Intermolecular Alkene Difunctionalization via Gold-Catalyzed Oxyarylation.

Area of Science:

• Organic Chemistry
• Catalysis
• Organometallic Chemistry

Background:

• Gold catalysis is a rapidly growing field in organic synthesis.
• Intermolecular oxyarylation of alkenes is a valuable transformation for creating complex molecules.
• Developing efficient and versatile methods for C-O bond formation remains a key challenge.

Purpose of the Study:

• To develop a novel gold-catalyzed intermolecular oxyarylation of alkenes.
• To explore the scope and limitations of this new synthetic methodology.
• To demonstrate the utility of the method for alkene difunctionalization.

Main Methods:

• Utilized a gold(I) precatalyst with a Me-Dalphos ligand.
• Employed aryl iodides as the arylating agents.
• Investigated the reaction mechanism involving a proposed Au(III)-aryl intermediate.

Main Results:

• Achieved efficient intermolecular oxyarylation of various alkenes with aryl iodides.
• Obtained desired products in high yields (up to 95%) across >50 examples.
• Demonstrated one-pot conversion of methoxy groups to other nucleophiles for alkene difunctionalization (C-N, C-S, C-C bond formation).

Conclusions:

• The developed gold-catalyzed oxyarylation offers a versatile and efficient route to functionalized alkenes.
• The method allows for mild and selective difunctionalization, expanding synthetic possibilities.
• This work provides a valuable tool for constructing complex organic molecules.