申请人:Hoffmann-La Roche Inc.
公开号:US05332821A1
公开(公告)日:1994-07-26
A process for the preparation of isoquinolines of the formula ##STR1## wherein R is methyl or benzyl and R' is phenyl, p-hydroxyphenyl or p-methoxyphenyl, by reacting a solution of an enamine of the formula ##STR2## wherein R and R' are as described above, in a hydrocarbon with an anhydrous solution of p-toluenesulphonic acid in toluene or xylene at an elevated temperature.
一种制备式为##STR1##的异喹啉的方法,其中R是甲基或苄基,R'是苯基、对羟基苯基或对甲氧基苯基,通过在烃中反应式为##STR2##的烯胺的溶液,其中R和R'如上所述,与甲苯磺酸的无水溶液在升高的温度下进行。