′-bithienyl-2, 2′-ylene)3], 6, have been prepared by two new synthetic procedures and are the first examples of non-spiro and trispirocyclotriphosphazene derivatives composed of thiophene and 3,3′-dithiophene substituents, respectively. Their 1H, 13C and 31P NMR parameters are given. The solid state structures of 2, 4 and 6 have been determined by X-ray crystallography.
