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Total synthesis of Butterfly Compound:
Reference: Sum, F. W.; Weiler, L. Chem. Commun. 1978, 985. DOI
Keywords: O-THP → O-H • KetoEster dianion+Alkyl-X • Alkyl-X+Enolate • Cu-Me+EnoateEster • ConjAdd-Elimination • ConjAdd Cu-R • KetoEster dianion+Alkyl-X • Alkyl-X+Enolate • Cu-Me+EnoateEster • ConjAdd-Elimination • Allyl-X → Allyl-Br • Finkelstein reaction • EnoateEster → Allyl-OH • Ketone → Enolphosphate • Ketone → EnolPhosphate • O-H → O-SO2Me •
Reagents: Acetoacetate • BuLi(n) • Bromoethanol • P(O)(OR)2Cl • LiCuMe2 • AlH4-Li+ • BuLi(n) • Bromide, lithium • Acetoacetate • BuLi(n) • P(O)(OR)2Cl • LiCuMe2 • NaH • NaH • Sulfonyl chloride, methane •

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