430-99-9Relevant articles and documents
METHOD FOR PRODUCING alpha-FLUOROACRYLIC ACID
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Paragraph 0307-0308; 0313-0314; 0326-0327, (2021/09/03)
An object of the present invention is to provide a novel method for producing an α-fluoroacrylic acid ester compound. This problem is solved by a method for producing a compound represented by formula (1), wherein R1 and R2 are identical or different, and each represents an alkyl group or the like; and R3 is an alkyl group or the like, the method comprising step A of reacting a compound represented by formula (2) with R3—OH (3) and carbon monoxide in the presence of palladium, a double bond-containing compound (α), a diphosphine compound (β), and a base, to obtain the compound represented by formula (1) above.
PRODUCTION METHOD FOR ALPHA-FLUORO ACRYLIC ACID ESTERS
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Paragraph 0149; 0150, (2016/11/17)
An object of the present invention is to provide a process for producing α-fluoroacrylic acid esters at a high starting material conversion and a high yield. The present invention provides, as a means to achieve the object, a process for producing a compound represented by formula (1): wherein R2 and R2 are the same or different and each represent alkyl, fluoroalkyl, aryl optionally substituted with at least one substituent, halogen, or hydrogen; and R3 represents alkyl, fluoroalkyl, or aryl optionally substituted with at least one substituent, the process comprising step A ofreacting a compound represented by formula (2): wherein the symbols are as defined above, with carbon monoxide and an alcohol represented by formula (3): [in-line-formulae]R3—OH ??(3)[/in-line-formulae]wherein the symbol is as defined above, in the presence of a transition metal complex catalyst containing at least one bidentate phosphine ligand and a base to thereby obtain the compound represented by formula (1).
Low-temperature 19F NMR spectroscopy of 1-fluoro-1-lithioethenes - Stability, shifts and unexpected coupling constants
Kvicala, Jaroslav,Hrabal, Richard,Czernek, Jiri,Bartosova, Ivana,Paleta, Oldrich,Pelter, Andrew
, p. 211 - 218 (2007/10/03)
Half-lives and fluorine atom shifts of stabilized 1-fluoro-l-lithioethenes bearing hydrogen, fluorine, phenyl, and/or dimethylphenylsilyl groups in the β-positions have been determined by a low-temperature 19F NMR spectroscopy. Some 1-fluoro-1-lithioethenes displayed an exceptionally low value of the trans-3JFF coupling constant. Stereoselectivity of carbenoid formation, as well as an effect of configuration on the stability is discussed.
SYNTHESIS OF 2-FLUOROPROPENOIC ACID DERIVATIVES
Tolman, Vladimir,Spronglova, Pavla
, p. 319 - 326 (2007/10/02)
A method is described for the synthesis of 2-fluoropropenoic acid esters, amides, and nitrile from the corresponding derivatives of 2-fluoro-3-(4-toluenesulfonyloxy)propanoic acid by heating with potassium phtalimide in vacuo.The free acid Ia and its chloride have also been synthetized.The reactivity of esters and nitrile of acid Ia has been verified by the Michael addition of diethyl acetamidomalonate to these compounds.