3a,6-dimethyl-1-propan-2-yl-6-[5-tri(propan-2-yl)silylpent-4-ynyl]-3,4,7,8-tetrahydro-2H-azulen-5-one                                                                                                                                                              在
                                                                                                                                                                                 
四丁基氟化铵                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
四氢呋喃                                                                                  为溶剂,
                                                                                                                                                    反应 0.03h,
                                                                                                                生成                                                 (3aα,6S*)-1-isopropyl-3a,6-dimethyl-6-(5-pent-4-ynyl)-2,3,3a,4,7,8-hexahydroazulen-5(6H)-one   、                                                                                             
(3aα,6R*)-1-isopropyl-3a,6-dimethyl-6-(5-pent-4-ynyl)-2,3,3a,4,7,8-hexahydroazulen-5(6H)-one