US 7,321,038 B2
Method for the catalytic production of hydrocodone and hydromorphone
Peter Xianqi Wang, Chesterfield, Mo. (US); and Carl Ray White, St. Louis, Mo. (US)
Assigned to Mallinckrodt Inc., Hazelwood, Mo. (US)
Filed on Oct. 25, 2004, as Appl. No. 10/973,031.
Application 10/973031 is a continuation in part of application No. 10/495503, filed on May 13, 2004.
Prior Publication US 2005/0124811 A1, Jun. 09, 2005
This patent is subject to a terminal disclaimer.
Int. Cl. C07D 489/02 (2006.01); C07D 489/00 (2006.01)
U.S. Cl. 546—45  [546/44; 546/46] 32 Claims
 
1. A method comprising catalytically converting a compound of Formula I into a compound of Formula II utilizing at least one transition metal complex of the formula [M(PR3R4R5)nXm]p; wherein R1 is H, alkyl, aryl or acyl; M is a Group VIII transition metal; R3, R4 and R5 are selected from the group consisting of alkyl, aryl, alkoxyl, phenoxyl and combinations thereof; X is H, a halide or an anion; n is 1, 2, 3 or 4; m is 1 or 2; and p is at least 1.

OG Complex Work Unit Drawing