A new organosilylpolyphosphoric reagent, its preparation and application to the process of synthesis of 3-carboxyquinolones or azaquinolones and their salts.

摘要

A process for the preparation of new organosilylpolyphosphates from the reaction of phosphorus pentoxide with a siloxane or alkyloxysilane to obtain, in solution, reagents the composition of which is [P2O5]N[SILANE], where 1 < N < 10 where N is a function of temperature, reaction time and solvent, being applied to the modulation of cyclization reaction of N-susbtituted aminomethylenemalonates leading to quinolones or azaquinolones. The N-substituted aminomethylenemalonates are prepared by the reaction of anilines with dialkyl trimethylsilyloxymethylene-malonates.