Results 131 to 140 of about 1,330 (177)

Nucleophilic Trifluoromethylation Using Trifluoromethyl Iodide. A New and Simple Alternative for the Trifluoromethylation of Aldehydes and Ketones

Organic Letters, 2001
A novel method for nucleophilic trifluoromethylation of aldehydes and ketones, based on photoinduced reduction of trifluoromethyl iodide by tetrakis(dimethylamino)ethylene (TDAE), is presented. [reaction: see text]
S, Aït-Mohand, N, Takechi, M, Médebielle, W R, Dolbier   +3 more
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The Molecular Structures Of Trifluoromethyl Bromide, Trifluoromethyl Iodide, Trifluoromethyl Cyanide, And Trifluoromethyl Sulfurpentafluoride.

1956
PhD ; Chemistry ; University of Michigan, Horace H. Rackham School of Graduate Studies ; http://deepblue.lib.umich.edu/bitstream/2027.42/181810/2/5801372 ...
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Trifluoromethylation of Flavonoids and Antitumor Activity of the Trifluoromethylated Flavonoid Derivatives.

ChemInform, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
Cai-Ling, Wang, Hong-Qi, Li, Wei-Dong, Meng, Feng-Ling, Qing   +3 more
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1-Trifluoromethylated isoquinolines via radical trifluoromethylation of isonitriles

Org. Biomol. Chem., 2014
A simple and efficient approach to biologically important 1-trifluoroalkylated isoquinolines starting with readily prepared β-aryl-α-isocyano-acrylates and Rf-I(iii)-reagents (Rf = CF3, C2F5, C3F7) is described.
Bo, Zhang, Armido, Studer
openaire   +2 more sources

Trifluoromethylation of α-Haloketones

Journal of the American Chemical Society, 2012
The C-X bond (X = Br, Cl) of α-haloketones is smoothly trifluoromethylated with the fluoroform-derived CuCF(3) reagent recently developed in our laboratories. This is the first nucleophilic α-trifluoromethylation reaction of carbonyl compounds and a rare example of CF(3)-C(sp(3)) coupling.
Petr, Novák, Anton, Lishchynskyi, Vladimir V, Grushin   +2 more
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Fluorinated and Trifluoromethylated Corannulenes

Chemistry – A European Journal, 2013
AbstractThe syntheses and properties of corannulenes carrying electron‐withdrawing groups (F, CF3, C6F5) are reported. Direct fluorination of corannulene (C20H10) was carried out with xenon difluoride, and the crystal structure of the product was confirmed by the X‐ray analysis.
Bernd M, Schmidt, Berit, Topolinski, Mihoko, Yamada, Shuhei, Higashibayashi, Mitsuhiko, Shionoya, Hidehiro, Sakurai, Dieter, Lentz   +6 more
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Bis(trifluoromethyl)aminyl and bis(trifluoromethyl) nitroxide

The Journal of Physical Chemistry, 1980
The EPR parameters for (CF3)2N· have been determined to be g = 2.00374, aN = 13.84 G, and aF = 13.84 G in CF2Cl2 from 150 to 220 K. The (CF3)2NO· radical has been generated from (CF3)2Ṅ by using isotopically enriched 17O2. It has a17O equal to 23.6 G which is higher than a17O values found for dialkyl nitroxides (19-20 G).
Chatgilialoglu, C., Malatesta, V., Ingold, K. U.   +2 more
openaire   +1 more source

Photochemistry of Trifluoromethyl Benzenes. I. (Trifluoromethyl)benzene

The Journal of Chemical Physics, 1971
Fluorescence and intersystem crossing quantum yields of (trifluoromethyl)benzene have been measured at different exciting wavelengths. At 265.3 nm the fluorescence yield decreases with increase in pressure of aromatic or of chemically inert quenching gas.
David Gray, David Phillips
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Synthesis of bis(trifluoromethyl)phenylthallium and bis(trifluoromethyl)thallium acetate. Oxidative trifluoromethylation with bis(trifluoromethyl)thallium(III) compounds

Inorganic Chemistry, 1989
The reaction of Cd(DF 3 ) 2 .glyme with TlPhCl 2 forms TlPh(CF 3 ) 2 , If TIPh(OAc) 2 is the thallium source, TlPh(CF 3 ) 2 is generated in 2 h; however, the isolated yield is lower because acetate reacts with Cd(CF 3 ) 2 .glyme, resulting in CH 3 COF. The interaction of Cd(CF 3 ) 2 .glyme with Tl(OAc) 3 produces TI(CF 3 ) 2 OAc. The possibility of
H. K. Nair, J. A. Morrison
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ChemInform Abstract: Preparation of Bis(trifluoromethyl)tellurium, Bis(trifluoromethyl)selenium, Bis(trifluoromethyl)diselenium, Tris(trifluoromethyl)antimony, Tris(trifluoromethyl)arsine, Bis(trifluoromethyl)arsenic Iodide, Tris(trifluoromethyl)phosphine, and (Trifluoromethyl)phosphorus Diiodide by Reaction of Bis(trifluoromethyl)mercury with the Group 5 and 6A (15 and 16) Halides.

ChemInform, 1989
AbstractThe preparations of the title compounds (I)‐(VI) by heating Hg(CF3)2 with the corresponding halides are described.
E. A. GANJA, C. D. ONTIVEROS, J. A. MORRISON   +2 more
openaire   +1 more source