Palladium-Catalyzed C–H Alkenylation of Arenes Using Thioethers as Directing Groups
Organic Letters2012Vol. 14(8), pp. 2164–2167
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Abstract
Thioethers have been proven to be reliable directing groups for palladium catalyzed alkenylation of arenes via C-H activation. Mechanistic investigation reveals that the C-H cleavage of arenes is the turnover-limiting step, and an acetate-bridged dinuclear cyclopalladation intermediate is involved. The alkenylated thioethers can be easily removed and transformed into a variety of useful groups.
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