77568-66-2Relevant academic research and scientific papers
Vibrational Spectra and Conformations of 2,2,2-Trifluoroethylamine and 2,2,2-Trifluoroethanol
Kalasinsky, V. F.,Anjaria, H. V.
, p. 1940 - 1944 (1980)
The infrared and Raman spectra of 2,2,2-trifluoroethylamine (CF3CH2NH2) and 2,2,2-trifluoroethanol (CF3CH2OH) have been recorded in the fluid and solid phases.For CF3CH2NH2, the C-C stretch and the -NH2 stretch appear as doublets as a result of the equilibrium mixture of trans and gauche conformers.A value for ΔH of 2.9 kcal/mol has been determinated from a variable temperature study for the gas phase, and the -NH2 torsion for the more stable trans conformer has been observed at 264 cm-1.The Δv=2 transitions for the -CF3 torsion have been observed, and the derived barrier to internal rotation is 3.85+/-0.06 kcal/mol.Microwave transitions for two excited vibrational states have also been assigned for trans-2,2,2-trifluoroethylamine.A similar equilibrium between two conformers exists for CF3CH2OH.The -OH and -OD torsions for the more stable gauche conformer have been observed in the far-infrared spectra.The value of the -CF3 barrier has been calculated to be 3.72+/-0.15 kcal/mol.
Catalysis of the Trifluoroethanolysis of Dimethylphenylphenoxysilane
Dietze, Paul E.,Foerster, Chris,Xu, Yiying
, p. 2523 - 2528 (2007/10/02)
The buffer-catalyzed trifluoroethanolysis of dimethylphenylphenoxysilane was studied.The reaction exhibits general base catalysis, general acid catalysis, and bifunctional catalysis.The Bronsted values are the following: general base catalysis, βB = 0.72; general acid catalysis, αA = 0.65; bifunctional catalysis βAB = 0.Solvent isotope effects for the acetic acid-tetramethylammonium acetate-catalyzed trifluoroethanolysis are greater than 1.0 for all three mechanisms of catalysis.It is suggested that general acid catalysis, general base catalysis, and bifunctional catalysis are modifications of a similar mechanism.
SOLVOLYSES OF alpha -KETO NORBORNYL TRIFLUOROACETATES AND TRIFLATES. DISCRETE alpha -KETO CATIONS VS. sigma -ASSISTED (k DELTA ) PROCESSES.
Creary,Geiger
, p. 7123 - 7129 (2007/10/02)
Trifluoroacetate derivatives of exo-2-hydroxy-endo-2-aryl bicyclo left bracket 2. 2. 1 right bracket heptan-3-ones have been prepared and solvolyzed in acetic acid. Small amounts of endo-trifluoroacetate products, via internal return, as well as major unr
