Abstract
Palladium complexes with chiral phosphinooxazoline ligands were studied as catalysts for the enantioselective intramolecular alkylation of (Z)-methyl 8-acetoxy-3-oxo-6-octenoate ( 1) and (E)- and (Z)-methyl 2-methoxycarbonyl-8-methoxycarbonyloxy-6-octenoate ( 2, 3). The best results were obtained with 2 and 3 which cyclized to the corresponding cyclopentane derivative with 60% yield and up to 87% ee under optimized conditions.
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