Process for producing 1,1,1-trifluoroacetone

Details Process for producing 1,1,1-trifluoroacetone Process for producing 1,1,1-trifluoroacetone

2006-02-21

2006-02-21

Witherspoon, Sikarl A. (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C568S411000

Reexamination Certificate

active

07002043

ABSTRACT:
The invention relates to a process for producing 1,1,1-trifluoroacetone, which is useful as an intermediate of pharmaceuticals and agricultural chemicals, or as a reagent for introducing fluorine-containing groups. This process includes the step of conducting a hydrogenolysis of a halogenated trifluoroacetone, which is represented by the formula [1], by a hydrogen gas, in a liquid phase containing water, in the presence of a catalyst containing a transition metal,where X represents a chlorine, bromine or iodine, and n represents an integer from 1 to 3. It is possible by the process to easily produce 1,1,1-trifluoroacetone with high purity.

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Mark Cushman, et al., “Synthesis of Trifluromethylated Pyrazine-Containing Nitrogen Heterocycles from Trifuromethylated and Ortho-Diamines: Scope and Regiochemistry” J. Org. Chemistry, vol. 53, pp. 5088-5092, 1988.

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