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β‐Diketiminato–Alkaline Earth Cationic Complexes: Synthesis, Structures, Lactide Polymerization and Unusual Oxidative Reactivity of the Ancillary Ligand
Author(s) -
Liu Bo,
Dorcet Vincent,
Maron Laurent,
Carpentier JeanFrançois,
Sarazin Yann
Publication year - 2012
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201200183
Subject(s) - chemistry , cationic polymerization , reactivity (psychology) , polymerization , alkaline earth metal , ligand (biochemistry) , electrophile , polymer chemistry , strontium , catalysis , lactide , ring opening polymerization , combinatorial chemistry , organic chemistry , alkali metal , polymer , receptor , medicine , biochemistry , alternative medicine , pathology
Well‐defined (β‐diketiminate)calcium and ‐strontium cationic complexes paired with weakly coordinating anions have been prepared in high yields by straightforward protocols. These highly electrophilic species are efficient catalysts for the immortal ring‐opening polymerization of lactide and display unusual reactivity by providing a unique example of oxidation of a {BDI i Pr } core to give a diiminoalkoxide.