申请人:Sumitomo Chemical Company, Limited
公开号:US05648496A1
公开(公告)日:1997-07-15
A process for producing an aminonitropyridine represented by the general formula [1], which comprises reacting a nitropyridine represented by the general formula [2] (wherein X.sup.1, X.sup.2 and X.sup.3 indicate a hydrogen atom, a halogen atom, a nitro group, a cyano group, an aryl group, an aromatic heterocycle or an alkyl group, etc.; Y is an oxygen atom; and n is 0 or 1) with an O-substituted hydroxylamine represented by the general formula [3] (wherein R.sup.4 is a hydrogen atom, an alkyl group, a cycloalkyl group or an aralkyl group; and R.sup.5 is an alkyl group or an aralkyl group) or a salt thereof in the presence of a base and a metal catalyst. ##STR1##
一种制备氨基硝基吡啶的方法,其通式表示为[1],包括将通式表示为[2]的硝基吡啶(其中X.sup.1、X.sup.2和X.sup.3表示氢原子、卤素原子、硝基、氰基、芳基、芳香杂环或烷基等;Y为氧原子;n为0或1)与通式表示为[3]的O-取代羟胺(其中R.sup.4为氢原子、烷基、环烷基或芳基烷基;R.sup.5为烷基或芳基烷基)或其盐在碱和金属催化剂存在下反应。 ##STR1##