Perfluoroalkyl derivatives of nitrogen. Part LIII [1]. Reaction of perfluoro(2,5-dimethyl-4-oxa-3,5-diazahex-2-ene) with fluoro-olefins
作者:R. Fisher、R.N. Haszeldine、A.E. Tipping
DOI:10.1016/s0022-1139(00)81112-4
日期:1983.2
Thermal decomposition of the title compound at 140 °C gives mainly nitrogen, hexafluoroacetone and tetrakis-trifluoromethylhydrazine while reaction with tetrafluoroethylene and chlorotrifluoroethylene affords equimolar mixtures of the 1:1 adducts (CF3)2CNCF2CFXON(CF3)2 and (CF3)2CNCF2CFON(CF3)2 (X=F and Cl) in high yield via four-centre addition or a radical-cage process.
Zur synthese perhalogenierter 1,3-dithietan-s-oxide und thiirane
作者:K. Rall、W. Sundermeyer
DOI:10.1016/s0022-1139(00)80454-6
日期:1990.4
2-Dichloro-3,3-bis(trifluoromethyl) thiirane 4 and 2- chloro-2-fluoro-3,3-bis(trifluoromethyl) thiirane 5 were synthesized by the reaction of bis(trifluoromethyl)diazomethane 1 with thiophosgene 2 or chlorofluorothiocarbonyl 3. Starting from the 1,3-dithietanes 6 and 10 the 1,3-dithietane-S-oxides 7, 8, 11 and 13 could be obtained by use of various oxidation agents. 2,3-Dichloro-2,3-bis(trifluoromethyl) thiirane
An electron-rich olefin as a source of co-ordinated carbene; synthesis of trans-PtCl<sub>2</sub>[C(NPhCH<sub>2</sub>)<sub>2</sub>]PEt<sub>3</sub>
作者:D. J. Cardin、B. Cetinkaya、M. F. Lappert、Lj. Manojlović-Muir、K. W. Muir
DOI:10.1039/c29710000400
日期:——
Interaction of the appropriate electron-rich olefin and chloride bridged PtII dimer has yielded the unreactive trans-PtII carbene complex (I) which is belived to isomerise thermally to the cis-isomer; the structure of the trans-complex is established inter alia by a single crystal X-ray analysis.
Reaction of Bis(trifluoromethyl)diazomethane with Bis(trimethylsilyl)acetylene
作者:W. R. Cullen、F. L. Hou
DOI:10.1139/v71-455
日期:1971.8.15
The reaction of bis(trifluoromethyl)diazomethane with bis(trimethylsilyl)acetylene yields 1,2-bis-(trimethylsilyl)-3,3-bis(trifluoromethyl)cyclopropene in low yield. The cyclopropene has an unexpectedly high C=C stretching frequency.
Hexafluoroacetone hydrazone condenses with ketones and aldehydes to give azines. β-Diketones give either azino-enols or hydrazino-ketones depending on the substrate. Aldehydes capable of aldol condensation and some α, β-unsaturated carbonyl compounds give pyrazoles. Isocyanates yield semicarbazones and acid chlorides give hydrazides. Variable-temperature NMR processes in hexafluoroacetone azines are