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Thus, iron nanoparticles stabilized by 1,6-bis(diphenylphosphino)hexane or polyethylene glycol exhibit high activity for the crosscoupling of aryl Grignard reagents with primary and secondary alkyl halides bearing b-hydrogen atoms. This catalyst has also proven to be effective in a tandem ring-closing/crosscoupling reaction. Magnetically separable mesoporous carbons constructed from mesocellular carbon and Fe/Fe3O4 core-shell ferromagnetic nanoparticles 注意：前后两句没有关系，后面一句只是一个复杂的主语 [ Last edited by fxhzfmcg on 2009-9-16 at 16:59 ] |
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