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Stereoselective Formation of C 2 ‐Symmetric ansa‐Lanthanocenes by Reductive Coupling of Acenaphthylene with Activated Ytterbium or Samarium
Author(s) -
Fedushkin Igor L.,
Dechert Sebastian,
Schumann Herbert
Publication year - 2001
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/1521-3773(20010202)40:3<561::aid-anie561>3.0.co;2-c
Subject(s) - acenaphthylene , samarium , fulvene , ytterbium , chemistry , coupling (piping) , samarium diiodide , medicinal chemistry , materials science , organic chemistry , physics , condensed matter physics , phenanthrene , doping , metallurgy
A fulvene‐type coupling results from the reduction of acenaphthylene by activated samarium or ytterbium in THF. This leads exclusively to the formation of the respective C 2 ‐symmetric trans‐rac ‐ansa‐lanthanocene complexes [( η 5 ‐C 12 H 8 ) 2 Ln(thf) 2 ] [Eq. (1); Ln=Sm, Yb].