Reversible cleavage of 5-cholest-3-enoxyl radicals: Addition of alkyl radicals to ketones
作者:W.Russell Bowman、Brian A. Marples、Naveed A. Zaidi
DOI:10.1016/s0040-4039(00)99239-6
日期:1989.1
Oxiranylcarbinyl radicals (4) formed by photolysis of 3β-acetoxy-4 ξ, 5 ξ-epoxycholestanes in HMPA/H2O and by Bu3SnH reduction of 4ξ,5ξ-epoxy-3 β-[imidazol-1-yl(thiocarbonyl)oxy]-cholestanes gave the 5-cholest-3-enoxyl radicals which underwent reversible cleavage of the C5–C10 bond.
通过在HMPA / H 2 O中光解3β-乙酰氧基-4ξ,5ξ-环氧胆甾烷和通过Bu 3 SnH还原4ξ,5ξ-环氧-3β-[咪唑-1-基(硫代羰基)形成的氧杂环戊烷羰基自由基(4))氧基]-胆甾烷产生5-胆甾-3-烯氧基自由基,这些自由基经历了C5–C10键的可逆裂解。
Holland, Herbert L.; Jahangir, Canadian Journal of Chemistry, 1983, vol. 61, p. 2165 - 2170