2,4-二氧代戊酸甲酯与环(端)烯的[2+2]光环加成反应  

The [2+2] Photocycloaddition of Methyl 2,4-Dioxopentanoate with Cyclic(Terminal) Olefin

作　　者：张朋[1] 王朋[1] 刘超[1] 赵丽丽[2] 王进军[2] 

机构地区：[1]烟台大学药学院,山东烟台264005 [2]烟台大学化学生物理工学院,山东烟台264005

出　　处：《烟台大学学报（自然科学与工程版）》2010年第1期15-20,共6页Journal of Yantai University(Natural Science and Engineering Edition)

基　　金：山东省自然科学基金资助项目(Y2008B49)

摘　　要：选择2,4-二氧代戊酸甲酯与4,5-二甲基环己烯、甲叉基环己烯或者甲叉基环己烷进行了[2+2]环加成反应.通过控制反应条件,环加成产物可以选择性重排成多羰基化合物.同时,对化合物的形成过程进行了探讨,并且提出了可能的反应机理.所得新化合物的化学结构均经IR,1HNMR及元素分析予以确定.The [2＋2] photocycloaddition reaction of methyl 2,4-dioxopentanoate with cyclohexene or methylene cyclohexene are carried out to give the photocycloadducts including some relevant by-products. The selective rearrangement of cycloadducts can take place by controlling reactive condition. The producing processes for the compounds are discussed and the reaction mechanisms are tentatively proposed. The structures of all new compounds are assigned based on the data from IR,1H NMR and elementalanalysis.

关 键 词：光环加成 多羰基化合物 选择性重排 反应机理 

分 类 号：O62[理学—有机化学]