发明公开
EP0357137A2 New silylating agent for the preparation of chromatographic supports
失效
Silylierungsmittel zur Herstellung von色谱仪Trägern。
- 专利标题： New silylating agent for the preparation of chromatographic supports
- 专利标题（中）： Silylierungsmittel zur Herstellung von色谱仪Trägern。
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申请号： EP89202171.8申请日： 1989-08-28
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公开(公告)号： EP0357137A2公开(公告)日： 1990-03-07
- 发明人: Cardinali, Franco , Longobardi, Maria Grazia , Viscomi, Giuseppe Claudio , Ziggiotti, Alessandra
- 申请人： ENIRICERCHE S.p.A. , SCLAVO S.p.A.
- 申请人地址： Corso Venezia 16 I-20121 Milan IT
- 专利权人： ENIRICERCHE S.p.A.,SCLAVO S.p.A.
- 当前专利权人： ENIRICERCHE S.p.A.,SCLAVO S.p.A.
- 当前专利权人地址： Corso Venezia 16 I-20121 Milan IT
- 代理机构： Gervasi, Gemma, Dr.
- 优先权： IT2181088 19880902
- 主分类号： C07F7/18
- IPC分类号： C07F7/18 ; B01J20/32
摘要：
A new mono-silylating agent of general formula (I)
(R₁,R₂,R₃)Si-NH-CO-O-Si(R₁,R₂,R₃) (I)
is described as well as its use in the preparation of chromatographic supports based on silica with functional groups covalently bonded thereto, the so-called "bonded stationary phases".
The new compounds are easy and safe to prepare from the corresponding mono-halosilanes with ammonium carbamate, and their use as silylating agents leads to stationary phases with a higher degree of surface coating than that attainable with the corresponding chlorosilanes.
(R₁,R₂,R₃)Si-NH-CO-O-Si(R₁,R₂,R₃) (I)
is described as well as its use in the preparation of chromatographic supports based on silica with functional groups covalently bonded thereto, the so-called "bonded stationary phases".
The new compounds are easy and safe to prepare from the corresponding mono-halosilanes with ammonium carbamate, and their use as silylating agents leads to stationary phases with a higher degree of surface coating than that attainable with the corresponding chlorosilanes.
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