1-碘萘是一种有机化合物,化学式为C₁₀H₇I。它可以通过两种方法制得:一种是将1-溴萘与碘化钠在二氧六环中反应;另一种是在1,1,1,3,3,3-六氟-2-丙醇中使萘与N-碘代丁二酰亚胺反应,此过程中会生成少量的2-碘萘副产物。
应用1-碘萘广泛应用于有机合成。例如,在磷酸钾和催化剂存在下,它能够与苯硼酸发生偶联反应,生成1-苯基萘;此外,当与氰化钾反应时,碘会被氰基取代,最终得到1-萘甲腈。
用途用于有机合成。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
1,8-二碘萘 | 1,8-diiodonaphthalene | 1730-04-7 | C10H6I2 | 379.967 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
1,4-二碘萘 | 1,4-diiodonaphthalene | 36316-83-3 | C10H6I2 | 379.967 |
2-碘萘 | 2-iodonaphthalene | 612-55-5 | C10H7I | 254.07 |
2,6-二-碘萘 | 2,6-diiodonaphthalene | 36316-88-8 | C10H6I2 | 379.967 |
2,7-二碘萘 | 2,7-diiodonaphthalene | 58556-77-7 | C10H6I2 | 379.967 |
1-氯-5-碘萘 | 1-chloro-5-iodonaphthalene | 159334-77-7 | C10H6ClI | 288.515 |
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.