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2005
Alkynes
Q 0087
02- 067
Palladium-Catalyzed Cross-Coupling of Aryl Electrophiles with Dimethylalkynylaluminum Reagents. — The title reactions are investigated using alkynyldimethylaluminum reagents and various aromatic and heterocyclic halides in the presence of
palladium. The reaction proceeds very efficiently and provides internal alkynes in
excellent yields. Iodide (XIII) does not react in a usual way. It is assumed to cocatalyze
the alkyne homodimerization of (II). — (WANG, B.; BONIN*, M.; MICOUIN, L.;
Org. Lett. 6 (2004) 20, 3481-3484; Lab. Chim. Ther., Fac. Sci. Pharm. Biol., Univ.
Rene Descartes, F-75006 Paris, Fr.; Eng.) — Steudel
2005
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