Intramolecular cyclization of alkenyl radicals generated by 1,5-hydrogen transfer to alkoxy radicals
作者:Ẑivorad Čeković、Dimitar Ilijev
DOI:10.1016/s0040-4039(00)80319-6
日期:1988.1
Alkoxy radicals generated from the alkenyl nitrites or hypochlorites, possessing an olefinic bond in the position 8 or 9, by intramolecular 1,5-hydrogen transfer undergo the transposition of radical centre to the δ-carbon atom. These alkenyl radicals undergo the 5- or 6--cyclization and 1,2-disubstituted cyclopentane or cyclohexane derivatives are formed, respectively, in addition to the corresponding
由亚硝酸烯基或次氯酸烯基产生的烷氧基通过分子内1,5-氢转移在8或9位具有烯键,然后发生自由基中心向δ-碳原子的转移。这些烯基经过5-或6-环化反应,除相应的δ-取代的开链不饱和醇外,还分别形成了1,2-二取代的环戊烷或环己烷衍生物。