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New (1‐Phosphanylferrocen‐1′‐ and ‐2‐yl)methyl‐Linked Diaminocarbene Ligands: Synthesis and Rhodium(I) Complexes
Author(s) -
Labande Agnès,
Daran JeanClaude,
Manoury Eric,
Poli Rinaldo
Publication year - 2007
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/ejic.200601193
Subject(s) - chemistry , ferrocene , rhodium , methylene , methanol , cationic polymerization , stereochemistry , medicinal chemistry , elemental analysis , polymer chemistry , organic chemistry , catalysis , electrode , electrochemistry
Abstract Two ferrocenylmethanols, [1′‐(diphenylthiophosphanyl)ferrocen‐1‐yl]methanol ( 3 ) and [2‐(diphenylthiophosphanyl)ferrocen‐1‐yl]methanol ( 6 ), have been converted in one step into the 1,1′‐ and 1,2‐ferrocenediyl‐linked thiophosphane/ N ‐R‐imidazolium salts 4a , b and 7a , b ( a : R = Me; b : R = 2,4,6‐Me 3 C 6 H 2 or Mes). This straightforward method allows the linkage of an imidazolium group to a ferrocene unit with a nonsubstituted methylene bridge. After desulfurisation of the phosphane group, the ligands reacted with an Rh I precursor, in the presence of t BuOK, to give cationic complexes 9a , b and 10a , b . All compounds were characterised by elemental analysis, NMR spectroscopy and mass spectrometry. The molecular structures of compounds 4a , 7a and 9a were determined by X‐ray crystallography. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)