发明名称 Catalyst for cleaning of exhaust gases from a lean- burning engine, and method for its manufacture
摘要 <p>The present invention relates to a method for producing therapeutically valuable .alpha.2-tert.-butylaminomethyl-4-hydroxy-m-xylene-.alpha.2 ,.alpha.3-diole, which has the formula and its acid addition salts, characterized in that an imine derivative having the formula where R stands for a lower straight-chain or branched hydrocarbon radical containing 1 to 6 carbon atoms, and Ar stands for an aryl group, is converted by simultaneous hydrogenation and reduction into a compound having the formula and from which the arylmethyl protective group is removed by catalytic hydration. The method, according to the invention, is appropriate for industrial production work wherein .alpha.2-tert.-buty-laminomethyl-4-hydroxy-m-xylene-.alpha.1,.alpha.3-diole can be easily produced with a good yield in a continuous process, without isolating the intermediate products.</p>
申请公布号 FI98274(A) 申请公布日期 1975.09.30
申请号 FI19740000982 申请日期 1974.03.29
申请人 HUHTAMAEKI-YHTYMAE OY 发明人 RUOHONEN J
分类号 C07C215/60;A61K31/13;A61K31/137;C07C;C07C67/00;C07C213/00;(IPC1-7):C07C/ 主分类号 C07C215/60
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