Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5284707 | Tetrahedron Letters | 2006 | 5 Pages |
Abstract
Simple catalysts formed in situ from palladium acetate and a variety of imidazolium and imidazolinium carboxylates and dithiocarboxylates have been screened in the coupling of aryl halides with trans-2-phenylvinylboronic acid. Imidazol(in)ium carboxylates show an excellent activity, which compares to that displayed by the parent imidazol(in)ium chlorides, whereas imidazol(in)ium dithiocarboxylates are poorly efficient. Interestingly, the base employed exerts a profound influence on the trans/cis stereochemistry of the coupling product.
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Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Adriana Tudose, Lionel Delaude, Benoît André, Albert Demonceau,