稳定性:稳定。
禁配物:强氧化剂、强还原剂、强碱。
避免接触的条件:受热。
聚合危害:不聚合。
分解产物:氮氧化物、碘化氢。
制备方法
用于有机合成。
用途简介
暂无内容
用途
用于有机合成。[15]
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | o-Nitro-iodosobenzol | 69180-53-6 | C6H4INO3 | 265.007 |
4-碘-3-硝基苯胺 | 4-iodo-3-nitroaniline | 105752-04-3 | C6H5IN2O2 | 264.022 |
硝基苯 | nitrobenzene | 98-95-3 | C6H5NO2 | 123.111 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | o-Nitro-iodosobenzol | 69180-53-6 | C6H4INO3 | 265.007 |
2,6-二硝基碘苯 | 2,6-dinitroiodobenzene | 26516-42-7 | C6H3IN2O4 | 294.005 |
2,4-二硝基碘苯 | 1-iodo-2,4-dinitrobenzene | 709-49-9 | C6H3IN2O4 | 294.005 |
—— | 2-nitro(iodyl)benzene | 16825-77-7 | C6H4INO4 | 281.007 |
N-(2-碘苯基)-羟胺 | 2-iodophenylhydroxylamine | 41319-82-8 | C6H6INO | 235.024 |
硝基苯 | nitrobenzene | 98-95-3 | C6H5NO2 | 123.111 |
Halodimethylsulfonium halide 1, which is readily formed in situ from hydrohaloic acid and DMSO, is a good nucleophilic halide. This activated nucleophilic halide rapidly converts aryldiazonium salt prepared in situ by the same hydrohaloic acid and nitrite ion to aryl chlorides, bromides, or iodides in good yield. The combined action of nitrite ion and hydrohaloic acid in DMSO is required for the direct transformation of aromatic amines, which results in the production of aryl halides within 1 h. Substituted compounds with electron-donating or -withdrawing groups or sterically hindered aromatic amines are also smoothly transformed to the corresponding aromatic halides. The only observed by-product is the deaminated arene (usually <7%). The isolated aryldiazonium salts can also be converted to the corresponding aryl halides using 1. The present method offers a facile, one-step procedure for transforming aminoarenes to haloarenes and lacks the environmental pollutants that usually accompany the Sandmeyer reaction using copper halides. Key words: aminoarenes, haloarenes, halodimethylsulfonium halide, halogenation, amination.