2006

200620.fm Page 70 Thursday, April 13, 2006 1:02 PM

AlkenesQ 0083 Vinylation of Aryl Bromides Using an Inexpensive Vinylpolysiloxane. — A gener-

al method is developed to give a variety of vinylarenes in high yields. Electron-defi-cient aryl bromides react faster than electron-rich substrates; however, the yields are not affected. The reaction is scalable. — (DENMARK*, S. E.; BUTLER, C. R.; Org. Lett. 8 (2006) 1, 63-66; Dep. Chem., Univ. Ill., Urbana, IL 61801, USA; Eng.) —R. Steudel

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