Ring-Opening Polymerization of Cyclic Esters by an Enantiopure Heteroscorpionate Rare Earth Initiator

With a sting in its tail: An enantiopure neodymium complex (see scheme) acts as an efficient single-site initiator for the controlled ring-opening polymerization of rac-lactide, forming isotactic polyester. The heteroscorpionate complex was characterized spectroscopically and by X-ray diffraction.

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Bibliographic Details
Published in:Angewandte Chemie (International ed.) 2009-01, Vol.48 (12), p.2176-2179
Main Authors: Otero, Antonio, Fernández-Baeza, Juan, Lara-Sánchez, Agustín, Alonso-Moreno, Carlos, Márquez-Segovia, Isabel, Sánchez-Barba, Luis F, Rodríguez, Ana M
Format: Article
Language:English
Subjects:
enantioselectivity
Metals, Rare Earth - chemistry
neodymium
Neodymium - chemistry
polyesters
Polyesters - chemistry
Polymers - chemistry
ring‐opening polymerization
scorpionate ligands
Stereoisomerism
X-Ray Diffraction
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Summary:With a sting in its tail: An enantiopure neodymium complex (see scheme) acts as an efficient single-site initiator for the controlled ring-opening polymerization of rac-lactide, forming isotactic polyester. The heteroscorpionate complex was characterized spectroscopically and by X-ray diffraction.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.200806202