| 摘要 |
1,2-Fused five-membered or six-membered 1,3-dinitrogen-heterocyclic compounds, useful as anti-corrosion agents, having the formula <IMAGE> (I) wherein A is an optionally substituted, optionally polynuclear orth- or peri-arylene radical and B is an optionally substituted alkylene chain <IMAGE> WHEREIN R1 and R2 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 <IMAGE> (II) wherein A and B have the meanings indicated above and R3and R4 are hydrogen, lower alkyl, cycloalkyl or aralkyl but at least one of the two radicals R3 and R4 must represent hydrogen.
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