56758-54-4Relevant academic research and scientific papers
Process for producing a 2,2-difluoropropane
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, (2008/06/13)
A process for producing a 2,2-difluoropropane of the following formula (2), which comprises fluorinating a chlorine-containing 2,2-halogenopropane of the following formula (1) by hydrogen fluoride or a fluorinating agent: wherein a, b, c and x are integers satisfying the following conditions:
A New Preparative Method for 1-Chloro-2,2,3-trifluoropropane (HCFC-253ca)
Arimura, Takashi,Kurosawa, Shigeru,Sekiya, Akira
, p. 35 - 36 (2007/10/02)
Allene was both fluorinated and chlorofluorinated with chlorine monofluoride serving as a well-known chlorofluorinating and chlorinating reagent. 1-Chloro-2,2,3-trifluoropropane was obtained as a major product in the presence of cesium fluoride.
19F nuclear magnetic resonance studies of halogenated propanes
Tanuma, T.,Ohnishi, K.,Okamoto, H.,Miyajima, T.,Morikawa, S.
, p. 259 - 284 (2007/10/02)
The relationship between 19F chemical shifts in halogenated propanes and their structures are elucidated using MNDO calculations to determine the population of rotamers.The pairs of atom gauche to a fluorine atom and van der Waals interaction between the two terminal substituents are responsible for the 19F chemical shifts.The differences among chemical shifts in diastereomers are also discussed in terms of the conformation of molecule.
REACTIONS OF HALOGEN FLUORIDES. X. FLUORINATION OF CHLORINE-SUBSTITUTED ALKANES WITH BROMINE TRIFLUORIDE
Kartashov, A. V.,Chuvatkin, N. N.,Boguslavskaya, L. S.
, p. 2276 - 2278 (2007/10/02)
Bromine trifluoride in Freon 113 readily substitutes the chlorine atoms in monochloroalkanes by fluorine, while in the presence of catalytic amounts of certain Lewis acids it is also capable of substituting the chlorine atoms in polychloroalkanes with the formation of the corresponding fluorides.Additions of tin tetrachloride make it possible not only to increase the reaction rate but also to increase the selectivity of fluorination.In some cases substitution of a primary chlorine atom is accompanied by hydride transfers.
