(+/-)-(Z)-9-(Bromomethylene)-1,5,5-trimethylspirol[5.5]undeca-1,7-dien-3-one (1), a chamigrane sesquiterpene having a novel bromomethylene group is synthesized from anisole via spiroannelation of 4-(1,1-dimethyl-4-formylbutyl)-3-cyclohexen-1-one (10).
(+/-)-(Z)-9-(
溴甲基)-1,5,5-三甲基螺[5.5]十一-1,7-二烯-3-酮 (1),是一种含有新颖
溴甲基取代基的chamigrane
倍半萜,通过4-(
1,1-二甲基-4-醛基丁基)-3-
环己烯-1-酮 (10) 的螺环化反应从
茴香醚合成得到。