10496-80-7Relevant articles and documents
Toshima,Moritani
, p. 357 (1967)
Singlet oxygen analogs in biological systems. Peroxidase-catalyzed oxygenation of 1,3-dienes.
Chan
, p. 4632 - 4633 (1971)
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Oxidation of Tetraarylselenophenes and Benzoselenophene with m-Chloroperbenzoic Acid
Nakayama, Juzo,Matsui, Tomoki,Sato, Noriko
, p. 485 - 486 (1995)
Oxidation of tetraarylselenophenes with m-chloroperbenzoic acid produces cis-1,2-diaroyl-1,2-diarylethylenes and SeO2 as the principal product, while the oxidation of benzoselenophene affords benzoselenophene 1-oxide.
High-efficiency microphotooxidation using milliwatt LED sources
Carney, John M.,Hammer, Reagan J.,Hulce, Martin,Lomas, Chad M.,Miyashiro, Dayna
, p. 352 - 355 (2011)
Inexpensive milliwatt light emitting diode (LED) sources allow energy- and atom-efficient microphotochemical reactions. Thus, sources constructed from three 120 mW 5 mm diameter 627 nm LED's enable μmol-mmol scale methylene blue-sensitized singlet oxygen photooxidations of various arenes and cyclopentadienones using a 3-5 M excess of oxygen in 82-98% yields.
Ozonation of Phenyl-Substituted Thiophenes
Bailey, Philip S.,Hwang, Hank H.
, p. 1778 - 1779 (1985)
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Studies on Singlet Oxygen in Aqueous Solution. Part 1. Formation of Singlet Oxygen from Hydrogen Peroxide with Two-electron Oxidants
Evans, Dennis F.,Upton, Mark W.
, p. 1141 - 1145 (1985)
Kinetic parameters are reported for the trapping of singlet oxygen by anthracene-9,10-bis(ethanesulphonate) (aes) in water and deuterium oxide solutions.The kinetics of the reactions of N-chlorosuccinimide, chloramine T (N-chlorotoluene-p-sulphonamide), N-chloromethanesulphonamide, and N,N-dichloromethanesulphonamide with hydrogen peroxide have been studied.For chloramine T and N-chloromethanesulphonamide the rate-determining step is formation of the corresponding dichloro-compounds, which are the reactive species.Using aes as a trap, it is shown that both chloramine T and N-chlorosuccinimide with H2O2 produce singlet oxygen in essentially quantitative yield.Iodylbenzene reacts with H2O2 to give, in the rate-determining step, iodosylbenzene and oxygen and then iodobenzene and oxygen; 47 percent of the oxygen produced is in the singlet state.For the corresponding reaction with 4-iodosylbenzene-1-sulphonic acid, the yield of singlet oxygen is 45 percent, i.e. indistinguishable within experimental error.Periodate and H2O2 give lower yields of singlet oxygen, and it is considered that two concomitant processes are involved.With hypobromite and H2O2 the yield of singlet oxygen is 76 percent.These variations in yield are briefly discussed.
Microphotochemistry using 5-mm light-emitting diodes: Energy-efficient photooxidations
Carney, John M.,Hammer, Reagan J.,Hulce, Martin,Lomas, Chad M.,Miyashiro, Dayna
experimental part, p. 2560 - 2566 (2012/09/07)
Commercial, inexpensive 5-mm milliwatt light-emitting diodes are effective sources for batch microphotochemical oxidations. Using limited quantities of singlet oxygen, these oxidations are atom economical and therefore useful for labeling experiments with rare isotopes. Georg Thieme Verlag Stuttgart · New York.
Synthesis of tetrasubstituted furans via sequential Pd(OAc) 2/Zn(OTf)2-catalyzed oxidation and cydization of aromatic alkynes with molecular oxygen
Wang, Azhong,Jiang, Huanfeng,Xu, Qiuxiang
scheme or table, p. 929 - 932 (2009/09/29)
The development of a new method for the synthesis of tetrasubstituted furans using aromatic alkynes is reported. The strategy involves a tandem process of palladium-catalyzed oxidation and Zn(OTf)2-catalyzed cyclization in the presence of molecular oxygen.
