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Typical Procedure for the Mizoroki–Heck Coupling Reaction
of Aryl Halides with Acrylates
Under nitrogen atmosphere, Pd–NHCs (1.0 mol%), aryl halides
(0.50 mmol), acrylates (0.60 mmol), K2CO3 (0.75 mmol) and DMF
(1.0 ml) were added to a dried Schlenk tube. The mixture was
stirred at 100°C for 24 h. The reaction mixture was cooled, diluted
with EtOAc, washed with saturated brine, dried over anhydrous
MgSO4 and purified by column chromatography on silica gel.
The purity of the compounds was checked by NMR and yields
are based on aryl halides.
Crystal Structure Determination of Pd(II)–NHC Complexes
The structures were solved by direct methods using the program
SHELXTL and all non-hydrogen atoms were refined anisotropically
on F2 by the full-matrix least-squares technique using the SHELXTL
crystallographic software package.[12] The hydrogen atom positions
were generated using a riding model. Crystallographic data and
pertinent refinement parameters for 2a and 2b are presented in
Table 3.
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Acknowledgments
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Financial support from the Applied Basic Research Projects of
Yunnan Province (No. 2013FZ043), the Key Projects of Scientific
Research Fund of Yunnan Education Department (No. 22012Z017)
and the Youth Scientific Fund Projects of Yunnan Normal University
is greatly appreciated.
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