TL;DR: A heterogeneous catalyst, nanosized MCM-41-Pd, was used to catalyze the Sonogashira coupling of aryl and heteroaryl halides with terminal alkynes in the presence of CuI and triphenylphosphine.

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Abstract: A heterogeneous catalyst, nanosized MCM-41-Pd, was used to catalyze the Sonogashira coupling of aryl and heteroaryl halides with terminal alkynes in the presence of CuI and triphenylphosphine. The coupling products were obtained in high yields using low Pd loadings to 0.01 mol%, and the nanosized MCM-41-Pd catalyst was recovered by centrifugation of the reaction solution and re-used in further runs without significant loss of reactivity.

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66 citations

Journal Article•DOI•

Poly(2,5-thienylene ethynylene) and related oligomers

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Gregory V. Tormos¹, Peter N. Nugara¹, M. V. Lakshmikantham¹, Michael P. Cava¹•Institutions (1)

University of Alabama¹

01 Feb 1993-Synthetic Metals

TL;DR: The palladium-mediated acetylene halide coupling reaction has been employed for the synthesis of thienylethynylene oligomers containing two to five thiophene units as discussed by the authors, which shows no appreciable electrical conductivity on treatment with iodine.

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23 citations

Journal Article•DOI•

Synthesis and spectroscopic characterization of (CO)6Fe2{μ-EC(H)=C(2-Th)E′)(E,E′=S, Se, Te; Th=C4H3S) structural characterization of (CO)6Fe2{μ-SeC(H)=C(2-Th)Se}

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Pradeep Mathur¹, Aswini K. Dash¹, Md. Munkir Hossain¹, C.V.V. Satyanarayana¹, Arnold L. Rheingold², Glenn P. A. Yap², Louise M. Liable-Sands² - Show less +3 more•Institutions (2)

Indian Institute of Technology Bombay¹, University of Delaware²

30 Sep 1997-Journal of Organometallic Chemistry

TL;DR: In this article, a tetrahedral butterfly core containing the thiopheneacetylene as a bridge between the two wingtip Se atoms, with three terminally bonded carbonyl groups on each Fe atom, has been established.

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7 citations

Journal Article•DOI•

A Convenient Method for the Preparation of Thienylacetylenes.

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