253-52-1Relevant articles and documents
DUAL PHOTOREACTIONS OF PHTHALAZINE FROM THE LOWEST EXCITED SINGLET AND TRIPLET STATES
Sano, Ryo,Inoue, Hiroyasu
, p. 1901 - 1904 (1984)
Phthalazine undergoes the photoreduction and the photo-reductive dimerization simultaneously to give 1,2-dihydrophthalazine and its dimer (1H,1'H,2H,2'H-1,1'-biphthalazine), respectively, upon ultraviolet light irradiation in 2-propanol.It has been suggested that the photoreduction proceeds through the lowest excited singlet state and the photodimerization through the lowest triplet state.
Visible-Light Photocatalyzed Deoxygenation of N-Heterocyclic N-Oxides
Kim, Kyu Dong,Lee, Jun Hee
supporting information, p. 7712 - 7716 (2019/01/03)
A scalable and operationally simple method is described that allows for the chemoselective deoxygenation of a wide range of N-heterocyclic N-oxides (a total of 36 examples). This visible-light-induced protocol features the use of only commercially available reagents, room-temperature conditions, and unprecedented chemoselective removal of the oxygen atom in a quinoline N-oxide in the presence of a pyridine N-oxide in the same molecule through the judicious selection of a photocatalyst.
Nitrogen activation and conversion method promoted by divalent rare earth iodine compound
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Paragraph 0027; 0028, (2016/12/01)
The invention belongs to the technical field of organic chemical synthesis, and particularly relates to a method for activating and converting nitrogen through a divalent rare earth compound. A divalent rare earth diodide is used as a reducing agent, a solvent is added in, the mixture reacts with nitrogen, then a hydrogen source is added in, and then the mixture reacts with an aldehyde or ketone compound to obtain an azine or pyridazine compound. According to the method, the nitrogen is activated and converted into the organic compound containing nitrogen on the mild condition. Compared with a classical ammonia synthesis path, strict reaction conditions such as high temperature, high pressure and ammonia oxidation are avoided, and the method is of great significance in developing the new technology of nitrogen molecule activation and broadening the application range of rare earth metal in organic synthesis.