KHSO4 is an efficient catalyst for the condensation of β-naphthol, aromatic aldehydes, and 5,5-dimethyl-1,3-cyclohexanedione at 100°C to afford 9,9-dimethyl-12-phenyl-8,10,11,12-tetrahydro-9
在100°C下,KHSO4是β-萘酚、芳香醛和5,5-二甲基-1,3-环己二酮的缩合反应的高效催化剂,产率为80-95%,得到9,9-二甲基-12-苯基-8,10,11,12-四氢-9