chapter 2 palladium catalysts in suzuki cross- coupling reaction

temperature, the catalyst was recovered by filtering through a membrane filter with 0.2
μm porosity and washed with ethyl acetate.
Figure 4.2. The experimental set-up for Suzuki coupling reactions
4.3. Characterization of Products
4.3.1. GC Method
The samples were analyzed by GC/MS (HP GC/MS 6890/5973N on a HP-5MS,
30m, 0.25 mm capillary column, 5% phenylmethoxysiloxane with 0.25μm film
thickness) and GC (19091J-413 HP-5 6890N on a 30m, 0.25 mm capillary column (5%
Dimetylsiloxane, 95% phenyldimethylsiloxane with a 0.25 μm film thickness and FID
detector).
The GC program applied throughout the analysis is as follows: the column
temperature was 40 °C at the beginning of the program and it was heated with a rate of
10 °C/min up to 250 °C, then it was kept at this temperature for 3 min. Throughout the
analysis the injector and detector temperatures were kept constant at 280 °C and 300 °C,
respectively. The analysis was performed on split mode with a split ratio of 1/50. A
sample gas chromatogram of the reactant and reaction products according to this
temperature program is given in Figure 4.3.
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