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Conclusions The treatment of bis(trifluoromethyl)amine with triethylamine gives the triethylammonium salt of the bis(trifluoromethyl) azanion, which is capable of being alkylated under mild conditions.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No.1, pp.212–214, January, 1976. 相似文献
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Bis(trifluoromethyl)zinc and methyl(trifluoromethyl)zinc have been identified by 19F and 1H NMR methods. The compounds were formed in the following reactions: (1) dimethylzinc and bis(trifluoromethyl)mercury and (2) dimethylzinc and bis(trifluoromethyl)cadmium. 相似文献
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E. A. Polenov V. V. Minin S. R. Sterlin L. M. Yagupol'skii 《Russian Chemical Bulletin》1978,27(2):419-421
Conclusions The reversible one-electron reduction of an isolated C =C double bond to give a stable anion-radical was observed for the first time on the example of tetrakis(trifluoromethyl)ethylene.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 2, pp. 482–484, February, 1978. 相似文献
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N. P. Gambaryan E. M. Rokhlin Yu. V. Zeifman I. L. Knunyants 《Russian Chemical Bulletin》1965,14(4):731-732
Summary Bis(trifluoromethyl)ketene anil was obtained by the reaction of triphenylphosphine phenylimine with perfluoroisobutylene. 相似文献
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Yoshiro Kobayashi Kosuke Kawada Akira Ando Itsumaro Kumadaki 《Tetrahedron letters》1984,25(18):1917-1920
The photolysis of 2,3-bis(trifluoromethyl)thiophene gave an equilibrium mixture of 2,3- and 3,4-bis(trifluoromethyl)Dewar thiophenes, while that of 2,5-bis(trifluoromethyl)thiophene gave 2,4-bis(trifluoromethyl)-thiophene, which seemed to be formed through an intermediate other than the Dewar form. 相似文献
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Cihang Yu Dr. Agnes Kütt Prof. Dr. Gerd-Volker Röschenthaler Dr. Tomas Lebl Dr. David B. Cordes Prof. Dr. Alexandra M. Z. Slawin Prof. Dr. Michael Bühl Prof. Dr. David O'Hagan 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2020,132(45):20077-20081
We report the synthesis of all-cis 1,2,4,5-tetrakis (trifluoromethyl)- and all-cis 1,2,3,4,5,6-hexakis (trifluoromethyl)- cyclohexanes by direct hydrogenation of precursor tetrakis- or hexakis- (trifluoromethyl)benzenes. The resultant cyclohexanes have a stereochemistry such that all the CF3 groups are on the same face of the cyclohexyl ring. All-cis 1,2,3,4,5,6-hexakis(trifluoromethyl)cyclohexane is the most sterically demanding of the all-cis hexakis substituted cyclohexanes prepared to date, with a barrier (ΔG) to ring inversion calculated at 27 kcal mol−1. The X-ray structure of all-cis 1,2,3,4,5,6-hexakis(trifluoromethyl)cyclohexane displays a flattened chair conformation and the electrostatic profile of this compound reveals a large diffuse negative density on the fluorine face and a focused positive density on the hydrogen face. The electropositive hydrogen face can co-ordinate chloride (K≈103) and to a lesser extent fluoride and iodide ions. Dehydrofluorination promoted decomposition occurs with fluoride ion acting as a base. 相似文献
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V. M. Nagaev G. A. Sokolsky S. S. Khokhlov A. F. Yeleyev 《Russian Chemical Bulletin》1998,47(1):134-138
6-Substituted 7-halo-3,3-bis(trifluoromethyl)-2-azabicyclo[2.2.1]heptanes were synthesized by the addition of water, alcohols, and acetic acid to 3-halo-7,7-bis(trifluoromethyl)-1-azatricyclo[2.2.1.02,6]heptanes in the presence of H2SO4. 5,6-Disubstituted 3,3-bis(trifluoromethyl)-2-azabicyclo[2.2.1]heptanes were prepared by oxymercuration of 3,3-bis(trifluoromethyl)-2-azabicyclo[2.2.1]hept-5-ene. 相似文献
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V. M. Nagaev G. A. Sokolsky S. S. Khokhlov A. F. Yeleyev 《Russian Chemical Bulletin》1997,46(9):1572-1576
Methods for the synthesis ofanti-3-halo-7, 7-bis(trifluoromethyl)-1-azatricyclo[2.2.1.02,6]heptanes by conjugated halogenation of 3,3-bis(trifluoromethyl)-2-azabicyclo[2.2.1]hept-5-ene have been developed. Hydrohalogenation
of the synthesized 1-azatricyclic compounds gives exclusively 6,7-dihalo-3,3-bis(trifluoromethyl)-2-azabicyclo[2.2.1]heptanes.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 9, pp. 1649–1653, September, 1997. 相似文献
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Yoshiro Kobayashi Takaharu Nakano Kazuharu Shirahashi Akira Takeda Itsumaro Kumadaki 《Tetrahedron letters》1980,21(48):4615-4618
The title cyclopropenylketone reacts with azo compounds and tri-phenylphosphine to give unique heterocycles; tricyclourazoles and a diazaoxacyclooctatriene. The formers were converted into a pyridazine. 相似文献