申请人:Petrolite Corporation
公开号:US04101654A1
公开(公告)日:1978-07-18
Quaternary nitrogen-heterocyclic phosphonates wherein the phosphonate group is ortho- or para- to the nitrogen heterocyclic group, where the compounds are characterized as follows: ##STR1## WHEREIN THE DOTTED LINE REPRESENTS A CYCLIC STRUCTURE WHICH CYCLIC STRUCTURE MAY BE THE SOLE CYCLIC STRUCTURE, OR MAY BE ATTACHED TO OTHER CYCLIC GROUPS, WHERE R is a hydrocarbon or a substituted hydrocarbon group such as alkyl, aryl, alkaryl, aralkyl, etc., and X is an anion such as halogen, a sulfite, a sulfate, s sulfonate-containing group, etc. These nitrogen-heterocyclic phosphonates are prepared by reacting an aromatic nitrogen-heterocyclic compound, wherein the nitrogen atom is in the form of a quaternary alkoxy derivative (N-OR hereinafter defined) with a phosphite salt, preferably in the form of an ester of the phosphite, as exemplified by the following equation: ##STR2## Quaternaries of these compounds are prepared by further reaction with a quaternizing agent. These compounds which may be characterized as quaternaries of phosphonates of nitrogen-heterocyclics have many uses including their use as biocides, such as bacteriocides, herbicides, corrosion inhibitors, chelating agents, etc.
四元氮杂环膦酸盐,其中膦酸盐基团位于氮杂环基团的邻位或对位,该化合物的特征如下:##STR1## 其中虚线表示环状结构,该环状结构可以是唯一的环状结构,也可以连接其他环状基团。其中,R是烃或取代烃基团,例如烷基,芳基,烷基芳基,芳基烷基等,X是阴离子,例如卤素,亚硫酸盐,硫酸盐,含磺酸盐基团等。这些氮杂环膦酸盐是通过将芳香性氮杂环化合物与膦酸盐反应制备而成,其中氮原子以四元烷氧衍生物(N-OR,下称)的形式存在,膦酸盐最好是膦酸盐酯的形式,例如以下方程式:##STR2## 这些化合物的四元盐可通过进一步与四元化试剂反应制备而成。这些化合物可被描述为氮杂环膦酸盐的四元盐,具有许多用途,包括作为生物杀菌剂,如细菌杀菌剂,除草剂,防腐剂,螯合剂等。