Kumada cross-coupling reactions, palladium alkyl halides

Hayashi, T., Konishi, M., Kumada, M. Dichloro[1,1 -bis(diphenylphosphino)ferrocene]palladium(ll) an effective catalyst for cross-coupling reaction of a secondary alkyl Grignard reagent with organic halides. Tetrahedron Lett. 1979,1871-1874. 

Representative examples of the application of Pd/PCy3 to Kumada-Mura-hashi couplings of primary alkyl chlorides are illustrated in Table 8 (entries 1-5). In contrast to most other palladium-based methods for cross-coupling alkyl electrophiles, the reaction proceeds well even for a p-branched alkyl halide (entry 2). 

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