Epoxide Formation by Ring Closure of the Cinnamyloxy Radical
Autor: | Jérôme Amaudrut, Olaf Wiest |
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Rok vydání: | 2000 |
Předmět: | |
Zdroj: | Organic Letters. 2:1251-1254 |
ISSN: | 1523-7052 1523-7060 |
DOI: | 10.1021/ol005749t |
Popis: | [formula: see text] The cinnamyloxy and oxiranyl benzyl radicals were generated by photolysis of alkyl 4-nitrobenzenesulfenates. The yet unprecedented epoxide ring formation from a primary alkoxy radical was observed. Experimental evidence supports the fact that the mode of ring opening of the oxiranyl carbinyl radical system is thermodynamically driven. B3LYP/6-31G* calculations indicate that the closed form of the radical is approximately 5 kcal/mol more stable than the open one. |
Databáze: | OpenAIRE |
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