367-86-2Relevant articles and documents
Efficient phosphorus catalysts for the halogen-exchange (Halex) reaction
Lacour, Marie-Agnes,Zablocka, Maria,Duhayon, Carine,Majoral, Jean-Pierre,Taillefer, Marc
supporting information; experimental part, p. 2677 - 2682 (2009/10/20)
New families of monomeric to dendritic, and monocationic to multicationic (PNP) compounds have been prepared and tested as catalysts in halogen exchange (Halex) reactions. Some of them allow an increase in the efficiency of these reactions which are performed in some cases under the mildest conditions reported up to now.
A General Procedure for the Fluorodenitration of Aromatic Substrates
Maggini, Michele,Passudetti, Margherita,Gonzales-Trueba, Guadalupe,Prato, Maurizio,Quintily, Ugo,Scorrano, Gianfranco
, p. 6406 - 6411 (2007/10/02)
The synthesis of several fluoroaromatic compounds by a new procedure of fluorodenitration of nitroarenes is reported.The methodology is based on the principle that the nitrite ion, generated during the fluorodenitration processes and responsible for most of the undesired side reactions, can be trapped with a suitable reagent, e.g., phthaloyl difluoride or tetrafluorophthaloyl difluoride.The yields of fluoro compounds thus obtained are good to excellent, and the procedure is of general application.
THE SYNTHESIS OF ORGANOFLUORINE COMPOUNDS USING POTASSIUM FLUORIDE-TETRAPHENYLPHOSPHONIUM BROMIDE SYSTEMS.
Clark, James H.,Macquarrie, Duncan J.
, p. 111 - 114 (2007/10/02)
The reactivity of potassium fluoride in nucleophilic fluorine transfer reactions can appreciably enhanced by the presence of tetraphenyl phosphonium bromide.Rate accelerations are especially large in non dipolar aprotic solvents.
Process for the preparation substituted anilino acids
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, (2008/06/13)
Anilino acids of the formula STR1 wherein R is H or a metal cation; R2 is hydrogen or lower alkyl of 1 to 5 carbon atoms, lower alkenyl of 2 to 5 carbon atoms, lower haloalkyl of 1-4 carbon atoms, lower haloalkenyl of 2 to 4 carbon atoms, or lower cycloalkyl of 3 to 4 carbon atoms, Y is hydrogen, chloro, methyl group, or trifluoromethyl group, and X is hydrogen, chloro, or fluoro are prepared by reaction of an aryl halide of the formula STR2 where X1 is chloro or fluoro and X and Y are as defined above with the proviso that when X1 is chloro, X is hydrogen or chloro, and when X and Y are both chloro, X1 is fluoro with an α-amino acid of the formula STR3 where R and R2 are as defined above.
Thieno[3,2-b]-[1,5]benzodiazepines
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, (2008/06/13)
Thieno[1,5]benzodiazepines having useful CNS activity containing the novel tricyclic ring system: STR1 the 10-position being substituted by an amino, preferably a piperazino, group.