[3 + 2]-Cycloadditions of nitrile ylides after photoactivion of vinyl azides under flow conditions

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Cludius-Brandt, Stephan; Kupracz, Lukas; Kirschning, Andreas: [3 + 2]-Cycloadditions of nitrile ylides after photoactivion of vinyl azides under flow conditions. In: Beilstein Journal of Organic Chemistry 9 (2013), 1745. DOI: http://dx.doi.org/10.3762/bjoc.9.201

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Sum total of downloads: 200




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Abstract: 
The photodenitrogenation of vinyl azides to 2H-azirines by using a photoflow reactor is reported and compared with thermal formation of 2H-azirines. Photochemically, the ring of the 2H-azirines was opened to yield the nitrile ylides, which underwent a [3 + 2]-cycloaddition with 1,3-dipolarophiles. When diisopropyl azodicarboxylate serves as the dipolarophile, 1,3,4-triazoles become directly accessible starting from the corresponding vinyl azide.
License of this version: CC BY 2.0 Unported
Document Type: Article
Publishing status: publishedVersion
Issue Date: 2013
Appears in Collections:Naturwissenschaftliche Fakultät

distribution of downloads over the selected time period:

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pos. country downloads
total perc.
1 image of flag of Germany Germany 150 75.00%
2 image of flag of United States United States 22 11.00%
3 image of flag of China China 9 4.50%
4 image of flag of France France 4 2.00%
5 image of flag of India India 3 1.50%
6 image of flag of Vietnam Vietnam 2 1.00%
7 image of flag of No geo information available No geo information available 1 0.50%
8 image of flag of Ukraine Ukraine 1 0.50%
9 image of flag of Taiwan Taiwan 1 0.50%
10 image of flag of Turkey Turkey 1 0.50%
    other countries 6 3.00%

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