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C–C Coupling Reactions of Pentacarbonyl(trifluoroethenyl isocyanide)chromium with Cyclopentadienyl Complexes
Author(s) -
Lentz Dieter,
Mujkic Monika,
Roth Stefanie
Publication year - 2008
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.200800194
Subject(s) - chemistry , cyclopentadienyl complex , isocyanide , chromium , nucleophile , ligand (biochemistry) , medicinal chemistry , coupling reaction , iron pentacarbonyl , stereochemistry , crystallography , organic chemistry , catalysis , biochemistry , receptor
The nucleophic attack of the trifluoroethenyl group of pentacarbonyl(trifluoroethenyl isocyanide)chromium 2 by various cyclopentadienyl ligand containing nucleophiles 1a – f allow an efficient synthesis of functionalized cyclopentadienyl complexes 3a – f . Extension of this method to 1,1′‐dilithioferrocene ( 4a ) and 1,1′‐dilithioruthenocene ( 4b ) yields the difunctionalized derivatives 5a and b , respectively. In general compounds of type 3 and 5 are obtained as mixtures of the E and Z isomers. The crystal and molecular structures of Z ‐ 3a , Z ‐ 3b , Z ‐ 3c and E , Z ‐ 5a were elucidated by X‐ray diffraction. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)