Contributions to bis(perfluoroalkyl) chalkogenide chemistry: preparation of (Rf)2SeO [Rf = C2F5, (CF3)2CF, n-C4F9], (Rf′)2TeX2 [X = F, Cl: Rf′ = n-C3F7, (CF3)2CF, n-C4F9; X = Br: Rf′ = n-C3F7, n-C4F9], (CF3)2Te(NSO)2 and (C2F5)2Te(OH)NO3
摘要:
The reaction between perfluoroalkyl iodides with a threefold excess of a 1 : 1 molar mixture of Se and Cu is a new method for the preparation of corresponding monoselenides (la-c) and diselenides (2a-d). They are oxidised with HOF without a solvent to bis(perfluoroalkyl) selenium(IV) oxides (3a-d). Halogenation of (R-f)(2)Te with XeF2, Cl-2 or Br-2 yielded (R-f)(2)TeF2(7a-c), (R-f)(2)TeCl2 (8a-c) and (R-f')(2)TeBr2 (9a, 9c). Oxidation of (C2F5)(2)Te with cone. HNO3 gave (C2F5)(2)TeCOH)NO3 (4). When (CF3)(2)TeCl2 is treated with AgNSO metathesis took place forming (CF3)(2)Te(NSO)(2), (6). Two (C6F5)(2)Te(VI) derivatives with the general formula (C6F5)(2)TeX4. with X = CF3C(O)O (5) and F are made from (C6F5)(2)TeO2 and CF3C(O)OH or SP4, respectively. The monotelluride (n-C6F13)(2)Te was synthesised similarly from n-C6F13I, Te and Cu. X-ray structures for 3d, 8a, and 8b are provided. (C) 2000 Elsevier Science S.A. All rights reserved.
Organoselenium derivatives of metal carbonyls. Part II. Dimeric and monomeric derivatives of iron carbonyl
作者:P. Rosenbuch、N. Welcman
DOI:10.1039/dt9720001963
日期:——
respective selenoalkyl and perfluoroalkyl iron tricarbonyl dimers, [Fe(CO)3Se(R)]2(R = CH3, C2H5, CF3, or C2F5), while the i-C3H7 derivative is obtained by the reaction of the same iron carbonyl with perfluoroisopropylselenol. The two compounds of the type [(C5H5)Fe(CO)Se(R)]2(R = C2H5 or n-C3H7) resulted from the reaction between the cyclopentadienylirondicarbonyldimer, [(C5H5)Fe(CO)2]2, and the appropriate
十二羰基三铁与二甲基和二乙基二硒化物以及相应的双全氟烷基二硒化物反应,得到相应的硒代烷基和全氟烷基铁三羰基二聚体[Fe(CO)3 Se(R)] 2(R = CH 3,C 2 H 5,CF 3或C 2 F 5),而iC 3 H 7衍生物是通过相同的羰基铁与全氟异丙基硒醇的反应获得的。[[C 5 H 5)Fe(CO)Se(R)] 2类型的两种化合物(R = C 2 H 5或nC 3H 7)是由环戊二烯基铁二羰基二聚体[[(C 5 H 5)Fe(CO)2 ] 2和适当的二烷基二硒化物之间的反应产生的。