Unless otherwise noted, all
reactions were performed under an inert atmosphere in a dinitrogen-filled
glovebox. Glovebox purity was maintained by periodic dinitrogen purges
to ensure that the O2 concentration was below 25 ppm. Benzene
was dried by using a solvent purification system with an activated
alumina column. Ethylene and propylene (99.9%) were purchased in gas
cylinders from Linde Gas and Equipment and used as received. All other
reagents were purchased from commercial sources and used as received.
GC-FID was performed using a Shimadzu GC-2014 instrument with a 30
m × 0.32 mm DB-5MS UI column with a 0.25 μm film thickness.
Turnovers were quantified by linear regression analysis of the gas
chromatograms using standard samples of the authentic products purchased
from a commercial source. A plot of peak area ratios vs molar ratios
gave a regression line using hexamethylbenzene as an external standard.
The slopes and correlation coefficients of the regression lines for
the following compounds were as follows: allylbenzene (1.39, 0.999),
α-methylstyrene (1.24, 0.999), cis-β-methylstyrene
(1.48, 0.999), trans-β-methylstyrene (1.38,
0.999), biphenyl (0.96, 0.999), phenyl-2-ethylhexanonate (1.03, 0.999),
and styrene (1.78, 0.999).
reactions were performed under an inert atmosphere in a dinitrogen-filled
glovebox. Glovebox purity was maintained by periodic dinitrogen purges
to ensure that the O2 concentration was below 25 ppm. Benzene
was dried by using a solvent purification system with an activated
alumina column. Ethylene and propylene (99.9%) were purchased in gas
cylinders from Linde Gas and Equipment and used as received. All other
reagents were purchased from commercial sources and used as received.
GC-FID was performed using a Shimadzu GC-2014 instrument with a 30
m × 0.32 mm DB-5MS UI column with a 0.25 μm film thickness.
Turnovers were quantified by linear regression analysis of the gas
chromatograms using standard samples of the authentic products purchased
from a commercial source. A plot of peak area ratios vs molar ratios
gave a regression line using hexamethylbenzene as an external standard.
The slopes and correlation coefficients of the regression lines for
the following compounds were as follows: allylbenzene (1.39, 0.999),
α-methylstyrene (1.24, 0.999), cis-β-methylstyrene
(1.48, 0.999), trans-β-methylstyrene (1.38,
0.999), biphenyl (0.96, 0.999), phenyl-2-ethylhexanonate (1.03, 0.999),
and styrene (1.78, 0.999).