Enantioselective synthesis of monofluorinated allylic compounds: Pd-catalyzed asymmetric allylations of dimethyl 2-fluoromalonate using new N-sulfinyl-based ligands?
Organic & Biomolecular Chemistry Pub Date: 2015-08-06 DOI: 10.1039/C5OB01434D
Abstract
New chiral S,N- and S,P-ligands starting from tert-butanesulfinamide were synthesized in four steps, applying Pd-catalyzed asymmetric allylic substitutions of dimethyl 2-fluoromalonate. The induced effect of the Pd/S,N-ligand catalyst on the enantioselectivity depends on the steric demand of the substituent at the o-position of the pyridine ring. This method produced monofluorinated allylation products in up to high yield with high enantioselectivity.
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Journal Name：Organic & Biomolecular Chemistry
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CAS no.: 89640-58-4
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