3142-78-7Relevant academic research and scientific papers
Comparison of gas-phase acidities of some carbon acids with their rates of hydron exchange in methanolic methoxide
DeTuri, Vincent F.,Koch, Heinz F.,Koch, Judith G.,Lodder, Gerrit,Mishima, Masaaki,Zuilhof, Han,Abrams, Neal M.,Anders, Cecily E.,Biffinger, Justin C.,Han, Patrick,Kurland, Adam R.,Nichols, Jason M.,Ruminski, Anne M.,Smith, Patricia R.,Vasey, Karen D.
, p. 308 - 317 (2007/10/03)
Hydron exchange reaction rates, kexch M-1s -1, using methanolic sodium methoxide are compared with gas-phase acidities, ΔGAcid0 kcal/mol, for four 9-YPhenylfluorenes-9-iH, seven YC6/s
PREPARATION OF SELECTED FLUOROOLEFINS
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Page 5, (2008/06/13)
A process is disclosed for producing (CF3)2C=CH2, CF3CH=CF2, CF2=C(CF3)OCF2CHF2 and C6H5C(CF3)=CF2. The process involves contacting the corresponding fluorocarbon starting material selected from (CF3)2CFCH2F, (CF3)2CHF, (CF3)2CFOCF2CHF2 and C6H5CF(CF3)2, in the vapor phase, with a defluorination reagent selected from carbon, copper, iron, nickel and zinc at an elevated temperature of at least 300 DEG C.
Synthesis of 2-phenylperfluoropropene and 1,1,1,3,3,3-hexafluoro-2-phenylpropane
Bhadury, Pinaki S.,Pant, Bhagwat P.,Palit, Meehir,Jaiswal, Devendra K.
, p. 115 - 116 (2007/10/03)
We describe the optimisation of reaction conditions for the synthesis of 2-phenylperfluoropropene and its HF addition product 1,1,1,3,3,3-hexafluoro-2-phenylpropane from 1,1,1-trifluoroacetophenone by the reaction with sodium chlorodifluoroacetate and tri
Fluoro-containing 1-arylalkoxytris(dialkylamino)phosphonium salt, a process for their preparation and their use
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, (2008/06/13)
1-Arylalkoxy-tris(dialkylamino)phosphonium salts of the formula I STR1 wherein the substituents R1 to R5 are equal or different and represent hydrogen, alkyl having from 1 to 6 carbon atoms which may be perfluorinated, halogen, alkoxy or alkylthio, each having from 1 to 6 carbon atoms, Y represents hydrogen or a perfluoroalkyl group Cn F2n+1 having from 1 to 6 carbon atoms, X represents bromine or iodine and "Alkyl" represents an alkyl group of 1 to 3 carbon atoms, at most 3, preferably at most 2, of the groups R1 to R5 having a meaning other than hydrogen and the alkyl, alkoxy and alkylthio substituents attached to the aromatic nucleus altogether containing preferably at most 6 carbon atoms, in particular at most 4 carbon atoms. The invention also relates to a process for the preparation of the afore-mentioned phosphonium salts and to the use of the compounds of the formula I for the preparation of aromatic compounds having partly fluorinated groups of the formula V STR2 in which R1 to R5, X and Y have the afore-mentioned meaning, X can however also be hydrogen.
Proton-Transfer Reactions. 4. Near-Unity Kinetic Isotope Effects for Hydron Exchange and Dehydrofluorination Reactions
Koch, Heinz F.,Dahlberg, Donald B.,Lodder, Gerrit,Root, Karen S.,Touchette, Nancy A.,et al.
, p. 2394 - 2398 (2007/10/02)
Rates and isotope effects are reported for benzylic hydron exchange and dehydrofluorination reactions of C6H5CiHClCF3 (I) and C6H5CiH(CF3)2 (II) in alcoholic sodium alkoxide solutions.Reactions of I were studied in ethanol and isotop
