Issue 34, 2006
From the journal:

Dalton Transactions

Phenoxytriamine complexes of yttrium: synthesis, structure and use in the polymerization of lactide and ε-caprolactone†

Ian Westmorelanda  and  John Arnold*a  

* Corresponding authors

a Department of Chemistry, University of California, Berkeley and the Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA

Abstract

Reaction of the phenoxytriamine proligands 2,4-dimethyl-6-bis(2-(diethylamino)ethyl)aminomethlyphenol (HL1) and 2,4-di-tert-butyl-6-bis(2-(diethylamino)ethyl)aminomethylphenol (HL2) with Y[N(SiMe2H)2]3(THF)2 in pentane gave the momomeric complexes L1Y[N(SiMe2H)2]2 (1) and L2Y[N(SiMe2H)2]2 (2). X-Ray structural analysis of 2 shows a 5-coordinate yttrium center. The complexes 1 and 2 catalyze the ring opening polymerization of D-L-lactide and ε-caprolactone leading to narrow product polydispersities under mild conditions.

Graphical abstract: Phenoxytriamine complexes of yttrium: synthesis, structure and use in the polymerization of lactide and ε-caprolactone

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Article information

DOI
https://doi.org/10.1039/B600939E
Article type
Paper
Submitted
20 Jan 2006
Accepted
30 May 2006
First published
15 Jun 2006

Dalton Trans., 2006, 4155-4163

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Phenoxytriamine complexes of yttrium: synthesis, structure and use in the polymerization of lactide and ε-caprolactone

I. Westmoreland and J. Arnold, Dalton Trans., 2006, 4155 DOI: 10.1039/B600939E

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