Method for producing alkenone ethers

Details Method for producing alkenone ethers Method for producing alkenone ethers

2008-07-29

2008-07-29

Witherspoon, Sikarl A (Department: 1621)

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

Organic compounds

Oxygen containing

C568S407000, C568S408000

Reexamination Certificate

active

11294371

ABSTRACT:
In a method or producing haloalkenone ethers by addition of a carboxylic acid halide to a vinyl ether and subsequent elimination of hydrogen halide, the improvement comprising carrying out the reaction in the absence of a base and/or in the presence of a stabilizer for the resulting alkenone, whereby higher yields of the desired alkenone product can be obtained.

REFERENCES:
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I. I. Gerus et al., “Synthesis and Properties of beta-Ethoxyvinyl Polyfluoroalkyl Ketones”, Synthesis., No. 5, 2000, pp. 738-742, XP002295516, Georg Thieme Verlat. Stuttgart., DE the whole document.
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International Search Report dated Nov. 12, 2004 based on International Application No. PCT/EP2004/005466.

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