| 摘 要： | Eversinceβ-vetivoneanditscongenerswererecognizedtohavespiro[4,5]decaneratherthanthehydroazuleneskeleton,[1]themembersofthisclasshavebecomeafavoritetargetforsynthesis.Herein.weshowafacileconversionofthemajorphotoproductformedinthereactionofmethyl2,4-dioxopentancate(1)with1,5-dimethyl-6-methylenecyclochexene(2)[2]intovetispiranederivatives,hinesol(3),ametaboliteofAtractylodeslancea[3,4],andagarospirol(4)foundinAquilariaagollocha,[5]inracemicforms,respectively.WhenanEtoAsolutionof1and2wasintema…
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