Sunlight-induced C C bond formation reaction: Radical addition of alcohols/ethers/acetals to olefins
作者:Mamiko Hayakawa、Hisashi Shirota、Souta Hirayama、Ryuusei Yamada、Tadashi Aoyama、Akihiko Ouchi
DOI:10.1016/j.jphotochem.2021.113263
日期:2021.5
sunlight-induced CC bond formation reactions upon the addition of alcohols/ethers/acetals to olefins proceeded efficiently using di-tert-butyl peroxide (DTBP). The reactions proceeded faster than many of the previously reported sunlight and many conventional lamp photolyses, typically in 3–4 h under irradiation with sunlight, in excellent yield using olefins bearing two electron withdrawing groups (EWGs)
使用过氧化二叔丁基(DTBP),在将醇/醚/缩醛添加至烯烃后,由阳光引起的C C键形成反应得以有效进行。该反应比许多以前报道的日光和许多常规灯的光解反应进行得更快,通常在日光照射下3-4小时内,使用带有两个吸电子基团(EWG)的烯烃(产品收率> 95%)和带有一个EWG的烯烃的收率好到中等。与使用传统的Xe灯作为光源所获得的产品相比,某些产品的观察到的产率高出约20%,这被证实是由于光强度效应所致。克级实验显示的收率与其相应的小规模实验中观察到的收率相似。