Synthesis of Noroxymorphone by N-Demethylation/ Intramolecular Acylation of Oxymorphone Catalyzed by Iron(II) Chloride
作者:Tomas Hudlicky、Mary Ann A. Endoma-Arias、Ales Machara、D. Phillip Cox
DOI:10.3987/com-15-s(t)63
日期:——
Oxymorphone was converted to its 3,14-diacetate and subjected to Fe(11)/t-BuOOH-catalyzed N-demethylation that occurred with concomitant acyl migration from the C-14 hydroxyl to the N-17 nitrogen. The resulting diacetyl compound was hydrolyzed in dilute sulfuric acid to noroxymorphone in good yield.
US8946214B2
申请人:——
公开号:US8946214B2
公开(公告)日:2015-02-03
US9108967B2
申请人:——
公开号:US9108967B2
公开(公告)日:2015-08-18
US9533993B2
申请人:——
公开号:US9533993B2
公开(公告)日:2017-01-03
[EN] PROCESS FOR THE PREPARATION OF MORPHINE ANALOGS VIA METAL CATALYZED N-DEMETHYLATION/FUNCTIONALIZATION AND INTRAMOLECULAR GROUP TRANSFER<br/>[FR] PROCÉDÉ DE PRÉPARATION D'ANALOGUES DE MORPHINE PAR N-DÉMÉTHYLATION/ FONCTIONNALISATION CATALYSÉE PAR UN MÉTAL ET TRANSFERT DE GROUPE INTRAMOLÉCULAIRE
申请人:UNIV BROCK
公开号:WO2012151669A1
公开(公告)日:2012-11-15
The present application is directed to an efficient conversion of C-14 hydroxylated morphine alkaloids to various morphine analogs, such as naltrexone, naloxone and nalbuphone. One feature of this process is an intramolecular functional group transfer from the C-14 hydroxyl to the N-17 nitrogen atom following a palladium-catalyzed N-demethylation.