Direct Oxidation of Arenes to Arene Oxides by 2-Nitrobenzene Peroxysulfur Intermediate Generated from 2-Nitrobenzenesulfonyl Chloride and Superoxide
作者:Hyeon Kye Lee、Kyoung Soo Kim、Jack C. Kim、Yong Hae Kim
DOI:10.1246/cl.1988.561
日期:1988.4.5
Acenaphthylene, phenanthrene, and pyrene, which are inert with superoxide itself, were readily oxidized to the corresponding areneoxides by a 2-nitrobenzene sulfonylperoxyl radical intermediate (A) generated from 2-nitrobenzenesulfonyl chloride and potassium superoxide in polar aprotic solvents such as acetonitrile, nitromethane, and dimethylformamide under mild conditions.
By using the title dioxirane (1a), naphthalene (2), phenanthrene (3), and anthracene (4) have been converted into anti-naphthalene-1,2;3,4-dioxide (2′), phenonthrene-9,10-oxide (3′), and anthraquinone (4′), respectively, in high yield and under mild conditions. However, the transformation of pyrene (5) - an higher homologue of the polycyclic aromatic hydrocarbon series - into the corresponding arene
Reactions of K-region oxides of carcinogenic and noncarcinogenic aromatic hydrocarbons. Comparative studies on reactions with nucleophiles and acid-catalyzed reactions.
Several K-region arene oxides of carcinogenic and noncarcinogenic polycyclic aromatic hydrocarbons were synthesized, and their reactivities with various nucleophiles and their acid-catalyzed reactions were discussed. Relationship between these chemical reactivities and mutagenicity was also discussed.
合成了几种致癌和非致癌多环芳烃的 K 区芳烃氧化物,并讨论了它们与各种亲核物的反应活性及其酸催化反应。还讨论了这些化学反应性与致突变性之间的关系。
Synthesis of glutathione adducts of K-region arene oxides
作者:Oscar Hernandez、Madathil B. Gopinathan
DOI:10.1039/c39840001491
日期:——
The K-regionoxides of phenanthrene, pyrene, and benzo[a]pyrene react with N-trifuoroacetylglutathione dimethyl ester to give diastereoisomeric conjugates amenable to separation by chromatography.
菲,pyr和苯并[ a ] K的K区氧化物与N-三氟乙酰乙酰谷胱甘肽二甲酯反应,得到适合通过色谱分离的非对映异构体共轭物。
Acid-catalyzed rearrangement of K-region arene oxides: observation of ketone intermediates and a sterically induced change in rate-determining step
作者:Nashaat T. Nashed、Jane M. Sayer、Donald M. Jerina
DOI:10.1021/ja00058a016
日期:1993.3
K-regionareneoxides rearrange to phenols in acetonitrile in two acid-catalyzed steps: rapid rearrangement of the areneoxide to positionally isomeric keto tautomers of K-region phenols, followed by slow enolization. Accumulation of the ketones, proposed intermediates in the acid-catalyzed solvolyses of areneoxides in aqueous solution, allowed their direct spectroscopic observation and characterization
K 区芳烃氧化物在乙腈中通过两个酸催化步骤重排为苯酚:将芳烃氧化物快速重排为 K 区苯酚的位置异构酮互变异构体,然后缓慢烯醇化。酮的积累是水溶液中芳烃氧化物的酸催化溶剂分解中提出的中间体,首次允许在溶剂分解条件下直接进行光谱观察和表征。报告了苯并 [a] 蒽的 K 区芳烃氧化物、其 1-、4-、7-、11-、12-甲基和 7,12-二甲基取代衍生物苯并 [a] 的速率常数和产物芘、苯并[c]菲、3-溴菲、屈、二苯并[a,h]蒽、菲和芘