| Reference: | Carretero, J. J.; Ghosez, L Tetrahedron Lett. 1988, 29, 2059. DOI |
| Keywords: | Ketal -> Diol • Orthoester -> CarboxEster • Lactone-6 • Wittig-alkyl -> Ene-cis • Li-Sulfone+Epoxide • O-H -> O-SO2R • Dehydrosulfonylation -> EneLactone • Diol -> Epoxide • |
| Reagents: | Ph3P=CH-Alkyl • HCl, MeOH • NaOMe • Epoxide • LiCHR-Sulfonyl • TsOH • NEt3 • TsCl, Py • |