| Reference: | Masamune; et al Tetrahedron Lett. 1988, 29, 451. DOI |
| Keywords: | Alkyl-OH -> Ketone • CarboxAcid -> CarboxEster • Li-Phosphonate+Aldehyde • HWE -> Dienone • Lactone-15+ • |
| Reagents: | P(O)(OMe)2CH2Li • CrO3·Py2 (Collins) • P(O)(OMe)2CH2-C(O)R • Carbodiimide • Carbonate, potassium • Hydroxide, lithium • DMAP • 18-cr-6 • |