Synthetic Route of 181765-85-5, These common heterocyclic compound, 181765-85-5, name is Methyl 4-chloro-2-iodobenzoate, its 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.
General procedure: To a solution of the corresponding benzoate (1.0 equiv) in dry THF (2.0 mL per 1.0 mmol of benzoate) under N2 atm was cooled to -40 C. Then, i-PrMgCl (2.0 equiv, 2M in THF) was added dropwise and stirred for 0.5 h at the same temperature. Afterwards CuCN.2LiCl (0.1 equiv) was added and after 5 minutes 2-chloro-3-iodo-propene (2.0 equiv) were added slowly. Then, the reaction was allowed to warm up at room temperature for 1.5 h. The reaction was quenched with saturated aqueous NH4Cl and extracted with diethyl ether. The combined organic layer was washed with brine, dried over anhydrous Na2SO4, concentrated by rotary evaporation, and purified by column chromatography to give 22a and 22b.
The synthetic route of 181765-85-5 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; Jorgensen, William L.; Anderson, Karen S.; US2015/105351; (2015); A1;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com