期刊
TETRAHEDRON LETTERS
卷 45, 期 7, 页码 1367-1370出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2003.12.077
关键词
heterogeneous catalysis; copper-free Sonogashira reaction; palladium-modified zeolite
A heterogeneous [Pd(NH3)(4)]-NaY catalyst was applied to the copper-free Sonogashira cross-coupling of aryl halides with terminal alkynes. This copper-free heterogeneous Pd-catalyst is efficient, stable and recyclable. Aryl iodides and activated aryl bromides were converted quantitatively using 1 mol% Pd-catalyst to the corresponding diaryl-substituted alkynes within 3 h. (C) 2003 Elsevier Ltd. All rights reserved.
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