发明名称 |
Prosess for fremstilling av polyeterfosfater |
摘要 |
The invention provides an improved process for the synthesis of compounds carrying at least one phosphate group, especially polyalkylene glycol phosphate compounds, said process comprising the steps of: (a) reacting a compound containing at least one primary alcohol moiety with a diaryl- or diaralkyl-halophosphate whereby to form the corresponding diaryl- or diaralkyl-phosphate ester; (b) reductively cleaving the resulting product; and (c) if desired, repeating steps (a) and (b) with the product of step (b) whereby to produce a compound carrying two or more phosphate groups. Advantages of the process in accordance with the invention are that this avoids the production of by-products and results in products which are low in impurities. Also provided are novel diaryl- and diaralkyl-phosphate ester compounds, in particular polyethylene glycol diphenylphosphate ester and derivatives thereof. |
申请公布号 |
NO20000276(A) |
申请公布日期 |
2000.01.20 |
申请号 |
NO20000000276 |
申请日期 |
2000.01.20 |
申请人 |
NYCOMED IMAGING AS |
发明人 |
SAINDANE, MANOHAR TUKARAM;LADD, DAVID LEE |
分类号 |
C07B61/00;C07F9/09;C07F9/113;C07F9/12;C08G65/32;C08G65/322;C08G65/335 |
主分类号 |
C07B61/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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