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N-Heterocyclic Carbene Boranes Accelerate Type I Radical Photopolymerizations and Overcome Oxygen Inhibition
To protect and serve: The efficiency of Type I radical photoinitiators for acrylate polymerization is greatly increased by the presence of NHC‐boranes. Conversion of the initially photogenerated radicals, R. (see scheme), into strongly nucleophilic NHC‐boryl radicals, through hydrogen‐atom transfer,...
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Published in: | Angewandte Chemie International Edition 2012-06, Vol.51 (24), p.5958-5961 |
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Main Authors: | , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | To protect and serve: The efficiency of Type I radical photoinitiators for acrylate polymerization is greatly increased by the presence of NHC‐boranes. Conversion of the initially photogenerated radicals, R. (see scheme), into strongly nucleophilic NHC‐boryl radicals, through hydrogen‐atom transfer, gives a better matched radical for subsequent reaction with monomer, ensuring better initiation. |
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ISSN: | 1433-7851 1521-3773 |
DOI: | 10.1002/anie.201200975 |