title: One-pot synthesis of pyranocoumarins via microwave-assisted pseudo multicomponent reactions and their molecular switching properties.
abstract: Two new pyranocoumarins were synthesized via one-pot, microwave-assisted pseudo multicomponent condensations of coumarin and 4-methylquinoline to investigate their molecular switching properties. Both are light-sensitive and have a distinct change of color upon UV irradiation. The reaction can be reverted by treating the photogenerated products with imidazoline-functionalized magnetic nanoparticles, which can be swiftly recycled with an external permanent magnet.
authors.affiliation: Department of Chemistry, Tunghai University, No. 181, Section 3, Taichung Port Road, Taichung City 40704, Taiwan, Republic of China.
authors.forename: Kuan-Ting
authors.initials: KT
authors.lastname: Li
authors.forename: Yong-Bo
authors.initials: YB
authors.lastname: Lin
authors.forename: Ding-Yah
authors.initials: DY
authors.lastname: Yang