(+/-)-(2'E,4'E)-3-<5'-(3",3"-ethylenedioxy-1",2",6"-trimethylcyclohexyl)-3'-methyl-2',4'-pentadienyl>-1,5-dichloro-6-methyl-2,4-cyclohexanedione 在
1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下,
以
四氢呋喃 为溶剂,
反应 2.5h,
以62.6%的产率得到(+/-)-(2'E,4'E)-4-chloro-2-<5'-(3",3"-ethylenedioxy-1",2",6"-trimethylcyclohexyl)-3'-methyl-2',4'-pentadienyl>orcinol