Abstract:
Irradiation (254 nm) of five alkyl and benzyl ethyl sulfides causes efficient (Φr 0.27-0.90) homolytic cleavage of the C-S bond. Of the resulting fragments, thiyl radicals mainly couple, while alkyl radicals abstract hydrogen, disproportionate or couple when stabilized (benzyl). Selective trapping of either of the two types of radicals occurs in the presence of nucleophilic (methyl vinyl ether and 1-hexene) and, respectively, electrophilic (acrylonitrile) alkenes. When an easily oxidized radical is formed, e.g. cumyl, secondary electron transfer leads to the corresponding cation. © 2006 Elsevier B.V. All rights reserved.
Registro:
Documento: |
Artículo
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Título: | Photochemical carbon-sulfur bond cleavage in some alkyl and benzyl sulfides |
Autor: | Bonesi, S.M.; Fagnoni, M.; Dondi, D.; Albini, A. |
Filiación: | CHIDECAR-CONICET, Departmento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Ciudad Universidaria, 1428 Buenos Aires, Argentina Department of Organic Chemistry, University of Pavia, v. Taramelli 10, 27100 Pavia, Italy
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Palabras clave: | Cleavage; Photochemistry; Radicals; Sulfides; Thioethers |
Año: | 2007
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Volumen: | 360
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Número: | 3
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Página de inicio: | 1230
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Página de fin: | 1234
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DOI: |
http://dx.doi.org/10.1016/j.ica.2006.07.022 |
Título revista: | Inorganica Chimica Acta
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Título revista abreviado: | Inorg. Chim. Acta
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ISSN: | 00201693
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CODEN: | ICHAA
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00201693_v360_n3_p1230_Bonesi |
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Citas:
---------- APA ----------
Bonesi, S.M., Fagnoni, M., Dondi, D. & Albini, A.
(2007)
. Photochemical carbon-sulfur bond cleavage in some alkyl and benzyl sulfides. Inorganica Chimica Acta, 360(3), 1230-1234.
http://dx.doi.org/10.1016/j.ica.2006.07.022---------- CHICAGO ----------
Bonesi, S.M., Fagnoni, M., Dondi, D., Albini, A.
"Photochemical carbon-sulfur bond cleavage in some alkyl and benzyl sulfides"
. Inorganica Chimica Acta 360, no. 3
(2007) : 1230-1234.
http://dx.doi.org/10.1016/j.ica.2006.07.022---------- MLA ----------
Bonesi, S.M., Fagnoni, M., Dondi, D., Albini, A.
"Photochemical carbon-sulfur bond cleavage in some alkyl and benzyl sulfides"
. Inorganica Chimica Acta, vol. 360, no. 3, 2007, pp. 1230-1234.
http://dx.doi.org/10.1016/j.ica.2006.07.022---------- VANCOUVER ----------
Bonesi, S.M., Fagnoni, M., Dondi, D., Albini, A. Photochemical carbon-sulfur bond cleavage in some alkyl and benzyl sulfides. Inorg. Chim. Acta. 2007;360(3):1230-1234.
http://dx.doi.org/10.1016/j.ica.2006.07.022