Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps,and cheap raw materials. 624-95-3, name is 3,3-Dimethylbutan-1-ol. A new synthetic method of this compound is introduced below., SDS of cas: 624-95-3
[00068] Example VI represents an oxidation in which the KBr co-catalyst and the Na2B4O7 are simultaneously present. [00069] 16.9 g of 3,3-Dimethyl-1-butanol (117.3 mmol) and 0.0765 g MeO-TEMPO (0.411 mmol) are charged in a jacketed glass reaction flask as in Example I. Sodium borate (0.380 g, 1.0 mmol) and potassium bromide (0.011 g, 0.104 mmol) are dissolved in water (12.0 cc) and the aqueous solution is added to the stirred organic fraction at 1000 RPM in the reaction flask. The stirred suspension is cooled to 0 C. and the emulsion is re-adjusted to pH 8.4 using 50% solution of CH3COOH. When the temperature of the reactants reached 0 C., 75.5 g (122 mmol) of 12.1% aqueous NaOCl solution are pumped in via a gas-tight syringe over 90 minutes (The pH of the bleach solution was adjusted to 10 using 50% aqueous CH3COOH). During the bleach addition the pH was maintained at 8.3-8.4 levels using a few drops of 50% aqueous CH3COOH. The reaction mixture is stirred for an additional 120 min at 0 C. and the organic layer is sampled for GC assay. The reaction in this second stage was kept at pH 8.4 by addition of 0.2-0.25 cc aqueous solution of NaOH (50% concentration). The yield of 3,3-dimethylbutyraldehyde is 94.0% at 60 min and 95.0% at 90 min reaction time. This yield is equivalent to the yield of Example III in which no potassium bromide was used
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Reference:
Patent; The NutraSweet Company; US6825384; (2004); B1;,
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