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Title: C-H Activation and Palladium Migration within Biaryls under Heck Reaction Conditions
Authors: Gunter Karig
Maria Teresa Moon
Nopporn Thasana
Timothy Gallagher
University of Bristol
Chulabhorn Research Institute
Mahidol University
Keywords: Biochemistry, Genetics and Molecular Biology;Chemistry
Issue Date: 5-Sep-2002
Citation: Organic Letters. Vol.4, No.18 (2002), 3115-3118
Abstract: (Equation Presented) Biaryl bromides such as 1 (R=NO2, H, OMe) undergo the Heck reaction to give both the expected products 3 ("retention") as well as "crossover" products 4 derived from a migration of Pd and net transfer of reactivity from one aryl ring to the other. Under the conditions used, crossover is increasingly favored when electron-deficient arenes are involved. Crossover products derived from transfer onto the pyridine ring have also been observed.
ISSN: 15237060
Appears in Collections:Scopus 2001-2005

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