Phosphorylation of Diaminopyridines: Synthesis of a Compound Containing Both a Diphosphinoamine ( P-N-P) and an Iminobiphosphine ( N=P-P) Fragment

Fei, ZhaofuPaunescu, EmiliaAng, Wee HanScopelliti, RosarioDyson, Paul J.2014-05-022014-05-022014-05-02201410.1002/ejic.201301143https://infoscience.epfl.ch/handle/20.500.14299/103076WOS:000333486900021The phosphorylation of a series of diaminopyridines (2,3-, 3,4-, 2,5- and 2,6-diaminopyridine), with various molecular equivalents of chlorodiphenylphosphine in the presence of TEA has been studied. Notably, phosphorylation of 2,3- and 3,4-diaminopyridine affords compounds with diphosphinoamine (P-N-P) and iminobiphosphine (N=P-P) entities co-existing in the same molecule. Phosphorylations of 2,5- and 2,6-diaminopyridine afford compounds containing only diphosphinoamine units. The solid-state structure of three compounds has been determined including the first example of a crystallographically characterized compound containing both a diphosphinoamine group and an iminobiphosphine group in the same structure.Main group elementsPhosphorylationNP ligandsAminophosphinesPhosphinoaminesIminobiphosphinesPhosphorylation of Diaminopyridines: Synthesis of a Compound Containing Both a Diphosphinoamine ( P-N-P) and an Iminobiphosphine ( N=P-P) Fragmenttext::journal::journal article::research article