期刊
INORGANIC CHEMISTRY COMMUNICATIONS
卷 13, 期 11, 页码 1329-1331出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.inoche.2010.07.028
关键词
Mizoroki-Heck reactions; Phosphite; Palladium; Aryl halides; Alkenes; Coupling reactions
资金
- Korea government (MEST) [R0A-2008-000-20012-0]
- Korean Ministry of Knowledge Economy
- National Research Foundation of Korea [R0A-2008-000-20012-0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
A new catalytic system based on palladium-phosphite for Mizoroki-Heck coupling reactions of aryl iodide and bromide is described. An air-stable phosphite ligand afforded the desired products with high yields in the palladium-catalyzed Mizoroki-Heck reactions. The coupling of aryl iodides was optimized with 0.5 mol% Pd(OAc)(2), 1 mol% phosphite 2, and K(2)CO(3) in DMF solvent. For the coupling of aryl bromides, 1 mol% Pd (OAc)(2) and 5 mol% phosphite 2 were required with Na(2)CO(3) as base. As a coupling partner alkene, n-butyl acrylate, t-butyl acrylate, styrene and N-t-butyl acrylamide all showed good yields. (C) 2010 Elsevier B.V. All rights reserved.
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