Total Syntheses of (±)-(Z)- and (±)-(E)-9-(Bromomethylene)-1,5,5-trimethylspiro[5.5]undeca-1,7-dien-3-one and (±)-Majusculone - Zhu, Jia-Liang; Huang, Po-Wei; You, Ruei-Yi; Lee, Fa-Yan; Tsao, Sheng-Wei; Chen, I-Chia (Synthesis, 2011)