Two β-Diketiminate Zinc Complexes with 1-D Chain and Dinuclear Topologies: Synthesis, Structures, and Catalytic Behavior

Two zinc complexes, [(LZn2Et2)-Zn-1](n) (1) and [(LZn2Et2)-Zn-2] (2), were synthesized by reacting bis(beta-diketiminate) ligands H2L1 and H2L1 with ZnEt2. X-ray single-crystal diffraction analysis indicated that compound 1 displays a novel one-dimensional chain structure. Compound 2 is dinuclear. The two compounds were employed to catalyze the coupling reaction of aryl iodides with B(2)Pin(2). They were both catalytically active toward this transformation. Compound 1 exhibited higher catalytic activity than that of complex 2. The borylation reactions catalyzed by 1 possess the features of milder conditions, high functional group tolerance and wide range of substrate scopes.

Automated summary

Two new zinc complexes, [(LZn2Et2)-Zn-1](n) (1) and [(LZn2Et2)-Zn-2] (2), were synthesized and found to be catalytically active towards the coupling reaction of aryl iodides with B(2)Pin(2). Compound 1 exhibited higher catalytic activity compared to compound 2.