Synthesis, Characterization, and Unique Catalytic Activities of a Fluorinated Nickel Enolate
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https://figshare.com/articles/dataset/Synthesis_Characterization_and_Unique_Catalytic_Activities_of_a_Fluorinated_Nickel_Enolate/2187274
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资源简介：
We have synthesized a new nickel
enolate [(PhCOCF2)Ni(dcpe)][FB(C6F5)3] featuring fluorine atoms on the
enolate moiety via B(C6F5)3-promoted
C–F bond activation of α,α,α-trifluoroacetophenone.
X-ray diffraction study of [(PhCOCF2)Ni(dcpe)][FB(C6F5)3] revealed that the complex had
adopted an η3-oxallyl coordination mode in the crystal
lattice. The reaction of tBuNC with [(PhCOCF2)Ni(dcpe)][FB(C6F5)3] resulted
in the coordination of isocyanide to the nickel center to form a C-bound
enolate complex. The reactions of [(PhCOCF2)Ni(dcpe)][FB(C6F5)3] with aldehydes gave insertion
products quantitatively which were fully characterized by NMR spectroscopy.
Furthermore, we established unique catalytic applications for [(PhCOCF2)Ni(dcpe)][FB(C6F5)3] toward
a Tishchenko reaction, along with a highly selective crossed-esterification
of α,α,α-trifluoroacetophenones with aldehydes.
创建时间：
2016-02-14
