The mechanism of TBD-catalyzed ring-opening polymerization of cyclic esters.

J Org Chem

Unilever Centre for Molecular Science Informatics, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom.

Published: December 2007

AI Article Synopsis

  • Triazabicyclodecene (TBD) is a promising organocatalyst used for the ring-opening polymerization (ROP) of cyclic esters.
  • Our research employed DFT methods to investigate the mechanisms behind this reaction.
  • The findings clarify why the ROP of six-membered ring lactones exhibits a narrow polydispersity index (PDI) and why the more reactive butyrolactone fails to undergo ROP.

Article Abstract

Triazabicyclodecene (TBD) has recently been shown to be an effective organocatalyst for the ring-opening polymerization (ROP) of cyclic esters. Using DFT methods, we have studied possible mechanisms of this reaction. Our studies explain not only the narrow polydispersity index (PDI) observed in the ROP of six-membered ring lactones, but also the surprising failure of the ROP for the more reactive butyrolactone.

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Source
http://dx.doi.org/10.1021/jo702088cDOI Listing

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