A radical-chain addition of allyl bromides to aryl alkenes, vinyl ester, and vinyl phthalimide was studied in which elusive β-bromoalkyl radicals were trapped efficiently to give 5-bromo-1-pentenes in good to high yields (16 examples). A subsequent carbonylative radical cyclization with AIBN/Bu₃SnH/CO was successful in giving the corresponding 3,5-disubstituted cyclohexanone derivatives in moderate yields. Synthesis of a piperidine ring was also successful by subsequent reaction with primary amine.

中文翻译：

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基于捕获的β-溴代烷基自由基的烯烃的溴代芳基化反应，生成4-烯基溴化物

研究了烯丙基溴在芳基烯烃，乙烯基酯和乙烯基邻苯二甲酰亚胺上的自由基链加成反应，其中有效捕集难以捉摸的β-溴烷基自由基，以高到高收率得到5-溴-1-戊烯（16个实例）。随后用AIBN / Bu ₃ SnH / CO进行的羰基自由基环化成功地以中等收率得到了相应的3,5-二取代的环己酮衍生物。哌啶环的合成也通过随后与伯胺反应而成功完成。