ChemicalBook CAS DataBase List 1,1-Dichloroacetone

1,1-Dichloroacetone synthesis

13synthesis methods

Product Name:1,1-Dichloroacetone
CAS Number:513-88-2
Molecular formula:C3H4Cl2O
Molecular Weight:126.97

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513-88-2
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Yield:-

Reaction Conditions:

with hydrogenchloride;platinum on carbon in water at 95 - 100; for 17 h;Product distribution / selectivity;

Steps:

3
The disproportionation reactor was a 4-dram vial equipped with a magnetic stir bar. Monochloroacetone was added to the reactor which contains water, a catalyst as shown in Table I and a strong acid and preferably a chloride -salt. The relative amounts of the materials are shown in Tables I-IV. The mixture was stirred and then heated at 95 to 100°C for 17 hours. The product was cooled to room temperature. Ten drops of the filtrate was diluted to 1 mL with acetonitrile, then filtered through a disposable syringe filter and analyzed by gas chromatography. The amounts of products produced are reported by GC area percentages as shown in Tables I to IV (EXAMPLES 1 to 4, respectively).

References:

DOW GLOBAL TECHNOLOGIES INC. WO2005/97722, 2005, A1 Location in patent:Page/Page column 7; 9

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