Regio- and Chemoselective Bromination of 2,3-Diarylcyclopent-2-en-1-ones
作者:Valerii Z. Shirinian、Dmitry V. Lonshakov、Vadim V. Kachala、Igor V. Zavarzin、Alexey A. Shimkin、Andrew G. Lvov、Mikhail M. Krayushkin
DOI:10.1021/jo301474j
日期:2012.9.21
The bromination of 2,3-diarylcyclopent-2-en-1-ones under various conditions has been studied. It was found that depending on the brominating reagent and nature of solvent the bromine atom can be introduced at the 4- or 5-position of the ethene “bridge”, as well as into the aryl moieties. Aryl group bromination is accomplished with such reagents as molecular bromine, N-bromosuccinimide, or tetrabutylammonium