Epoxide Formation by Ring Closure of the Cinnamyloxy Radical
作者:Jérôme Amaudrut、Olaf Wiest
DOI:10.1021/ol005749t
日期:2000.5.1
oxiranyl benzyl radicals were generated by photolysis of alkyl 4-nitrobenzenesulfenates. The yet unprecedented epoxide ringformation 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