Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Synthetic route to 14-methoxy, 5-benzyl substituted 21. Reaction scheme for the synthesis of 5-benzyl substituted morphinans. Reagents and conditions: (a) NaH, (CH3O)2SO2, DMF, 0 °C; (b) 10% Pd/C, H2, MeOH, 30 psi, r.t.; (c) 48% HBr, reflux.
