Hydroxymethylation of 1,3-dimethyluracil and its derivatives induced by a photoredox system of Eu III /Eu II in MeOH
作者:Akito Ishida、Susumu Toki、Setsuo Takamuku
DOI:10.1039/c39850001481
日期:——
Irradiation of a methanol solution of EuCl3 and 1,3-dimethyluracil through a pyrex filter induced a regioselective hydroxymethylation with high efficiency, probably via an electron-transfer mechanism.
Photochemistry of 1,3-dimethyluracil. A novel photochemical ring-opening leading to an enamine
作者:Maria Arys、Torben B. Christensen、Jens Eriksen
DOI:10.1016/s0040-4039(01)80202-1
日期:——
Besides known reduction and solvent addition products, the photolysis of 1,3-dimethyluracil in methanol resulted in formation of the enamine 2-methoxycarbonyl-N-methyl-3-methylaminopropenamide (5) a novel ring-opening reaction. A mechanism for the formation of 5 is suggested and its structure was confirmed by an independent synthesis.