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Yue  Ma
Yue Ma

Public Documents 1
Palladium-Catalyzed Enantioselective Intramolecular Heck Dearomative Annulation of In...
Yue  Ma
Cong-Cong  Lu

Yue Ma

and 3 more

January 30, 2024
An elegant Pd(dba)2-catalyzed enantioselective Heck dearomative annulation of indoles and N-tosylhydrazones for the straightforward assembly of structurally diverse optically active indoline scaffolds containing the quaternary carbon centers at the C2-position has been developed. The tandem protocol, which utilized Pd(dba)2/BINOL-based phosphoramidite ligand as the catalytic system, proceeded smoothly through successive oxidative addition, intramolecular carbon palladation, migratory insertion, and reductive elimination se-quences, leading to the chiral indoline derivatives in moderate to excellent yields, with excellent enantioselectivities and diastereoselec-tivities. In addition, the synthetic practicability of the catalytic system was underlined by a scaled-up experiment and the late-stage derivatization of the products, thus highlighting the potential applications in synthetic chemistry, medicinal chemistry, material science.

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