Carbonyl difluoride: a versatile fluorinating reagent
作者:O. D. Gupta、Jean'ne M. Shreeve
DOI:10.1039/c39840000416
日期:——
Carbonyldifluoride is a readily accessible reagent for introducing fluorine into molecules by oxidative addition to the central atom or by displacement of hydrogen from P–H, N–H, or C–H bonds.
Simple preparation of difluorophosphoranes using anhydrous zinc and tetramethylammonium fluorides
作者:Alexander A. Kolomeitsev、Frank U. Seifert、Gerd-Volker Röschenthaler
DOI:10.1016/0022-1139(94)03150-x
日期:1995.3
(R=nBu, NMe2, NEt2) are easily fluorinated using zinc difluoride in pyridine or tetramethylammonium fluoride in methylene chloride to give the corresponding difluorophosphoranes R3PF2 in high yield. A simple procedure for preparing pure tetramethylammonium fluoride is described.
photochemical reaction of SF6 with phosphines, which selectively produces difluorophosphoranes and phosphine sulfides. Computational and experimental studies show that the π(Ar) → σ*(SF6) charge-transfer excitation of a preformed R3P⋯SF6 complex is the initial activation step. Using triphenylphosphine, the decomposition of SF6 was carried out in a solvent-free, scalable process, giving a 3 : 1 mixture of
SF 6的化学活化因其可能用作化学合成中廉价且安全的试剂而引起了相当多的关注。当与技术应用后强效温室气体的处理相结合时,这种过程变得特别有吸引力。在此,我们报道了SF 6与膦的光化学反应,该反应选择性地产生二氟正膦和硫化膦。计算和实验研究表明,预先形成的 R 3 PSF 6复合物的 π(Ar) → σ*(SF 6 ) 电荷转移激发是初始激活步骤。用三苯膦,分解SF 6在无溶剂、可扩展的过程中进行,得到二氟三苯基正膦和三苯基硫化膦 (TPP-Fluor) 的 3:1 混合物,用于醇和羧酸的脱氧氟化以及制备常见的六氟磷酸盐。
Reaction of perfluoroisobutylene with tributylphosphine
作者:E. G. Ter-Gabrielyan、N. P. Gambaryan、I. L. Knunyants
DOI:10.1007/bf00953586
日期:1981.2
Beiträge zur chemie des iodpentafluorids Teil IV. IF5 ein selektives oxidatives fluorierungs-mittel für organophosphor(III)-verbindungen