Work

Pd(II)/PIDA‐Enabled Migratory Triple Functionalization of Terminal Alkenes via a 1,2‐C/Pd(IV) Dyotropic Rearrangement

Year: 2025

Type: article

Abstract: We report a Pd(II)‐catalyzed migratory triple functionalization of terminal alkenes. The reaction of homoallylic amides with phenyliodine(III) diacetate (PIDA) under Pd(II) catalysis delivers 6‐acetoxylated 5,6‐dihydro‐4 H ‐1,3‐oxazines through the formation of one C─C and two C─O bonds. Mechanistic studies suggest a sequence involving oxypalladation, oxidation of Pd(II) to Pd(IV), a 1,2‐alkyl(aryl)/Pd(IV) dyotropic rearrangement (DR), and subsequent acetoxylation. While Pd(II)/Pd(IV) catalysis with PIDA as the oxidant has enabled numerous powerful transformations, the DR reported here is unprecedented.

Source: Angewandte Chemie

DOI: 10.1002/ange.202518735

Authors: Chen‐Xu Liu, Qian Wang, Jieping Zhu

Institution: École Polytechnique Fédérale de Lausanne

Language: English

Topic: Oxidative Organic Chemistry Reactions

Subfield: Organic Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $5,790

Funders: École Polytechnique Fédérale de Lausanne, Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung