Studies on photochemical reactions of air pollutants. VIII. Photochemical epoxidation of olefins with NO2 in a solid-gas phase system.
作者:KAZUHIRO NOJIMA、TAKESHI OHYA、SABURO KANNO、MASAAKI HIROBE
DOI:10.1248/cpb.30.4500
日期:——
Upon irradiation with a xenon lamp through a Pyrex filter (cut-off below 290 nm), olefinic compounds such as trans-stilbene, cyclohexene, 4, 5-dibromocyclohexene and aldrin reacted with nitrogen dioxide, an air pollutant which induces photochemical smog, in air and gave the corresponding epoxides in good yields, while phenanthrene gave 9, 10-phenanthrenequinone and 9-hydroxy-10-nitrophenanthrene. Furthermore, the photochemical and dark reactions of phenanthrene 9, 10-oxide with nitrogen dioxide in air both resulted in the same products as above. Therefore, phenanthrene 9, 10-oxide seems to be an intermediate in the photochemical reaction of phenanthrene with nitrogen dioxide in air.
在通过钠石英滤光片(截止波长低于290纳米)用氙灯照射后,烯烃化合物如反式二苯乙烯、环己烯、4,5-二溴环己烯和 aldrin 在空气中与二氧化氮(一种引发光化学烟雾的空气污染物)反应,生成相应的环氧化物,并且产率较高,而菲则生成了9,10-菲醌和9-羟基-10-硝基菲。此外,菲-9,10-氧化物与空气中的二氧化氮进行的光化学反应和暗反应都得到了相同的产物。因此,菲-9,10-氧化物似乎是在菲与空气中的二氧化氮光化学反应中的一个中间体。