2,4,6-三甲基苯乙酸 、
草酰氯 、
3-(p-Hydroxy-phenyl)-Δ2-pyrazolin 在
1-[3-(4-hydroxy-phenyl)-4,5-dihydro-pyrazol-1-yl]-2-(2,4,6-trimethyl-phenyl)-ethanone 作用下,
以to give final compound 1-[3-(4-hydroxy-phenyl)-4,5-dihydro-pyrazol-1-yl]-2-(2,4,6-trimethyl-phenyl)-ethanone (53)的产率得到1-[3-(4-hydroxy-phenyl)-4,5-dihydro-pyrazol-1-yl]-2-(2,4,6-trimethyl-phenyl)-ethanone