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  2. Trifluoromethylation - Wikipedia

    en.wikipedia.org/wiki/Trifluoromethylation

    S-(trifluoromethyl)dibenzothiophenium tetrafluoroborate is a commercially available and known trifluoromethylation reagent based on the same principle first documented in 1990. [ 64 ] [ 65 ] In this type of compound sulfur has been replaced by oxygen , selenium and tellurium .

  3. 4-Fluoroaniline - Wikipedia

    en.wikipedia.org/wiki/4-Fluoroaniline

    4-Fluoroaniline can be prepared by the hydrogenation of 4-nitrofluorobenzene. [2] It is a common building block in medicinal chemistry and related fields. [3] For example, it is a precursor to the fungicide fluoroimide or the fentanyl analogue parafluorofentanyl. It has also been evaluated for the production of ligands for homogeneous catalysis ...

  4. Electrophilic aromatic directing groups - Wikipedia

    en.wikipedia.org/wiki/Electrophilic_aromatic...

    This can also explain why phosphorus in phosphanes can't donate electron density to carbon through induction (i.e. +I effect) although it is less electronegative than carbon (2.19 vs 2.55, see electronegativity list) and why hydroiodic acid (pKa = -10) being much more acidic than hydrofluoric acid (pKa = 3).

  5. Trifluoromethyl group - Wikipedia

    en.wikipedia.org/wiki/Trifluoromethyl_group

    Trifluoromethyl group covalently bonded to an R group. The trifluoromethyl group is a functional group that has the formula-CF 3. The naming of is group is derived from the methyl group (which has the formula -CH 3), by replacing each hydrogen atom by a fluorine atom. Some common examples are trifluoromethane H– CF 3, 1,1,1-trifluoroethane H ...

  6. 4-Cyano-3-(trifluoromethyl)aniline - Wikipedia

    en.wikipedia.org/wiki/4-Cyano-3-(trifluoromethyl...

    4-Cyano-3-(trifluoromethyl)aniline, also known as 4-amino-2-(trifluoromethyl)benzonitrile, is a cyanated and trifluoromethylated derivative of aniline. It is the starting material in one of the chemical syntheses of the nonsteroidal antiandrogen bicalutamide .

  7. Trifluralin - Wikipedia

    en.wikipedia.org/wiki/Trifluralin

    It is unclear why trifluralin's exotic 4-trifluoromethyl was tested so early (1960), before more common candidates such as fluoro, bromo, or iodo. [ 7 ] By 1968, trifluralin was internationally available, including Australia and New Zealand, [ 6 ] and trifluralin was the 5th most used herbicide in the US, at 22,960,000 pounds (10,410 t) by 1974.

  8. Bistriflimide - Wikipedia

    en.wikipedia.org/wiki/Bistriflimide

    Its pK a value in water cannot be accurately determined but in acetonitrile it has been estimated as −0.10 and in 1,2-dichloroethane −12.3 (relative to the pK a value of 2,4,6-trinitrophenol (picric acid), anchored to zero to crudely approximate the aqueous pK a scale [2]), making it more acidic than triflic acid (pK a MeCN = 0.70, pK a DCE ...

  9. List of boiling and freezing information of solvents - Wikipedia

    en.wikipedia.org/wiki/List_of_boiling_and...

    This Wikipedia page provides a comprehensive list of boiling and freezing points for various solvents.

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