申请人:Bayer Aktiengesellschaft
公开号:US04490551A1
公开(公告)日:1984-12-25
A process for producing urethanes by reacting aromatic amino compounds with aliphatic, cycloaliphatic or araliphatic alcohols and carbon monoxide under conditions of elevated temperature and pressure characterized in that the reaction takes place in the presence of (a) selenium, selenium compounds, sulfur and/or sulfur compounds, (b) aromatic nitro compounds, (c) tertiary organic amines and/or alkali metal salts of weak acids, (d) oxidizing agents of a specified group and, optionally (e) ammonia and/or aliphatic, araliphatic, cycloaliphatic or heterocyclic amines containing at least one hydrogen atom bound to an amine nitrogen.
一种通过在提高温度和压力的条件下,使芳香胺化合物与脂肪族、环脂肪族或芳脂肪族醇以及一氧化碳反应来生产尿烷的方法,其特征在于反应在(a) 硒、硒化合物、硫和/或硫化合物,(b) 芳香硝基化合物,(c) 三级有机胺和/或弱酸的碱金属盐,(d) 特定组的氧化剂以及可选的(e) 氨和/或至少含有一个氢原子与胺氮结合的脂肪族、芳脂肪族、环脂肪族或杂环胺的存在下进行。