1492
B. W. Yoo, J. W. Choi, and M. H. Yang
resulting mixture was stirred at room temperature for 0.5 h under sonica-
tion to get a solution of the low-valent iron–indium complex. Sonication
was carried out in a Bransonic ultrasonic cleaner bath, which delivered a
A7-KHz ware with a fixed electrical power of 125 W. 1,2-Dibromoethyl-
benzene (264 mg, 1.0 mmol) was then added to this solution, and the
reaction mixture was stirred for 30 min at room temperature. The solvent
was removed under reduced pressure, and the residue was extracted with
ether, washed with brine, and dried over anhydrous Na2SO4. The crude
product was purified by silica-gel column chromatography (hexane–ethyl
acetate ¼ 10:1) to afford styrene (99 mg, 95%). All of the products are
commercially available compounds, and their identification was based
on spectral comparison with authentic samples.
ACKNOWLEDGMENT
This work was supported by a Korea University grant.
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