135530-70-0Relevant academic research and scientific papers
Alkaline earth metal complexes of a chiral polyether as initiator for the ring-opening polymerization of lactide
Davin, Julien P.,Buffet, Jean-Charles,Spaniol, Thomas P.,Okuda, Jun
, p. 12612 - 12618,7 (2020/09/09)
A chiral, tetradentate polyether ligand with a trans-1,2-cyclohexanediyl backbone, bis(methoxyethoxy)-trans-1,2-cyclohexane (5), was synthesized as both a racemate and the (S,S) enantiomer. 5 was found to form stable adducts with alkaline earth metal amides [M{N(SiMe3)2} 2(thf)x] (M = Mg (x = 0), Ca (x = 2) and Sr (x = 2/3)), [Ca{N(SiHMe2)2}2(thf)] as well as with hydrocarbyl compounds [Mg(CH2SiMe3)2] and [Ca(η3-C3H5)2]. X-ray diffraction study of the bis(amide) [((S,S)-5)Ca{N(SiMe3) 2}2] and of the bis(allyl) [(rac-5)Ca(η3- C3H5)2] was performed. The complexes obtained were tested as initiators for the ring-opening polymerization of meso-, racemic and l-lactide.
