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Recent Patents on Catalysis (Discontinued)

Editor-in-Chief

ISSN (Print): 2211-548X
ISSN (Online): 2211-5498

Review Article

Patented Routes for the Preparation of the Morphinan Derivatives Hydromorphone and Hydrocodone Via Catalytic Isomerization

Author(s): Alba E. Diaz-Alvarez and Victorio Cadierno

Volume 1, Issue 1, 2012

Page: [43 - 50] Pages: 8

DOI: 10.2174/2211548X11201010043

Abstract

Hydromorphone and hydrocodone are widely used narcotic analgesics. In this mini-review article, processes for the preparation of these semi-synthetic opioids from the naturally occurring opiates morphine and codeine, respectively, via catalytic isomerization of the allylic alcohol unit of the latter are discussed. Relevant patents in the field are presented.

Keywords: Codeine, hydrocodone, hydromorphone, morphinan derivatives, morphine, redox isomerization of allylic alcohols, transition-metal complexes.


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