cheminform abstract: preparation of potassium alkynylaryltrifluoroborates from...
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Polyphenylalkyne derivativesQ 0750 DOI: 10.1002/chin.201029104
Preparation of Potassium Alkynylaryltrifluoroborates from Haloaryltrifluoro-borates via Sonogashira Coupling Reaction. — Various alkyne-functionalized organotrifluoroborates (III) are prepared starting from iodide (I) and terminal alkynes. Bromides bearing additional substituents in para or meta position are also reactive, whereas an ortho-substitution is found to be complex. Trifluoroborates of type (III) are subjected to microwave-irradiated cross-coupling with aryl- and alkenyl bromides to give the products with good yields in a short reaction time. — (KIM, D.-S.; HAM*, J.; Org. Lett. 12 (2010) 5, 1092-1095; Nat. Prod. Res. Cent., Korea Inst. Sci. Technol., Gangwon, Gangneung 210-340, S. Korea; Eng.) — R. Simon
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ChemInform 2010, 41, issue 29 © 2010 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
www.cheminform.wiley-vch.de
ChemInform 2010, 41, issue 29 © 2010 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim