
Tetrahedron p. 3223 - 3230 (1997)
Update date:2022-08-11
Topics:
Kamal, Ahmed
Howard, Philip W.
Reddy, B.S. Narayan
Reddy, B.S. Praveen
Thurston, David E.
A facile procedure for the preparation of the imine form of the pyrrolo(2,1-c][1,4]-benzodiazepine ring system by the oxidation of eyelid secondary amine with catalytic amounts of tetra-n-propylammonium perruthenate (TPAP) and N-methylmorpholine N-oxide (NMO) as a co-oxidant is described. This oxidative method is devoid of side-products and is thus a significant improvement over the Swern oxidation previously reported.
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