Evidence for Iron‐Catalyzed α‐Phosphinidene Elimination with Phenylphosphine

Publisher: John Wiley & Sons Inc

E-ISSN: 1521-3765|24|11|2554-2557

ISSN: 0947-6539

Source: CHEMISTRY - A EUROPEAN JOURNAL, Vol.24, Iss.11, 2018-02, pp. : 2554-2557

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Abstract

AbstractThe ubiquitous half‐sandwich iron complex [CpFe(CO)2Me] (Cp=η5‐C5H5) appears to be a catalyst for α‐phosphinidene elimination from primary phosphines. Dehydrocoupling reactions provided initial insight into this unusual reaction mechanism, and trapping reactions with organic substrates gave products consistent with an α elimination mechanism, including a rare example of a three‐component reaction. The substrate scope of this reaction is consistent with generation of a triplet phosphinidene. In all, this study presents catalytic phosphinidene transfer to unsaturated organic substrates.