114467-77-5Relevant articles and documents
PRODUCTION METHOD OF DIFLUOROMETHYLENE COMPOUND
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, (2018/10/31)
PROBLEM TO BE SOLVED: To provide a production method of a difluoromethylene compound. SOLUTION: The production method of a difluoromethylene compound represented by formula (IIIa) id provided in which difluoro acetate represented by formula (Ia) is reacted with an aryl electrophile represented by formula (IIa). In the formulas, R represents CN, NO2, C(O)OC2H5, COCH3 or Cl; m represents an integer of 1 or 2; M represents Li, Na, K, Rb or Cs; Ar represents a phenyl group or a phenylalkyl group, the alkyl portion having 1-5C, which may be optionally substituted by a substituent selected from the group consisting of a -Cl group, a -OCH3 group and a -C(O)OC2H5 group. COPYRIGHT: (C)2015,JPOandINPIT
Syntheses of New Aromatic Compounds with Fluorinated Side Chains and their Chemical Reactivity
Haas, Alois,Spitzer, Martin,Lieb, Max
, p. 1329 - 1340 (2007/10/02)
The syntheses of a wide range of aromatic compounds of the type p-Y-C6H4CF2X(4-13) are described, and the chemical behavior of these compounds as a function of substituent Y is investigated .Analogously the pyridine derivatives 15, 17, and 18 were synthesized and characterized.From a correlation of the 19F-NMR data of these compounds with the Hammett constant of Y, participation of C-F ?-back-donation is seen as the cause for an observed shift of the 19F signals to lower field.