Darstellung von bis(trifluormethylthio)keten (CF3S)2C=C=O
作者:A. Haas、M. Lieb、H.-W Praas
DOI:10.1016/s0022-1139(00)83949-4
日期:1989.8
Bis(trifluoromethylthio)ketene (CF3S)2C=C=O has been synthesized by dehydration of (CF3S)2CHC(O)OH or HCl elimination from (CF3S)2CHC(O)Cl and fully characterized. Some reactions of the ketene are presented.
双(三氟甲硫基)乙烯酮(CF 3 S)2 C = C = O是通过(CF 3 S)2 CHC(O)OH脱水或从(CF 3 S)2 CHC(O)Cl完全去除HCl合成的表征。介绍了烯酮的一些反应。
Preparation and Reactivity of Tris(trifluoromethylselanyl)carbenium [(CF
<sub>3</sub>
Se)
<sub>3</sub>
C
<sup>+</sup>
] and Trifluoromethylsulfanylacetic Acid Derivatives [(CF
<sub>3</sub>
S)
<sub>
3–
<i>n</i>
</sub>
CX
<sub>
<i>n</i>
</sub>
(O)R]
作者:Alois Haas、Guido Möller
DOI:10.1002/cber.19961291112
日期:1996.11
Reaction pathways for the synthesis of the (CF3E)3C moieties (E = Se, S) are described. [(CF3Se)3C+][AsF] was found to be a suitable synthon for the preparation of (CF3Se)3C derivatives. It can be prepared either from (CF3Se)3C derivatives. It can be prepared either from (CF3Se)4C or (CF3Se)3CF and AsF5 in liquid SO2. Direct access to (CF3Se)3CF was realized by the reaction of FCBr3 with Hg(SeCF3)2
Ergebnisse aus versuchen zur darstellung von bis(trifluormethylsulphanyl)thioketen (CF3S)2CCS
作者:Alois Haas、Hans-Walter Praas
DOI:10.1016/s0022-1139(00)80029-9
日期:1993.2
The attempted preparation of bis(trifluoromethylsulphanyl)thioketene is described. Mono-and di-(trifluoromethylsulphanyl)-substituted orthothioesters may be prepared fromCH3C(SC2H5)3 and CF3SCl in the presence of anhydrous ZnCl2. The unstable compoundshave been isolated and characterized. The corresponding CF3Se and CF3SO2 derivativesare only formed as intermediates which decompose to ketene diethylmercaptal
Bis(trifluormethylsulfanyl)carben (CF3S)2C:; Generierung und Nachweis
作者:Michael Dorra、Alois Haas
DOI:10.1016/0022-1139(93)02896-m
日期:1994.1
Irradiation of bis(trifluoromethylsulfanyl)ketene (2) with UV light in an Ar matrix at 10 K produces CO, CS2 and C2F6, which have been identified by infrared spectroscopy and interpreted as the decomposition products of bis(trifluoromethylsulfanyl)carbene (1). Irradiation of 2 in n-hexane at 283 K provides the bis(trifluoromethylsulfanyl)methyl radical (3) as an unstable intermediate by ESR spectroscopy. If 2 is irradiated neat or in C6F6 solution, small yields of (CF3S)2C=C(SCF3)2 (5) are obtained. The formation of 3 from 1 is discussed.