Manganese-Catalyzed Cross-Coupling Reaction between Aryl Grignard Reagents and Alkenyl Halides
作者:Gérard Cahiez、Olivier Gager、Fabien Lecomte
DOI:10.1021/ol802273e
日期:2008.11.20
Aryl Grignard reagents react stereospecifically with alkenylhalides in the presence of manganese chloride (10%) to afford good yields of cross-coupling products.
Organic synthesis using haloboration reactions 11. A formal carboboration reaction of 1-alkynes and its application to the di- and trisubstituted alkene synthesis
prepared by the bromoboration reaction of 1-alkynes with tribromoborane, proceeds in the presence of a palladium catalyst to give 2,2-disubstituted alkenylboranes, which can be used for the di- or tri-substituted alkenesynthesis directly.
Alkyl- and aryllithium compoundswere found to add to alkynes having no heteroatoms in the presence of an iron or iron–copper catalyst to give various trisubstituted vinyllithium compounds.