Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 2612-28-4, name is 2-Propylpropane-1,3-diol. This compound has unique chemical properties. The synthetic route is as follows. Formula: C6H14O2
(2-1) In a nitrogen atmosphere, 4-bromo-3-fluorobenzalde- hyde (20.0 g), 2-propyl-1 ,3-propanediol (11.6 g), and p-toluenesulfonic acid monohydrate (0.9 g) were dissolved in toluene (100 mE), and the resulting solution was stirred for four hours under solvent refluxing while removing generated water with a Dean-Stark apparatus. Afier the mixture was left to cool, a saturated aqueous sodium hydrogen carbonate solution (100 mE) was added thereto to conduct separation, and the organic layer was washed with saturated saline (100 mE) and dried by addition of anhydrous sodium sulfate. Afier the solvent was distilled away at a reduced pressure, the residue was purified by silica gel colunm chromatography. As a result, crude 2-(4-bromo-3-fluorophenyl)-5-propyl- 1 ,3-di- oxane (31.0 g) was obtained.
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Reference:
Patent; DIC CORPORATION; Tojo, Kenta; Kusumoto, Tetsuo; (36 pag.)US2016/159765; (2016); A1;,
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