Asymmetric palladium-catalyzed umpolung cyclization of allylic acetate-aldehyde using formate as a reductant?
Chemical Communications Pub Date: 2015-04-03 DOI: 10.1039/C5CC02176F
Abstract
Palladium/chiral diphosphine-catalyzed umpolung cyclization of allylic acetate-aldehyde using formate as a terminal reductant affords cis-disubstituted pyrrolidine, tetrahydrofuran, and spiro carbocycle in high enantioselectivity. The formate does not cause allylpalladium reduction under the catalysis. The highly stereoselective cyclization would proceed through a cationic η1-allylpalladium ligated by diphosphine.
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Journal Name：Chemical Communications
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CAS no.: 89640-58-4
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