A free radical introduction of a functionalized alkyl chain onto remote non-activated δ-carbon atoms (Michael type alkylation) has been achieved. Photolysis of suitable alkyl nitrites involves generation of δ-alkyl radicals and in the presence of radicophilic olefins, intermolecular addition takes place and affords δ-alkylated products in 36–80% yields. δ-Alkylation is also achieved in the reaction
已经实现了将官能化的烷基链自由基引入到远端未活化的δ-碳原子上(迈克尔型烷基化)。合适的
亚硝酸烷基酯的光解涉及生成δ-烷基,并且在亲油性烯烃的存在下,发生分子间加成并以36-80%的收率提供δ-烷基化的产物。在烷基
苯磺酸盐与氢化三
丁基锡(TBTH)的反应中,在存在活化烯烃的情况下,也可以实现δ-烷基化,而官能化烷基链的引入涉及烷氧基和δ-碳自由基。具有功能化烷基链的产品以36–86%的产率获得。在活化烯烃的存在下,与六丁基二
锡的反应中也会发生烷基
苯磺酸盐的δ-烷基化。