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Zwitterionic bis(phenolate)amine lanthanide complexes for the ring-opening polymerisation of cyclic esters.

Abstract:
The reaction of Sm{N(SiMe3)2}3 with the bis(phenol)amines H2O2N(R) (H2O2N(R) = RCH2CH2N(2-HO-3,5-C6H2(t)Bu2)2; R = OMe, NMe2 or Me) gave exclusively zwitterions Sm(O2N(R))(HO2N(R)). For R = OMe or NMe2 these were efficient catalysts for the ring-opening polymerisation of epsilon-caprolactone and D,L-lactide with a tendency to form cyclic esters; in contrast, no polymerisation was observed for R = Me.
Publication status:
Published

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Publisher copy:
10.1039/b714583g

Authors


Huijser, S More by this author
Schwarz, AD More by this author
Duchateau, R More by this author
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Journal:
Dalton transactions (Cambridge, England : 2003)
Issue:
1
Pages:
32-35
Publication date:
2008-01-05
DOI:
EISSN:
1477-9234
ISSN:
1477-9226
URN:
uuid:efbbbec5-96f0-4de8-8048-41aea2341459
Source identifiers:
51054
Local pid:
pubs:51054

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