Journal of the American Chemical Society, volume 137, issue 8, pages 2958-2966

1,3-Dipolar Cycloaddition Reactivities of Perfluorinated Aryl Azides with Enamines and Strained Dipolarophiles

Sheng Xie 1
Steven R. Lopez 2
Olof Ramström 1
Mingdi Yan 1, 3
Publication typeJournal Article
Publication date2015-02-18
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor15
ISSN00027863, 15205126
PubMed ID:  25553488
General Chemistry
Catalysis
Biochemistry
Colloid and Surface Chemistry
Abstract
The reactivities of enamines and predistorted (strained) dipolarophiles toward perfluoroaryl azides (PFAAs) were explored experimentally and computationally. Kinetic analyses indicate that PFAAs undergo (3 + 2) cycloadditions with enamines up to 4 orders of magnitude faster than phenyl azide reacts with these dipolarophiles. DFT calculations were used to identify the origin of this rate acceleration. Orbital interactions between the cycloaddends are larger due to the relatively low-lying LUMO of PFAAs. The triazolines resulting from PFAA–enamine cycloadditions rearrange to amidines at room temperature, while (3 + 2) cycloadditions of enamines and phenyl azide yield stable, isolable triazolines. The 1,3-dipolar cycloadditions of norbornene and DIBAC also show increased reactivity toward PFAAs over phenyl azide but are slower than enamine–azide cycloadditions.

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GOST |
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GOST Copy
Xie S. et al. 1,3-Dipolar Cycloaddition Reactivities of Perfluorinated Aryl Azides with Enamines and Strained Dipolarophiles // Journal of the American Chemical Society. 2015. Vol. 137. No. 8. pp. 2958-2966.
GOST all authors (up to 50) Copy
Xie S., Lopez S. R., Ramström O., Yan M., Houk K. N. 1,3-Dipolar Cycloaddition Reactivities of Perfluorinated Aryl Azides with Enamines and Strained Dipolarophiles // Journal of the American Chemical Society. 2015. Vol. 137. No. 8. pp. 2958-2966.
RIS |
Cite this
RIS Copy
TY - JOUR
DO - 10.1021/ja511457g
UR - https://doi.org/10.1021/ja511457g
TI - 1,3-Dipolar Cycloaddition Reactivities of Perfluorinated Aryl Azides with Enamines and Strained Dipolarophiles
T2 - Journal of the American Chemical Society
AU - Xie, Sheng
AU - Lopez, Steven R.
AU - Ramström, Olof
AU - Yan, Mingdi
AU - Houk, K. N.
PY - 2015
DA - 2015/02/18 00:00:00
PB - American Chemical Society (ACS)
SP - 2958-2966
IS - 8
VL - 137
PMID - 25553488
SN - 0002-7863
SN - 1520-5126
ER -
BibTex |
Cite this
BibTex Copy
@article{2015_Xie,
author = {Sheng Xie and Steven R. Lopez and Olof Ramström and Mingdi Yan and K. N. Houk},
title = {1,3-Dipolar Cycloaddition Reactivities of Perfluorinated Aryl Azides with Enamines and Strained Dipolarophiles},
journal = {Journal of the American Chemical Society},
year = {2015},
volume = {137},
publisher = {American Chemical Society (ACS)},
month = {feb},
url = {https://doi.org/10.1021/ja511457g},
number = {8},
pages = {2958--2966},
doi = {10.1021/ja511457g}
}
MLA
Cite this
MLA Copy
Xie, Sheng, et al. “1,3-Dipolar Cycloaddition Reactivities of Perfluorinated Aryl Azides with Enamines and Strained Dipolarophiles.” Journal of the American Chemical Society, vol. 137, no. 8, Feb. 2015, pp. 2958-2966. https://doi.org/10.1021/ja511457g.
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