A Convenient Synthesis of Enantiomerically Pure Ethylene‐Bridged Metallocene Complexes Bearing Fluorenyl‐ and Octahydrofluorenyl Ligands [1] | Zendy

Rieger Bernhard | Zendy; Jany Gerhard | Zendy

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A Convenient Synthesis of Enantiomerically Pure Ethylene‐Bridged Metallocene Complexes Bearing Fluorenyl‐ and Octahydrofluorenyl Ligands [1]

Author(s) -

Rieger Bernhard,

Jany Gerhard

Publication year - 1994

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.19941271212

Subject(s) - chemistry , trifluoromethanesulfonate , metallocene , derivatization , yield (engineering) , ethylene , ligand (biochemistry) , ring (chemistry) , medicinal chemistry , stereochemistry , organic chemistry , catalysis , high performance liquid chromatography , polymerization , biochemistry , materials science , receptor , metallurgy , polymer

Ring opening of ( R )‐(–)‐epoxystyrene ( 1 ) with fluorenyllithium leads to the optically active alcohol 2 in high yield. Derivatization of 2 to the trifluoromethanesulfonate 4 and subsequent reaction with one equivalent of fluorenyllithium gives the ligand precursor (1 S )‐1,2‐bis(9‐fluorenyl)‐1‐phenylethane ( 5 ), which is used for the synthesis of [(1 R )‐1,2‐bis(η 5 ‐9‐fluorenyl)‐1‐phenylethane]ZrCl 2 ( 6 ).

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