94383-67-2Relevant articles and documents
Flavin Photocatalysts for Visible-Light [2+2] Cycloadditions: Structure, Reactivity and Reaction Mechanism
Mojr, Viktor,Pitrová, Gabriela,Straková, Karolína,Pruka?a, Dorota,Brazevic, Sabina,Svobodová, Eva,Hoskovcová, Irena,Burdziński, Gotard,Slanina, Tomá?,Sikorski, Marek,Cibulka, Radek
, p. 849 - 858 (2018/01/27)
New photocatalysts from the flavin family were found to mediate the [2+2] photocycloaddition reaction. 3-Butyl-10-methyl-5-deazaflavin (3 a) and 1-butyl-7,8-dimethoxy-3-methylalloxazine (2 e), if irradiated by visible light, were shown to allow an efficie
Tailoring flavins for visible light photocatalysis: organocatalytic [2+2] cycloadditions mediated by a flavin derivative and visible light
Mojr, Viktor,Svobodová, Eva,Straková, Karolína,Nevesely, Tomá?,Chudoba, Josef,Dvo?áková, Hana,Cibulka, Radek
, p. 12036 - 12039 (2015/07/28)
A new application of flavin derivatives in visible light photocatalysis was found. 1-Butyl-7,8-dimethoxy-3-methylalloxazine, when irradiated by visible light, was shown to allow an efficient cyclobutane ring formation via an intramolecular [2+2] cycloaddition of both styrene dienes, considered as electron-rich substrates, and electron-poor bis(arylenones), presumably proceeding via an energy transfer mechanism.
Electron-transfer induced intramolecular [2+2] cycloaddition of 2,6-diarylhepta-1,6-dienes
Takahashi,Okitsu,Ando,Miyashi
, p. 3953 - 3956 (2007/10/02)
Intramolecular [2+2] cycloaddition of 2,6-diaryl-1,6-heptadienes 1a-c to bicycloheptanes 2 can be induced by electron-transfer photosensitization with 9,10-dicyanoanthracene. A stepwise mechanism involving cyclic 1,4-cation radical 3 has been proposed based on the trapping experiments.