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Diels-Alder reaction between indoles and cyclohexadienes photocatalyzed by a (thia)pyrylium salt
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Diels-Alder reaction between indoles and cyclohexadienes photocatalyzed by a (thia)pyrylium salt
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| dc.contributor.author | González Béjar, María | |
| dc.contributor.author | Stiriba, Salah Eddine | |
| dc.contributor.author | Pérez Prieto, Julia | |
| dc.date.accessioned | 2010-06-08T10:23:10Z | |
| dc.date.available | 2010-06-08T10:23:10Z | |
| dc.date.issued | 2007 | |
| dc.identifier.citation | González Béjar, María ; Stiriba, Salah Eddine ; Pérez Prieto, Julia, 2007, Diels-alder reaction between indoles and cyclohexadienes photocatalyzed by a (thia)pyrylium salt, Arkivoc, vol. 2007, no. IV, p. 344-355 | en |
| dc.identifier.uri | http://hdl.handle.net/10550/12892 | |
| dc.description.abstract | "Thiapyrylium salt 1 is an efficient photocatalyst in the Diels-Alder reaction between indoles (InHs) and 1,3-cyclohexadienes (CHDs). For instance, irradiation of deaerated dichloromethane solutions containing 1 (1 mM), indole (20 mM) and cyclohexadiene (40 mM), in the presence of an acylating agent, led to the Diels-Alder cycloadduct in 62% yield (endo:exo ratio of 1.8:1). Taking into account the very high intersystem crossing yield (Φisc = 0.97) of thiapyrylium salt 1, involvement of its triplet excited state in this Diels-Alder reaction has been studied using steadystate and time-resolved experiments; the results are compared with those previously obtained for pyrylium salts, which exhibit a considerable fluorescence quantum yield and are assumed to operate via electron transfer from the InH to their singlet excited state." | en |
| dc.language.iso | en | en |
| dc.subject | Diels-Alder reaction ; Photocatalysis ; Thiapyrylium salts ; Indoles, 1.3-cyclohexadienes | en |
| dc.title | Diels-Alder reaction between indoles and cyclohexadienes photocatalyzed by a (thia)pyrylium salt | en |
| dc.type | journal article | es_ES |
| dc.subject.unesco | UNESCO::QUÍMICA | en |
| dc.subject.unesco | UNESCO::QUÍMICA::Química orgánica | en |
| dc.identifier.idgrec | 038788 | en |
| dc.type.hasVersion | VoR | es_ES |
| dc.identifier.url | http://www.arkat-usa.org/get-file/19193/ | en |
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