申请人:Bayer Aktiengesellschaft
公开号:US04048174A1
公开(公告)日:1977-09-13
1,2-FUSED FIVE-MEMBERED OR SIX-MEMBERED 1,3-DINITROGEN-HETEROCYCLIC COMPOUNDS, USFUL AS ANTI-CORROSION AGENTS, HAVING THE FORMULA ##STR1## wherein A is an optionally substituted, optionally polynuclear orth- or peri-arylene radical and B is an optionally substituted alkylene chain ##STR2## WHEREIN R.sup.1 and R.sup.2 individually represent hydrogen and/or optionally substituted aliphatic, cycloaliphatic, araliphatic or aromatic radicals and n represents a number from 3 to 6, Or B is an optionally substituted 1,8-naphthylene, 2,2'-diphenylene or 4,5-phenanthrylene radical, Are prepared by splitting a five-membered or six-membered 1,3- dinitrogen-heterocyclic compound, which contains a 2-(.omega.-amino group) side chain, having the formula ##STR3## wherein A and B have the meanings indicated above and R.sup.3 and R.sup.4 are hydrogen, lower alkyl, cycloalkyl or aralkyl but at least one of the two radicals R.sup.3 and R.sup.4 must represent hydrogen.
制备成为抗腐蚀剂的1,2-融合的五元或六元1,3-二氮杂环化合物,具有以下结构式##STR1## 其中A是可选择取代的、可选择多核的邻位或间位芳基烃基,B是可选择取代的烷基链##STR2## 其中R.sup.1和R.sup.2分别代表氢和/或可选择取代的脂肪、环脂、芳基烃基或芳香族基,n表示3到6之间的数字,或者B是可选择取代的1,8-萘基、2,2'-二苯基或4,5-菲基烃基,通过分解含有2-(ω-氨基)侧链的五元或六元1,3-二氮杂环化合物来制备,该化合物具有以下结构式##STR3## 其中A和B具有上述所示的含义,R.sup.3和R.sup.4分别为氢、较低烷基、环烷基或芳基烃基,但两个基团R.sup.3和R.sup.4中至少有一个必须表示氢。