In the chemical reaction process, reaction time, type of solvent, can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product. An updated downstream synthesis route of 6940-76-7 as follows. SDS of cas: 6940-76-7
(b) 4-(3-Chloro-propane-1-sulfonyl)-1,2-difluoro-benzene To 3,4-difluoro-benzenesulfinic acid (500 mg, 2.81 mmol) and triethylamine (0.43 ml, 3.10 mmol) in 10 ml DMF was added 1-chloro-3-iodopropane (1.43 g, 7.00 mmol) and the mixture heated at 65 C. for 3 h. The reaction mixture was then poured onto water and extracted three times with ethyl acetate. The combined organic phases were then washed with saturated aq. NaCl solution, dried over Na2SO4, and concentrated in vacuo. The residue was chromatographed over SiO2 (ethyl acetate/heptane 1:50) to afford the title compound (300 mg, 42%) as an off-white crystalline solid. MS (ISP): 257.2 {37Cl}MH+, 255.1{35Cl}MH+
According to the analysis of related databases, 6940-76-7, the application of this compound in the production field has become more and more popular.