A new organosilylpolyphosphoric reagent, its preparation and application to the process of synthesis of 3-carboxyquinolones or azaquinolones and their salts
申请人:CENTRO MARGA PARA LA INVESTIGACION S.A.
公开号:EP0376870A1
公开(公告)日:1990-07-04
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.
一种制备新的有机硅聚磷酸酯的方法,通过磷五氧化物与硅氧烷或烷氧基硅烷的反应得到溶液中的试剂,其组成为[P₂O₅]N[SILANE],其中1 < N < 10,N是温度、反应时间和溶剂的函数,用于调节N-取代氨基亚甲基丙二酸酯的环化反应,形成喹啉酮或氮代喹啉酮。N-取代氨基亚甲基丙二酸酯是通过苯胺与二烷基三甲基硅氧基亚甲基丙二酸酯的反应制备的。