Expected and unexpected reactivities of homoleptic LiNacNac and heteroleptic NacNacMg(TMP) β-diketiminates towards various small unsaturated organic molecules

Richard M. Gauld, Jennifer R. Lynch, Alan R. Kennedy, Jim Barker, Jacqueline Reid, Robert E. Mulvey

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Abstract

Homoleptic LiNacNac forms simple donor-acceptor complexes with N,N′-dicyclohexylcarbodiimide (CyN= C= NCy), triphenylphosphine oxide (Ph3P= O), and benzophenone (Ph2CO). These crystallographically characterized compounds could be regarded as model intermediates en route to reducing the N= C, P= O, and C= O bonds of unsaturated substrates. Heteroleptic NacNacMg(TMP) intriguingly functions as a TMP nucleophile both with t-BuNCO and t-BuNCS, producing a urea or thiourea derivative respectively attached to Mg, though the NacNac ligand in the former reaction also engages noninnocently with a second t-BuNCO molecule via insertion at the reactive NacNac backbone γ-carbon site.

Original languageEnglish
Pages (from-to)6057-6064
Number of pages8
JournalInorganic Chemistry
Volume60
Issue number8
Early online date8 Apr 2021
DOIs
Publication statusPublished - 19 Apr 2021

Keywords

  • NacNac ligand
  • LiNacNac
  • organic ligands

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