Oxidation of gem-chloronitroso- and vic-chloronitroso-alkanes and -cycloalkanes to respective chloronitro compounds by novel cetyltrimethylammonium hypochlorite reagent
作者:ABDULKARIM H A MOHAMMED、GOPALPUR NAGENDRAPPA
DOI:10.1007/s12039-011-0090-7
日期:2011.7
Cetyltrimethylammonium hypochlorite (CTAHC) is prepared and used as an oxidizing agent for nitroso group to nitro group. The gem-chloronitroso and vic-chloronitroso compounds are prepared respectively from ketoximes and olefins by reacting with NOCl generated in situ from chlorotrimethylsilane (TMSCl) and iso-amyl nitrite. CTAHC oxidizes gem-chloronitroso and vic-chloronitroso compounds to the corresponding
制备了十六烷基三甲基次氯酸铵(CTAHC),并用作亚硝基至硝基的氧化剂。所述宝石-chloronitroso和VIC -chloronitroso化合物分别从酮肟和烯烃通过使与NOCl产生制备原位从甲基氯硅烷(加入TMSCl)和异戊亚硝酸盐。CTAHC直接氧化宝石-chloronitroso和VIC -chloronitroso化合物为相应的chloronitro衍生物。尽管宝石-氯硝基化合物的收率高,但由于vic的倾向,vic-氯硝基衍生物的收率适中。-氯亚硝基基团互变异构成α-氯肟。考虑到已知的制备方法很少且涉及很多的事实,本发明的方法是简单且实用的,特别是对于制备vic-氯硝基化合物。 宝石-Chloronitroso和VIC -chloronitroso化合物由NOCl的反应与肟和烯烃分别被氧化成获得宝石-chloronitro和VIC由十六烷基三甲基溴用次氯酸钠反应制备的十六烷基