The isolation of a series of new sulphurdi-imides indicates that irreversible stepwise replacement of labile fluorine atoms accompanied by extensive rearrangement readily occurs during the reaction of SF4 with LiNC-(CF3)2.
Preparation and properties of difluoro(heptafluoroisopropyl)nitrilosulphur
作者:Alan F. Clifford、John S. Harman
DOI:10.1039/dt9740000571
日期:——
Difluoro(heptafluoroisopropyl)nitrilosulphur, NSF2CF(CF3)2(I), has been prepared by reacting NSF3 with C3F6 in the presence of CsF at 90 °C; further addition of C3F6 gives (CF3)2CFSFNCF(CF3)2. Above 60 °C compound (I) isomerises to F2SNCF(CF3)2. Both cis- and trans-(CF3)2CFSF4NSF2 have been isolated from the reaction between SF4 and (I) in the presence of HF. Spectroscopic data for the new compounds
NSF 2 CF(CF 3)2(I)是二氟(七氟异丙基)亚硝硫,是通过在90°C下在CsF存在下使NSF 3与C 3 F 6反应来制备的;进一步添加C 3 F 6得到(CF 3)2 CFSF NCF(CF 3)2。高于60℃,化合物(I)异构化为F 2 S NCF(CF 3)2。两个顺式-和反式- (CF 3)2 CFSF 4 Ñ SF在HF存在下,从SF 4和(I)之间的反应中分离出2。给出了新化合物的光谱数据。
The reactions of iminosulfur difluorides and chlorine monofluoride
作者:Ronald A. De Marco、Jean'ne M. Shreeve
DOI:10.1016/s0022-1139(00)83224-8
日期:1972.1
The reactions of perfluoroalkyl- and perfluoroacyl-iminosulfur difluorides with chlorinemonofluoride result in the preparation of perfluoroalkyldichloroamines and a new class of compounds N,N-dichloroperfluoroamides, RfC(O)NCl2, via the elimination of SF4. The amides, FC(O)NCl2 and CF3C(O)NCl2, in addition to 1,2-bis-(dichloroamino)tetrafluoroethane, Cl2NCF2CF2NCl2, are reported and characterized