Abstract
Treatment of copper iodide with 1,1′-bis(diphenylphosphino)ferrocene in 1:1 equivalent ratio afforded centrosymmetric dimer product of composition [{Cu(µ-I)(dppf)}2] (1a). However, similar reactions of 1,1′-bis(diphenylchalcogenophosphoryl)ferrocene (dppfE2) (E = S, Se) with [Cu(CH3CN)4]+ in 1:2 equivalents yielded [{Cu(dppfS2)}n]+ (1b) and [{Cu2(dppfSe2)3}n]2+ (1c) compounds, respectively. These reported compounds have synthesized with slight modifications. All the mentioned complexes were characterized by Uv–Vis, IR, 1H, 31P{1H} NMR spectroscopy and Mass spectrometry. The molecular structure of complex [{Cu(µ-I)(dppf)}2] was established through single crystal X-ray analysis, which suggests distorted tetrahedral geometry around the copper metal center. All the synthesized complexes were studied as a catalyst for synthesis of benzofuran derivatives under an environmentally friendly approach.
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Acknowledgements
One of the authors (SPY) is awarded a Junior Research Fellowship for financial support under University Grant Commission, New Delhi (UGC). SC thanks IISER Mohali for JRF. The authors thank to Dr. Labhini Singla for the single crystal data collection of the complex [{Cu(µ-I)(dppf)}2]. The authors thank DCS, IISER Mohali for providing the X-ray diffraction facility.
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Yadav, S.P., Sahil, D., Dash, C. et al. Copper(I) Complexes Derived from 1,1′-Bis(diphenylphosphino)Ferrocene and Their Derivatives: Synthesis, Structure and Catalytic Studies for One-Pot Synthesis of Benzofuran. Catal Lett 154, 2080–2089 (2024). https://doi.org/10.1007/s10562-023-04457-1
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DOI: https://doi.org/10.1007/s10562-023-04457-1