93973-60-5Relevant academic research and scientific papers
Cobalt-Catalyzed Diastereoselective [4+2] Annulation of Phosphinamides with Heterobicyclic Alkenes at Room Temperature
Nallagonda, Rajender,Thrimurtulu, Neetipalli,Volla, Chandra M. R.
supporting information, p. 255 - 260 (2017/11/13)
Cobalt-catalyzed sp2 C?H bond functionalization of diarylphosphinamides with heterobicyclic alkenes was demonstrated at room temperature employing commercially available cobalt(II)-salts. The effectiveness of this strategy was illustrated with the reaction of various 8-aminoquinoline derived phosphinic amides and 7-oxa/azabenzonorbornadienes. The reaction conditions exhibited excellent functional group tolerance and high diastereoselectivities. Furthermore, extension of this approach to the preparation of polyaryl cyclic phosphinamides was achieved through the dehydrative ring opening/aromatization sequence. (Figure presented.).
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.
