| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| 1-甲基-6-硝基-1H-吲唑 | 1-methyl-6-nitro-1H-indazole | 6850-23-3 | C8H7N3O2 | 177.162 |
| 3-溴-6-硝基吲唑 | 3-bromo-6-nitro-1H-indazole | 70315-68-3 | C7H4BrN3O2 | 242.032 |
| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| 3-溴-6-硝基吲唑 | 3-bromo-6-nitro-1H-indazole | 70315-68-3 | C7H4BrN3O2 | 242.032 |
A mechanically-activated chemoselective Heck coupling for the synthesis of 3-vinylindazoles has been developed with the aid of catalytic amounts of TBAB and NaBr as both dehalogenation restrainer and grinding auxiliary. After tuning of the chemical conditions and mechanical parameters, a series of non-activated 3-bromoindazoles and a broad scope of olefins worked well to give the corresponding coupling products in good to excellent yields. A further application of this protocol was performed in a two-step mechanochemical Heck/Migita cross coupling, which provided a highly efficient route for the synthesis of axitinib.