[EN] PROCESS FOR PREPARING ACYLPHOSPHANES AND DERIVATIVES THEREOF<br/>[FR] PROCEDE DE PREPARATION D'ACYLPHOSPHANES ET DE DERIVES D'ACYLPHOSPHANES
申请人:CIBA SC HOLDING AG
公开号:WO2005014605A1
公开(公告)日:2005-02-17
The present invention relates to a new, selective process for the preparation of mono- and bisacylphosphanes of formula (I) n and m are each independently of the other 1 or 2; R1, if n = 1, is e.g. phenyl R1, if n = 2, is e.g. C1-C18alkylene or phenylene; R2 is e. g. C1-C18alkyl, phenyl or substituted phenyl; R3 is e. g. C1-C18alkyl, by (1) reacting a phosphorous halide of formula Ila or a phosphorous halide oxide of formula (Ilb) or a phosphorous halide sulfide of formula (IIc) with an alkali metal in a solvent in the presence of a proton source; (2) subsequent reaction with m acid halides of formula (III) An oxidation step may follow to obtain mono- and bisacylphosphane oxides or mono-and bisacylphosphane sulfides.
本发明涉及一种新的选择性制备式(I)的单酰基和双酰基膦化合物的方法,其中n和m分别独立取1或2;R1,如果n=1,则为例如苯基;如果n=2,则为例如C1-C18烷基或苯基;R2为例如C1-C18烷基、苯基或取代苯基;R3为例如C1-C18烷基,通过以下步骤实现:(1)在溶剂中,在质子源的存在下,将式IIa的磷卤化物或式IIb的磷卤化物氧化物或式IIc的磷卤化物硫化物与碱金属反应;(2)随后与m个式(III)的酸卤化物反应。氧化步骤可能随后进行,以获得单酰基和双酰基膦氧化物或单酰基和双酰基膦硫化物。