Functionalized Benzylic Magnesium Reagents through a Sulfur–Magnesium Exchange

Switch it: Iodobiphenyl thioethers readily undergo an iodine–magnesium exchange followed by, after the addition of tBuOLi, an intramolecular sulfur–magnesium exchange, which provides benzylic magnesium reagents in excellent yield through a fragmentation reaction. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2006/z501882_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.