ol9b00044_si_001.pdf (2.86 MB)
A Nine-Step Formal Synthesis of (±)-Morphine
journal contribution
posted on 2019-02-20, 13:39 authored by Julie Brousseau, Amandine Xolin, Louis BarriaultA nine-step stereoselective
formal synthesis of (±)-morphine
from readily available o-vanillin is presented. The
carbocyclic structure of morphine was quickly assembled through an
orchestration of the intermolecular Diels–Alder/Claisen/Friedel–Crafts
sequential reaction. This approach involves many one-pot procedures
and no protecting groups, and only a few chromatographic purifications
are required.