Journal
TETRAHEDRON LETTERS
Volume 52, Issue 15, Pages 1738-1741Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2011.01.121
Keywords
Pyridinium N-aminides; Sonogashira; Microwaves; DABCO
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Funding
- Comision Interministerial de Ciencia y Tecnologia [CTQ2008-05027/BQU208902]
- Instituto de Salud Carlos III [RD06/0016/0016]
- Universidad de Alcala (UAH)
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The reactivity of N-(5-iodopyridin-2-yl)aminide in a copper-free Sonogashira cross-coupling process is reported. The reaction proceeds on using PdCl2(PPh3)(2) and DABCO as the base under microwave irradiation in acetonitrile or water as solvents. The process can also be carried out by traditional heating in acetonitrile on using Pd(AcO)(2)/DABCO with Cs2CO3. (C) 2011 Elsevier Ltd. All rights reserved.
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