科研之友
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摘要
An efficient cobalt-catalyzed method for the direct con jugate addition of functionalized aryl halides or triflates onto methyl vinyl ketone is described. The experimentally simple procedure relies on the use of a catalytic system consisting of CoBr(2)(Bpy) and zinc and does not require the preformation of a stoichiometric organometallic species. The approach described herein displays considerable functional-group compatibility at good to excellent yields.
- 出版日期2009-4-23
