Ligand Effect on Pd(0)-Catalyzed Allylation of Alkyl (Diphenylmethylene)glycinates

Gosiewska, S., Gotov, B. and Toma, ҆. Ligand Effect on Pd(0)-Catalyzed Allylation of Alkyl (Diphenylmethylene)glycinates Chemical Papers, Vol.58, No. 2, 2004, 113-116

Document type: ńĆl√°nok z ńćasopisu / Journal Article
Collection: Chemical papers  
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Author(s) Gosiewska, S.
Gotov, B.
Toma, ҆.
Title Ligand Effect on Pd(0)-Catalyzed Allylation of Alkyl (Diphenylmethylene)glycinates
Journal name Chemical Papers
Publication date 2004
Year available 2004
Volume number 58
Issue number 2
ISSN 0366-6352
Start page 113
End page 116
Place of publication Poland
Publisher Versita
Collection year 2004
Language english
Subject 250000 Chemical Sciences
250300 Organic Chemistry
Abstract/Summary The effect of six different P,N-ferrocenyl ligands having both central and planar chirality on the stereoselectivity of Pd(0)-catalyzed allylation of methyl or (1R,2S,5R)-(-)-menthyl (diphenylmethylene) glycinate was studied. Just moderate yields of the allylation products were isolated. The highest stereoselectivity was achieved with the ligand (R,pS)-BPPFA, namely 25.5 % ee at allylation of methyl glycinate. It was proved that in allylation of (1R,2S,5R)-(-)-menthyl (diphenylmethylene) glycinate the ester chiral auxiliary has a dominant effect.
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