When treated with cyanoacetic ester in conc. H2SO4 1-(4-hydroxy-3-methoxyphenyl)- and 1-(3-hydroxy-4-methoxyphenyl)-2-methylpropan-1-ol form ethyl 7-hydroxy-6-methoxy-3,3-dimethyl(or 6-hydroxy-7-methoxy- 3,3-dimethyl)-1,2,3,4-tetrahydroisoquinolylidene-1-acetate.
当用
氰基
乙酸酯浓溶液处理时。H 2 SO 4 1-(
4-羟基-3-
甲氧基苯基)-和1-(3-羟基-4-
甲氧基苯基)-2-甲基
丙烷-1-醇形成乙基7-羟基-6-甲氧基-3,3-二甲基(或6-羟基-7-甲氧基-3,3-二甲基)-
1,2,3,4-四氢异喹啉-1-乙酸酯。