Functional transformation of aldehydes and ketones via homolytic induced decomposition of unsaturated peroxy acetals and peroxy ketals
作者:L. Moutet、D. Bonafoux、M. Degueil-Castaing、B. Maillard
DOI:10.1039/a808418a
日期:——
Induced decomposition of unsaturated peroxy acetals prepared from trimethyl orthoformate, dodecanal or 2-methylundecanal and 2,3-dimethyl-2-hydroperoxybut-3-ene, in the presence of ethyl iodoacetate, CCl4 or dodecanethiol, allowed respectively their iodo-, chloro- and hydro- decarbonylation with yields of over 70%; the same reaction applied to the monoperoxy ketal or diperoxy ketal of cyclohexanone in the presence of ethyl iodoacetate resulted in its functional transformation in methyl 6-iodohexanoate or 1,5-diiodopentane with respective yields of 65 and 40%.
通过三甲基原甲酸酯、十二醛或2-甲基十一醛和2,3-二甲基-2-羟过氧丁-3-烯在乙基碘乙酸酯、CCl4或十二硫醇的存在下引发的未饱和过氧缩醛的分解反应,分别实现了它们的碘代、氯代和羟基脱羰反应,产率均超过70%;同样的反应在乙基碘乙酸酯存在下应用于环己酮的单过氧缩酮或双过氧缩酮,分别得到了甲基6-碘己酸酯或1,5-二碘戊烷,产率分别为65%和40%。