中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
4-碘二苯基甲烷 | 1-benzyl-4-iodobenzene | 35444-94-1 | C13H11I | 294.135 |
4-氯二苯甲酮 | 4-chlorobenzophenone | 134-85-0 | C13H9ClO | 216.667 |
4-溴苯甲酰苯 | (4-bromophenyl)(phenyl)methanone | 90-90-4 | C13H9BrO | 261.118 |
4-氨基二苯甲酮 | (4-aminophenyl)(phenyl)methanone | 1137-41-3 | C13H11NO | 197.236 |
4-碘苯甲醛 | 4-Iodobenzaldehyde | 15164-44-0 | C7H5IO | 232.021 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
二苯甲酮 | benzophenone | 119-61-9 | C13H10O | 182.222 |
4-甲基二苯甲酮 | 4-Methylbenzophenone | 134-84-9 | C14H12O | 196.249 |
4-碘二苯基甲烷 | 1-benzyl-4-iodobenzene | 35444-94-1 | C13H11I | 294.135 |
1,4-联苯酰基苯 | 1,4-dibenzoylbenzene | 3016-97-5 | C20H14O2 | 286.33 |
—— | (4-mercaptophenyl)(phenyl)methanone | 1620-94-6 | C13H10OS | 214.288 |
4-氟二苯甲酮 | 4-fluorobenzophenone | 345-83-5 | C13H9FO | 200.212 |
—— | [18F]-4-fluorobenzophenone | 115216-92-7 | C13H9FO | 199.214 |
4-氯二苯甲酮 | 4-chlorobenzophenone | 134-85-0 | C13H9ClO | 216.667 |
4-氨基二苯甲酮 | (4-aminophenyl)(phenyl)methanone | 1137-41-3 | C13H11NO | 197.236 |
4-羟基-二苯甲酮 | 4-Hydroxybenzophenone | 1137-42-4 | C13H10O2 | 198.221 |
4-乙基苯甲酮 | 4-ethylbenzophenone | 18220-90-1 | C15H14O | 210.276 |
—— | 4-vinylbenzophenone | 3139-85-3 | C15H12O | 208.26 |
4-氰基苯甲酮 | p-cyanobenzophenone | 1503-49-7 | C14H9NO | 207.232 |
—— | (4-(fluoromethyl)phenyl)(phenyl)methanone | 64747-74-6 | C14H11FO | 214.239 |
—— | (4-ethynylphenyl)(phenyl)methanone | 119754-17-5 | C15H10O | 206.244 |
4-苯甲酰苯甲酸 | 4-carboxybenzophenone | 611-95-0 | C14H10O3 | 226.232 |
—— | (4-(difluoromethyl)phenyl)(phenyl)methanone | 64747-73-5 | C14H10F2O | 232.23 |
—— | (4-allylphenyl)(phenyl)methanone | 76385-38-1 | C16H14O | 222.287 |
1-(4-苯甲酰基苯基)乙酮 | 4-acetylbenzophenone | 53689-84-2 | C15H12O2 | 224.259 |
4-2-苯乙基苯甲酮 | (4-phenethylphenyl)(phenyl)methanone | 91036-10-1 | C21H18O | 286.373 |
—— | (E)-3-(4-benzoylphenyl)acrylaldehyde | —— | C16H12O2 | 236.27 |
4-苯甲酰基-4'-甲基-二苯硫醚 | phenyl(4-(p-tolylthio)phenyl)methanone | 83846-85-9 | C20H16OS | 304.412 |
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.