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Aromaten(phosphan)metall‐Komplexe, XIV. Synthese von η 5 ‐Cyclohexadienyl‐ und η 4 ‐Cyclohexa‐1,3‐dien‐Osmiumkomplexen aus [C 6 H 6 OsI(PR 3 ) 2 ]PF 6
Author(s) -
Zenkert Karin,
Werner Helmut
Publication year - 1988
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19881210432
Subject(s) - chemistry , osmium , iodide , medicinal chemistry , metal , stereochemistry , catalysis , ruthenium , organic chemistry
Arene(Phosphane)metal complexes, XIV. — Synthesis of η 5 ‐Cyclohexadienyl‐ and η 4 ‐Cyclohexa‐1,3‐diene Osmium Complexes from [C 6 H 6 Osl(PR 3 ) 2 ]PF 6 The reaction of [C 6 H 6 OsI(PR 3 ) 2 ]PF 6 ( 1,4 ) with NaBH 4 in ethanol leads almost quantitatively to the formation of the η 5 ‐cyclohexadienyl complexes (η 5 ‐C 6 H 7 OsI(PR 3 ) 2 ( 5: R = Me; 6 : R = Ph). Reduction of 5 with Na in THF gives the highly reactive [(η 5 ‐C 6 H 7 )Os(PMe 3 ) 2 ]‐ anion which reacts with NH 4 PF 6 in the presence of iodide to produce the compounds (η 5 ‐C 6 H 7 OsH(PMe 3 ) 2 ( 8 ) and (η 4 ‐C 6 H 8 )OsHI(PMe 3 ) 2 ( 9 ).