Analogies between metallaboratranes, triboronates, and boron pincer ligand complexes

Anthony F. Hill, Stephen B. Lee, James Park, Rong Shang, Anthony C. Willis

    Research output: Contribution to journalArticlepeer-review

    56 Citations (Scopus)

    Abstract

    The reaction of [RuRCl(CO)(PPh3)2] (R = C 6H5, CH=CHPh) with the Yamashita-Nozaki ligand C 6H4{N(CH2PPh2)}2BH (dppBH) results in facile elimination of benzene or styrene and formation of the ruthenium [PBP]- pincer complex [Ru{κ3B,P,P′- dppB)Cl(CO)(PPh3)] via a stepwise sequence that recalls the formation of the ruthenaboratrane [Ru(CO)(PPh3){B(mt)3}] (mt = methimazolyl) from [RuRCl(CO)(PPh3)2] and Na[HB(mt) 3]. This analogy is explored herein, including observations regarding notionally similar processes for triboronate ligands. Thus, while the major product of the reaction of [Ru(C6H5)Cl(CO)(PPh 3)2] with [nBu4N][B 3H8] is the phenylruthenatetraborane [B3H 8Ru(C6H5)(CO)(PPh3)2], the hydrido complex [B3H8RuH(CO)(PPh3) 2] is also obtained, consistent with alcoholic transfer hydrogenation of the putative complex [B3H7Ru(CO)(PPh3) 2].

    Original languageEnglish
    Pages (from-to)5661-5669
    Number of pages9
    JournalOrganometallics
    Volume29
    Issue number21
    DOIs
    Publication statusPublished - 8 Nov 2010

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