20.500.12556/RUL-134247 Eosin Y-catalyzed visible-light-mediated aerobic transformation of pyrazolidine-3-one derivatives By utilizing an underexplored reactivity of N1-substituted pyrazolidine-3-ones, we developed a visible-light-induced aerobic oxidation of N1-substituted pyrazolidine-3-one derivatives yielding the corresponding azomethine imines. The resulting azomethine imines can be further reacted with ynones in situ under copper catalyzed [3 + 2] cycloaddition reaction conditions yielding the corresponding pyrazolo[1,2-a]pyrazoles in good yields. The methodology can be extended to other 1-aryl-substituted pyrazolidinones which undergo endocyclic oxidation deriving the corresponding pyrazolones as single products. pyrazolidine-3-ones eosin Y visible light photoredox catalysis pirazolidin-3-oni eosin Y vidna svetloba fotoredoks kataliza true false true Angleški jezik Slovenski jezik Članek v reviji 2022-01-03 15:00:50 2022-01-03 15:00:51 2023-05-04 13:02:28 0000-00-00 00:00:00 2020 0 0 10 str. iss. 9, art. 981 Vol. 10 Sep. 2020 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 547.77:544.47 2073-4344 10.3390/catal10090981 27805187 RAZ_Petek_Nejc_2020.pdf RAZ_Petek_Nejc_2020.pdf 1 4D6552DB87101A8B50C6362861D9DA81 ba3c31eae01a237bbe163dba986e5d2feb8adf6d33c4751e739deaa2a9237c71 a765c6ec-6c9d-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=152602 https://www.mdpi.com/2073-4344/10/9/981 0 65e95dc9-6c9d-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=152601 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0