Samples were taken and prepared as in the Section 3.7.1 and the conversion was calculated in the same way.
The conversion of 4-phenyl-2-butanone was monitored by chromatography with flame ionization detector (GC-FID, Agilent 7890B, Santa Clara, CA, USA) with CP-Chirasil-Dex CB capillary column (Agilent J&W, 25 m × 0.25 mm × 0.25 µm) and hydrogen (H2) as the carrier gas with a flow of 1.15 mL/min. The injection volume was 1 µL with a 50:1 split. The oven temperature was initially 80 °C, then increased to 200 °C with a gradient of 5 °C/min, and was held for 3 min.
The conversion of 3′-hydroxyacetophenone was monitored by chromatography with flame ionization detector (GC-FID, Agilent 7890B, Santa Clara, CA, USA) with CP-Chirasil-Dex CB capillary column (Agilent J&W, 25 m × 0.25 mm × 0.25 µm) and hydrogen (H2) as the carrier gas with a flow of 1.15 mL/min. The injection volume was 1 µL with a 100:1 split. The oven temperature was initially 90 °C, then increased to 150 °C with a gradient of 30 °C/min, and was held for 15 min. Then increased to 200 °C with a gradient of 30 °C/min, and was held for 2 min.
The conversion of 4-phenyl-2-butanone was monitored by chromatography with flame ionization detector (GC-FID, Agilent 7890B, Santa Clara, CA, USA) with CP-Chirasil-Dex CB capillary column (Agilent J&W, 25 m × 0.25 mm × 0.25 µm) and hydrogen (H2) as the carrier gas with a flow of 1.15 mL/min. The injection volume was 1 µL with a 50:1 split. The oven temperature was initially 80 °C, then increased to 200 °C with a gradient of 5 °C/min, and was held for 3 min.
The conversion of 3′-hydroxyacetophenone was monitored by chromatography with flame ionization detector (GC-FID, Agilent 7890B, Santa Clara, CA, USA) with CP-Chirasil-Dex CB capillary column (Agilent J&W, 25 m × 0.25 mm × 0.25 µm) and hydrogen (H2) as the carrier gas with a flow of 1.15 mL/min. The injection volume was 1 µL with a 100:1 split. The oven temperature was initially 90 °C, then increased to 150 °C with a gradient of 30 °C/min, and was held for 15 min. Then increased to 200 °C with a gradient of 30 °C/min, and was held for 2 min.