反应详情

61 G. of 1-carbethoxy-4-(10,11-dihydro-3-methoxy-8-methylthio-dibenzo[b,f]thiepin-10-yl)-piperazine, 600 ml. of ethylene glycol, 25 g. of potassium hydroxide and 2.7 ml. of water are heated at 160°C. for a period of 2 hours. Then, the mixture is poured on to water and extracted with benzene. The organic phase is washed with water, dried over magnesium sulfate and evaporated under reduced pressure, whereby there is obtained 1-(10,11-dihydro-3-methoxy-8-methylthio-dibenzo[b,f]thiepin-10-yl)-piperazine.

1. extractionextracted with benzene
2. washThe organic phase is washed with water
3. dry with materialdried over magnesium sulfate
4. customevaporated under reduced pressure