Examples of 'trifluoromethane' in a sentence
Meaning of "trifluoromethane"
Trifluoromethane (noun): A colorless nonflammable gas with a faint odor. This compound is used as a refrigerant and in the manufacturing of semiconductors and pharmaceuticals
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- Synonym of methyl fluoride
How to use "trifluoromethane" in a sentence
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trifluoromethane
Preferred derivatives include trifluoromethane sulfonic anhydride.
Ml of trifluoromethane sulfonic anhydride are then added to initiate polymerization.
A preferred catalyst is a trifluoromethane sulphonic acid.
Trifluoromethane or other volatile materials may also be employed as a blowing agent.
The most preferred sulphonic acid is trifluoromethane sulphonic acid.
The trifluoromethane sulfonic acid ion content was 0 ppm.
The present invention also relates to the preparation of trifluoromethane sulfonyl chloride.
Metal salts of trifluoromethane sulphonic acid ( triflates ) are used as catalysts.
Asymmetric anodic films were coated by exposure to a plasma generated from trifluoromethane monomer.
Trifluoromethane sulfonic acid, sulphuric acid and hydrochloric acid are preferred.
A method as claimed in any preceding claim wherein the catalyst is trifluoromethane sulfonic acid.
A trihaloalkyl sulfonic anhydride, preferably trifluoromethane sulfonic anhydride then is added to yield formula ( f ) compounds.
A composition according to claim 18 in which the hydrofluorocarbon is difluoromethane or trifluoromethane.
The invention now provides a direct trifluoromethylation method using trifluoromethane as a fluoromethylating species and trifluoromethylating agent.
Suitable propellants include nitrogen, carbon dioxide, argon and trifluoromethane.
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Step VII-3 It is a step of carrying out trifluoromethane sulfonylation on an aromatic hydroxyl group.
The composition of claim 1, wherein said optionally substituted perfluoroalkanesulphinate is sodium trifluoromethane sulphinate.
The mixture was cooled to 0°C and trifluoromethane sulfonic anhydride was added dropwise by syringe.
Working fluid mixtures for use in thermodynamic compression cycles comprising trifluoromethane and chlorodifluoroethane.
With trifluoromethane sulfonic anhydride ( triflic anhydride ), in the presence of a base.
A method of reacting a benzyl halide derivative with a trifluoromethane thiol copper complex Chem.
Zinc trifluoromethane sulphonate identified hereinafter as Zn ( OTf ) 2.
The cationic polymerization is preferably initiated by trifluoromethane sulfonic acid ( triflic acid ).
Lithium trifluoromethane sulfonate ( LiCF3 SO3 ) is sold commercially by the Aldrich Company.
Preferred catalysts are boric acid and boric anhydride, and trifluoromethane sulfonic acid.
Trifluoromethane refrigerant gas r 23.
Sulfonyl chlorides include methanesulfonyl chloride, p-toluenesulfonyl chloride, trifluoromethane sulfonyl chloride or the like.
In these cases, trifluoromethane or bromotrifluoromethane may be used as the refrigerant 115, for example.
Process according to claim 4, wherein the fluorinated sulphonic acid comprises trifluoromethane sulphonic acid.
Synthesizing of Isopropyl trifluoromethane sulfonate ( isopropyl triflate ) ;.
Typically used reagents are trifluoroacetic acid, hydrogen chloride, sulfuric acid and trifluoromethane sulfonic acid.
Methyl trifluoromethane sulfonate ( 88.6 g ) was added dropwise and after addition, the cooling bath was removed.
Preferred salt-forming sulfonic acids are toluenesulfonic acid, benzenesulfonic acid, methanesulfonic acid or trifluoromethane sulfonic acid.
Trifluoromethane sulphonic acid ( CF3SO3H ) is one of the strongest organic acids.
Typical examples of Brönsted acids are sulphonic acids e.g. trifluoromethane sulphonic acid and hexafluorophosphoric acid.
Method according to claim 1, wherein the mixture additionally contains up to 12 mass % of trifluoromethane.
After being cooled in an ice bath, 187 µL of trifluoromethane sulfonic acid was added thereto.
Fluorides This subheading includes the following compounds, carbon tetrafluoride ( tetrafluoromethane ), 1,1difluoroethane, tetrafluoroethylene, tnfluoroethylene, trifluoromethane.
A direct trifluoromethylation of trialkyl borates using trifluoromethane ( CF3H ) is not reported.
Fluorides This subheading includes the following compounds, carbon tetrafluoride ( tetrafluoromethane ), 1,1difluoroethane, tetrafluoroethylene, . trifluoroethylene, trifluoromethane.
The term " triflate " or " OTf " refers to the trifluoromethane sulfonyloxy group.
The preferred salt is LiSO3CF3, which is commonly referred to as lithium trifluoromethane sulfonate.
Thus, the compound ( 5C ) advantageously reacts with trifluoromethane sulfonic acid or an activated derivative thereof, e . g.
A commonly used type of chemistry is called fluorocarbon using for example trifluoromethane ( CHF3 ).
Example 14, Example 11 was repeated using 0.47 equivalents of magnesium trifluoromethane sulfonate instead of lithium trifluoromethane sulfonate.
Example 5, Example 1 was repeated using 1.0 equivalents of lithium tetrafluoroborate instead of lithium trifluoromethane sulfonate.
The most preferred R6 groups are iodine or trifluoromethane sulphonate.
The most preferred R ₈ groups are iodine and trifluoromethane sulphonate.
It is particularly preferred, however, that the leaving group is a trifluoromethane sulfonate ( triflate ) group.
The alkali metal ion content was 3.1 times ( in molar ratio ) the trifluoromethane sulfonic acid ion.
