申请人:Nalco Chemical Company
公开号:US04100167A1
公开(公告)日:1978-07-11
1-aminoalkane--1, 1-diphosphonic acids of the formula, ##STR1## may be produced in good yield by reacting a nitrile of the formula, R -- CH.sub.2 -- C .tbd. N with at least 2 moles of phosphorous acid in the presence of a high boiling hydrocarbon oil at a temperature ranging between 140.degree.-170.degree. C without a catalyst. In the above formula, R is hydrogen, alkyl, aryl, arylalkyl, substituted aryl, substituted alkyl, and substituted arylalkyl. These compounds show anti-corrosive activity.
可以通过在高沸点烃油的存在下,将具有以下结构的腈物质,R-CH2-C≡N,与至少2摩尔的磷酸在温度在140度至170度之间反应,而无需催化剂,从而以较高产率制备出下式的1-氨基烷基-1,1-二膦酸。在上述公式中,R代表氢、烷基、芳基、芳基烷基、取代芳基、取代烷基和取代芳基烷基。这些化合物具有抗腐蚀活性。