Diastereoselective Alkene Hydroesterification Enabling the Synthesis of Chiral Fused Bicyclic Lactones

Pd-Catalyzed Enantioselective Hydroamidocarbonylation of α-Substituted Acrylamides to Chiral Succinimides

With the aid of an innate amide group, an intramolecular Pd-catalyzed enantioselective hydroamidocarbonylation reaction of α-substituted acrylamides was developed, and a series of chiral 2-substituted succinimides were obtained in moderate to high yields and enantioselectivities. The generality of this approach was demonstrated by the carbonylation of both aryl- and alkyl-substituted acrylamides containing numerous functional groups.

Pd-Catalyzed carbonylative lactonization of 2-halidearomatic aldehydes with H2O as a nucleophile

A palladium-catalyzed carbonylative cyclization reaction of 2-halidebenzaldehydes with H₂O is described, which provides a strategy for the synthesis of diversely substituted 3,3'-oxyphthalides. Notably, the obtained 3,3'-oxyphthalide could be easily transformed into 3-aryl and alkyl phthalides with excellent efficiency using organozinc reagents under mild reaction conditions.

Assembling Chiral Center of Heterocycles by Palladium-catalyzed Asymmetric Hydrocarbonylation

The strategy of embedding coordinative functional group into the starting material is frequently employed to enhance reactivity and enantioselectivity in various asymmetric catalytic reactions other than enantioselective hydrocarbonylation. Recent progress in palladium-catalyzed asymmetric hydrocarbonylation with this strategy for the synthesis of chiral heterocycles was highlighted. The merits of the innate coordinative functional group not only enhance the reactivity and boost the multiple selectivity, but also facilitates the synthesis of chiral heterocycles.