Treatment of alkenes (1a–5a) with sodium nitrite and iodine in ethyl acetate (or ether) and water in the presence of ethylene glycol (or propylene glycol) provides conjugated nitroalkenes (1b–5b) in 49–82% yields.
                                    用
亚硝酸钠和
碘在
醋酸乙酯(或醚)和
水中,以及在
乙二醇(或
丙二醇)存在下,对烯烃(1a–5a)进行处理,可以获得共轭硝基烯烃(1b–5b),产率为49–82%。