Adding a certain compound to certain chemical reactions, such as: 689291-89-2, name is 5-Bromo-2-iodobenzaldehyde, belongs to iodides-buliding-blocks compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 689291-89-2, Quality Control of 5-Bromo-2-iodobenzaldehyde
To an ice-cold solution of 2,2,5, 5-tetramethyldihydrofuran-3-one (0.388g, 2.73mmoles) in anhydrous 1 ,2-diotamethoxyethane (5ml) is added sodium methoxide (0.177g, 3.27mmoles) in one portion. The reaction mixture is stirred for 5 minutes at this temperature, followed by the dropwise addition of 5-bromo-2-iodo-benzaldehyde (0.85Og, 2.73mmoles) as a solution in 1 ,2-dimethoxyethane (5ml). The reaction mixture is further stirred at O0C for 30 minutes, then at ambient temperature for a 1 hour. After partitioning between 1 M hydrochloric acid and dichloromethane, the organic phase is separated, and the aqueous phase is extracted again with additional dichloromethane. All organics are combined then concentrated in vacuo to afford 4-[1-(5-bromo-2-iodophenyl)methyliotadene]-2,2,5,5-tetramethyldihydrofuran-3-one(1.18g) as a yellow gum.
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Reference:
Patent; SYNGENTA LIMITED; SCUTT, James Nicholas; WO2010/136431; (2010); A1;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com