文献类型：期刊文献

英文题名：Photocontrollable Release with Coumarin-Based Profragrances

作者：Liu, Ming[1,2];Han, Jianwei[1,2];Yan, Chenxu[1,2];Guo, Zhiqian[1,2];Xiao, Zuobing[3];Zhu, Wei-Hong[1,2]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Feringa Nobel Prize Scientist Joint Res Ctr, Shanghai Key Lab Funct Mat Chem,Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem & Mol Engn, Feringa Nobel Prize Scientist Joint Res Ctr, Inst Fine Chem,Joint Int Res Lab Precis Chem & Mo, Shanghai 200237, Peoples R China;[3]Shanghai Inst Technol, Sch Perfume & Aroma Technol, Shanghai 201418, Peoples R China

年份：2019

卷号：2

期号：9

起止页码：4002

外文期刊名：ACS APPLIED BIO MATERIALS

收录：EI(收录号：20193607405537);WOS:【ESCI(收录号:WOS:000616371400031)】；

基金：This work was supported by National Key Research and Development Program (2016YFA0200300), NSFC Science Center Program (21788102) and Creative Research Groups (21421004), NSFC/China (21636002 and 21622602), Shanghai Municipal Science and Technology Major Project (2018SHZDZX03), and Program of Introducing Talents of Discipline to Universities (B16017).

语种：英文

外文关键词：profragrances; photocontrollability; coumarin; fluorescence monitoring; wallpaper

摘要：The achievement of controllable and lasting scent on a targeted surface is a long-term goal in the field of flavors and fragrances. Herein, we design a novel series of phototriggered coumarin-based profragrances conjugated with volatile carboxylic fragrances via activatable chemical bridge of ester group, thereby achieving the controllable release of volatile fragrances under ambient conditions. Upon exposure to light, the fragile ester group of profragrances allows the slow release of fragrance molecules, building up a new lightsensitive fragrance delivery system. The incorporated coumarin unit of CM-OH as phototrigger is killing two birds with one stone, that is, precise photocontrollable release of fragrance molecules, and unprecedented fluorescence intensity to monitor the releasing process of fragrance molecules with linear relationship (R-2 > 0.95). In comparison, the light-induced releasing amount from profragrances of CM-O-EA, CM-O-PEA, CM-O-PA, and CM-O-CA is much lower than corresponding free fragrances by 33-, 8.5-, 13-, and 983-fold, respectively. As demonstrated, the coumarin-based profragrances provide a phototriggered platform to realize the controllable release of volatile fragrances, resulting in a long-lasting headspace concentration on the targeted surface of wallpaper.