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Preparation of P,N ‐Heterodifunctional Ferrocene‐Coordinating Ligands by Selective Functionalization of Polyphosphanes by the Staudinger Reaction – Crystal and Molecular Structure of a New Cyclometallaphosphoraniminophosphane of Palladium(II)
Author(s) -
Molina Pedro,
Arques Antonio,
García Alejandro,
Ramírez de Arellano M. Carmen
Publication year - 1998
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/(sici)1099-0682(199809)1998:9<1359::aid-ejic1359>3.0.co;2-c
Subject(s) - chemistry , palladium , ferrocene , benzonitrile , metallacycle , azide , tris , dendrimer , staudinger reaction , stoichiometry , polymer chemistry , medicinal chemistry , coupling reaction , crystal structure , stereochemistry , organic chemistry , catalysis , x ray crystallography , biochemistry , physics , electrode , diffraction , optics , electrochemistry
Staudinger reactions of the β‐ferrocenylvinyl azide 1 with several diphosphanes in a 1:1 molar ratio afford the monoiminophosphorane derivatives 2 – 4 , whereas with a 2:1 stoichiometry these reactions afford the bis(iminophosphoranes) 5 – 7 . Similar results are obtained for the reactions of 1 with tris(diphenylphosphanylmethyl)ethane ( triphos ) and tris[2‐(diphenylphosphanyl)ethyl]phosphane ( tetraphos ). Reaction of these P,N ‐difunctional ferrocene ligands with dichlorobis(benzonitrile)palladium(II) leads to the Pd II ‐metallacycle derivatives 13 and 14 . The molecular structures of 5d and 13 have been established by X‐ray crystallography.