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PubMed Publications| Keyword search (4,164 papers available) |  |
"Paul G Loncke" Authored Publications:
| Title | Authors | PubMed ID | |
|---|---|---|---|
| 1 | Substituent effects and the role of negative hyperconjugation in siloxycarbene rearrangements | Paul G Loncke | 15917909 CERMM |
| Title: | Substituent effects and the role of negative hyperconjugation in siloxycarbene rearrangements | ||||
| Authors: | Paul G Loncke | ||||
| Link: | https://pubmed.ncbi.nlm.nih.gov/15917909/ | ||||
| DOI: | 10.1039/b416058d | ||||
| Publication: | Organic & biomolecular chemistry | ||||
| Keywords: | |||||
| PMID: | 15917909 | Category: | Date Added: | 2005-05-27 | |
| Dept Affiliation: |
CERMM
1 Centre for Research in Molecular Modeling, Concordia University, Montreal, Quebec, Canada H4B 1R6. |
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Description: |
Substituent effects and the role of negative hyperconjugation in 1,2-silyl migration and decarbonylation of methoxy(substituted-siloxy)carbenes have been investigated using quantum chemical calculations and natural bond orbital analysis. It has been found that sigma-electron-withdrawing substituents generally lower the barriers for 1,2-silyl migration and decarbonylation, consistent with symmetry-forbidden concerted rearrangements involving intramolecular front-side nucleophilic attack by the... |
