申请人:Siegel Konrad
公开号:US08563749B2
公开(公告)日:2013-10-22
Process for preparing 1,3-dihydro-2H-indol-2-ones, starting from thioalkyl-, or thiocycloalkyl-substituted indol-2-one compounds, involving
a) dissolving or suspending the thioalkyl-, or thiocycloalkyl-substituted indol-2-one compounds in a polar solvent,
b) adding a sulfur-containing salt to the solution or suspension, and
c) heating the reaction mixture under reflux at a temperature which corresponds at most to the boiling temperature of the solvent.
Use of the inventively prepared 1,3-dihydro-2H-indol-2-one as intermediates for the synthesis of fine chemicals and active ingredients from pharmacy and/or agriculture.
制备1,3-二氢-2H-吲哚-2-酮的过程,从含硫基烷基或硫代环烷基取代的吲哚-2-酮化合物开始,包括a)将含硫基烷基或硫代环烷基取代的吲哚-2-酮化合物溶解或悬浮在极性溶剂中,b)向溶液或悬浮液中加入含硫盐,c)在回流下加热反应混合物,温度最高不超过溶剂的沸点。发明性制备的1,3-二氢-2H-吲哚-2-酮作为合成精细化学品和药学和/或农业活性成分的中间体。