Some common heterocyclic compound, 147808-02-4, name is 2-Fluoro-1,4-diiodobenzene, molecular formula is C6H3FI2, traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route. Formula: C6H3FI2
Step 1-A: A solution of 2-fluoro-1,4-diiodo-benzene (804 mg, 2.31 mmol) in tetrahydrofuran (8 mL) was cooled to -78 C. (external) and a 2.0 M solution of isopropylmagnesium chloride in tetrahydrofuran (1.44 mL, 2.89 mmol) added via syringe. The resulting mixture was stirred for 30 minutes while allowing the temperature of the cooling bath to rise to -50 C. The reaction mixture was then immersed in an ice/water bath and anhydrous N,N-dimethylformamide (425 muL, 5.78 mmol) was added by syringe to the reaction mixture. The reaction was stirred at 0 C. for 10 minutes, then at room temperature for 5 minutes. Thin layer chromatography (TLC) indicated the reaction to be complete. The mixture was diluted with saturated aqueous ammonium chloride solution (8 mL) and extracted with diethylether (2*20 mL). The combined organic layers were dried over sodium sulfate and concentrated in vacuo. The resulting residue was purified by chromatography over silica gel gradient eluted with 0 to 15% v/v ethyl acetate/hexanes to give 2-fluoro-4-iodo-benzaldehyde as a fluffy-white solid (389 mg, 67%).
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 147808-02-4, its application will become more common.
Reference:
Patent; Chen, Shaoqing; Huby, Nicholas J.S.; Kong, Norman; Moliterni, Jonh Anthony; Morales, Omar Jose; US2009/170920; (2009); A1;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com