Synthetic Route of 689260-53-5, 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 689260-53-5 as follows.
Step 1: 2-bromo-1,3-dimethyl-5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-benzene A flask charged with a stir bar, 2-bromo-5-iodo-1,3-dimethyl-benzene (1.0 g), bis-(pinacolato)-diboron (1.0 g), potassium acetate (1.1 g) and dimethyl sulfoxide (10 mL) is purged with argon for 5 min. [1,1′-Bis(diphenylphosphino)-ferrocene]-dichloropalladium(II) (0.26 g) is added at room temperature, and the mixture is stirred at 90 C. for 3 h. After cooling to room temperature, water is added and the resulting mixture is extracted with ethyl acetate. The combined extracts are dried (MgSO4) and concentrated. The residue is chromatographed on reversed phase (HPLC; acetonitrile/water) to give the title compound. LC (method 9): tR=1.30 min; Mass spectrum (ESI+): m/z=311/313 (Br) [M+H]+.
According to the analysis of related databases, 689260-53-5, the application of this compound in the production field has become more and more popular.
Reference:
Patent; Boehringer Ingelheim International GmbH; ECKHARDT, Matthias; FRATTINI, Sara; HAMPRECHT, Dieter; HIMMELSBACH, Frank; LANGKOPF, Elke; LINGARD, Iain; PETERS, Stefan; WAGNER, Holger; US2013/252937; (2013); A1;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com