Stereoselective synthesis of Z alkenyl halides via Julia olefination |
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Authors: | Lebrun Marie-Eve Le Marquand Paul Berthelette Carl |
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Institution: | Department of Medicinal Chemistry, Merck Frosst Centre for Therapeutic Research, Post Office Box 1005, Pointe-Claire/Dorval, Québec H9R 4P8, Canada. |
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Abstract: | Julia olefination between alpha-halomethyl sulfones and a variety of aldehydes afforded alkenyl halides in good to excellent yields with high E/Z stereoselectivities. Sulfones were readily prepared in two or three steps from commercially available reagents in good yields. Optimization revealed that the nature of the solvent, the base, and the additive were crucial to obtain the desired alkenyl halides. |
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