A facile conversion of thio- and selenophosphoric acids and their derivatives into fluoridates by means of reaction with silver fluoride
作者:Arkadiusz Chworoś、Lucyna A. Woźniak
DOI:10.1016/s0040-4039(99)01977-2
日期:1999.12
Treatment of numerous thio- or selenophosphorus acids with aqueous silver fluoride in CHCl3 at room temperature results in clean formation of the corresponding fluoridates. Analogous results were obtained with other phosphorothio (seleno)ates such as esters, amidates, or halides.
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.
THE METHYL ESTER OF 3-AZIDOTETRAFLUOROPROPIONIC ACID - A NOVEL REAGENT FOR THE OXIDATIVE FLUORINATION OF GROUP 15 AND 16 ELEMENTS
作者:Sergei A. Lermontov、Igor M. Rakov、Sergei V. Shkavrov
DOI:10.1080/10426509908037024
日期:1999.1.1
Abstract The methyl ester of 3-azidotetrafluoropropionic acid, N3-CF2CF2COOMe oxidatively fluorinates P(III), Sb(III) and Te(II) compounds to form the corresponding difluorides in good yield.
Photochemical selective fluorination of organic molecules using mercury (II) fluoride
作者:Mohammed H. Habibi、Thomas E. Mallouk
DOI:10.1016/s0022-1139(00)80299-7
日期:1991.2
Organic compounds, such as triphenylacetic acid, triphenyl ethylene, and triethyl phosphite can be selectively fluorinated in dimethylsulfoxide/ HgF2 solutions under UV-visible illumination. Product yields, determined by 19F-NMR, are essentially quantitative for the compounds studied, and in some cases only a single fluorinated product is formed.
Fluorination of derivatives of tri- and pentavalent phosphorus acids by perfluoropropylene oxide
作者:S. A. Lermontov、I. M. Rakov、I. V. Martynov
DOI:10.1007/bf01184543
日期:1990.12
Perfluoropropylene (I) efficiently fluorinates esters and ester anhydrides of P(III) and P(V) acids to give acid fluoride derivatives of pentavalent phosphorus acids. Phosphites are initially oxidized to the corresponding phosphoryl compounds with subsequent substitution of the oxygen by two fluorine atoms by means of excess oxide (I).