Introduction of abnormal N-heterocyclic carbene as an efficient organocatalyst: ring opening polymerization of cyclic esters

The recently isolated abnormal N-heterocyclic carbene (aNHC) has been established as an efficient organocatalyst in ring opening polymerization of three different cyclic esters rac-lactide (rac-LA), ε-caprolactone (ε-CL), and δ-valerolactone (δ-VL). Preliminary DFT calculations indicate that aNHC ca...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2011-01, Vol.47 (43), p.11972-11974
Main Authors: Sen, Tamal K, Sau, Samaresh Ch, Mukherjee, Arup, Modak, Arghya, Mandal, Swadhin K, Koley, Debasis
Format: Article
Language:English
Subjects:
Caproates - chemistry
Carbenes
Catalysis
Dioxanes - chemistry
Esters
Heterocyclic Compounds - chemistry
Hydrogen Bonding
Lactones - chemistry
Mathematical analysis
Methane - analogs & derivatives
Methane - chemistry
Polymerization
Ring opening polymerization
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Summary:The recently isolated abnormal N-heterocyclic carbene (aNHC) has been established as an efficient organocatalyst in ring opening polymerization of three different cyclic esters rac-lactide (rac-LA), ε-caprolactone (ε-CL), and δ-valerolactone (δ-VL). Preliminary DFT calculations indicate that aNHC can be a better organocatalyst than the corresponding nNHC counterpart.
ISSN:1359-7345
1364-548X
DOI:10.1039/c1cc15032d