Mondal K, Patra S, Halder P, Mukhopadhyay N, Das P. CuF
2/DMAP-Catalyzed N-Vinylation: Scope and Mechanistic Study.
Org Lett 2023. [PMID:
36546851 DOI:
10.1021/acs.orglett.2c03856]
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Abstract
CuF2/DMAP has been established as an excellent catalytic system for vinylsilane-promoted N-vinylation of amides and azoles at room temperature without an external fluoride source. A mechanism has been proposed on the basis of the isolation of reactive intermediate [Cu(DMAP)4Cl2], fluoride ion-assisted transmetalation, and ultraviolet-visible spectroscopic studies. The catalytic efficiency of the synthesized and structurally characterized [Cu(DMAP)4Cl2] complex has been demonstrated. The valuable monomers for water-soluble polymers, viz., NVP, NVC, and NVIBA, were synthesized on a gram scale.
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