Zobrazeno 1 - 10
of 108
pro vyhledávání: '"E A, Rokhlin"'
Publikováno v:
Journal of Fluorine Chemistry. 65:195-201
Mono-, di- and tri-substituted fluorine-containing α-oxides have been shown to enter into reactions with trialkyl phosphites which proceed through cleavage of the CC and CO bonds in the epoxide ring. The trialkoxyphosphorus ylides II , V , VII
Publikováno v:
ChemInform. 25
Mono-, di- and tri-substituted fluorine-containing α-oxides have been shown to enter into reactions with trialkyl phosphites which proceed through cleavage of the CC and CO bonds in the epoxide ring. The trialkoxyphosphorus ylides II , V , VII
Publikováno v:
ChemInform. 21
Publikováno v:
ChemInform. 21
By reacting bis(trifluoromethyl)ketene with ethylene glycol, 1,4-butylene glycol, or hydroquinone the corresponding bis-α-hydrohexafluoroisobutyrates are obtained, which on dehydrofluorination with Et3N·BF3 yield bis-pentafluoromethacrylates.
Publikováno v:
Russian Chemical Reviews. 58:1145-1156
The reactions involving reduction of electrophilic double bonds (C=C, C=O, C=N, and N=N) with amines (usually tertiary) that contain hydrogen atoms at the α-position have been classified. The key stage in such reactions is formation of an iminium sa
Autor:
I. L. Knunyants, Yu. V. Zeifman, U. Utebaev, T.V. Lushnikova, Yo.G. Abduganiev, E. M. Rokhlin
Publikováno v:
Journal of Fluorine Chemistry. 6:227-240
Adduct (C2H5)3N·BF3 has proved to be a suitable dehydrofluorinating reagent for preparing highly reactive fluoroolefines through dehydrofluorination of corresponding monohydro derivatives. Its advantage over other dehydrofluorinating agents are demo
Autor:
E. M. Rokhlin, A. A. Kadyrov
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 30:2143-2149
1. Esters of pentafluoroisopropenylphosphonic acid were obtained by dehydrofluorination of the corresponding esters ofα-hydrohexafluoroisopropylphosphonic acid or the loss of alkyl fluoride from hexafluoroisopropylidenetrialkoxyphosphoranes by the a
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 25:129-134
1. Perfluoromethacrylic acid derivatives (methyl ester and dimethylamide) easily add carboxylic acids at the C=C bond to give comparatively stableα-hydro-β-acyloxypentafluoroisobutyric acid derivatives. These adducts when heated are cleaved to the
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 25:124-128
When heated in the presence of a catalytic amount of BF3 etherate,α-trifluoromethyl-β-diethylamino-β-fluoroacrylic acid N, N-dimethylamide is reversibly isomerized toα-trifluoromethyl-β-dimethylamino-β-fluoroacrylic acid N, N-diethylamide. The
Autor:
A A Kadyrov, E M Rokhlin
Publikováno v:
Russian Chemical Reviews. 57:852-863