Tetrabutylammonium tetra (tert-butyl alcohol) coordinated fluoride-an efficient reagent for the synthesis of fluorine derivatives of phosphorus(V) compounds
作者:Hemendra K. Gupta、Deepak Pardasani、Avik Mazumder、Ajay Kumar Purohit、Devendra K. Dubey
DOI:10.1016/j.tetlet.2009.03.151
日期:2009.6
Direct conversion of phosphorus(V) chlorides to the corresponding phosphorus(V) fluorides was achieved using a solid reagent, tetrabutylammoniumtetra (tert-butylalcohol) coordinated fluoride. The phosphorus(V) fluorides were directly synthesized and efficiently isolated in very good yields.
New reactions of fluoroepoxides. Cleavage by trialkyl phosphites
作者:A.A. Kadyrov、G.G. Bargamov、E.M. Rokhlin
DOI:10.1016/s0022-1139(00)80854-4
日期:1993.12
Mono-, di- and tri-substituted fluorine-containing α-oxides have been shown to enter into reactions with trialkylphosphites which proceed through cleavage of the CC and CO bonds in the epoxide ring. The trialkoxyphosphorus ylides II, V, VII and VIII were obtained from the epoxides I, IV, VII and XVI. Triethoxyfluorocarbonylfluorophosphorane (IIIb) has been isolated and characterized. Further conversions
Rapid and efficient solid-supported reagent synthesis of fluorine derivatives of phosphorus(V) compounds
作者:Timothy Sierakowski、James J. Kiddle
DOI:10.1016/j.tetlet.2005.02.026
日期:2005.3
Direct conversion of phosphorus(V) chlorides to the corresponding phosphorus(V) fluorides was achieved utilizing a solid-supportedreagent. The phosphorus(V) fluorides were straightforwardly synthesized and efficiently isolated in very good yields.
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.
Fluoride-Mediated Dephosphonylation of α-Diazo-β-carbonyl Phosphonates
作者:Ravindra S. Phatake、Venkannababu Mullapudi、Vivek C. Wakchaure、Chepuri V. Ramana
DOI:10.1021/acs.orglett.6b03573
日期:2017.1.20
executed. The resulting α-diazocarbonyl intermediates undergo a (3 + 2)-cycloaddition at room temperature with conjugated olefins and benzynes. Interestingly, under the current conditions, the resulting cycloaddition products underwent either N-acylation (with excess α-diazo-β-carbonyl phosphonates) or Michael addition (with conjugated olefins).