Cu-I Complexes with a Noninnocent PNP Ligand: Selective Dearomatization and Electrophilic Addition Reactivity

Jarl Ivar van der Vlugt, Evgeny A. Pidko, Dieter Vogt, Martin Lutz, Anthony L. Spek

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The neutral, T-shaped complex Cu-I((PN-PtBu)) (2), featuring a dearomatized 2,6-bis(diphosphino)pyridine (PNP)-pincer ligand, is shown to interact rapidly with electrophiles. This has enabled the synthesis of acetato complex 3. Furthermore, C-C bond formation onto the deprotonated methylene-bridgehead carbon is observed with MeOTf as the electrophile. This represents the first case of selective modification of the lutidine-based backbone of such noninnocent PNP ligands. Theoretical calculations support the formation of monomeric complex 2 and indicate the high reactivity of the methylene fragment in this Cu-I complex.

Original languageEnglish
Pages (from-to)7513-7515
Number of pages3
JournalInorganic Chemistry
Issue number16
Publication statusPublished - 17 Aug 2009

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