Tetrahedron Letters p. 2335 - 2338 (1997)
Update date:2022-08-10
Topics:
Dawson, Graham
Durrant, Charles A.
Kirk, George G.
Whitby, Richard J.
Jones, Raymond V.H.
Standen, Michael C.H.
Asymmetric 2-aluminoethylalumination of mono-substituted alkenes and 2,5-dihydrofurans catalysed by (R,R)-ethylene-1,2.bis(η5-4,5,6,7-tetrahydro-1-indenyl)zirconium (R)-1,1'-binaphth-2,2'-diolate 4 and η5-cyclopentadienyl-η5-(1-neomenthyl-4,5,6,7-tetrahydroindenyl)zirconium dichloride 5. gave 30 - 99% enantiomeric excesses. The so formed organoaluminium has potential for further elaboration leading to enantiomerically enriched products.
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