Main Reaction: 2-cyclohexen-1-one + isobutene >> trans- fused octanone + cis- fused octanone

Reference: PubMed ID: 26734099
Authors: Huber T, Weisheit L, Magauer T
Title: Synthesis of Xenia diterpenoids and related metabolites isolated from marine organisms.
Published: 2015 Dec 10

2-cyclohexen-1-one + isobutene --> trans- fused octanone + cis- fused octanone