INTRAMOLECULAR INTERCEPTION OF REACTIVE INTERMEDIATES IN THE RANEY-NICKEL GENERATED IN-SITU REDUCTION OF OXIMES - SYNTHETIC AND MECHANISTICIMPLICATIONS
A. Kascheres et Raf. Rodrigues, INTRAMOLECULAR INTERCEPTION OF REACTIVE INTERMEDIATES IN THE RANEY-NICKEL GENERATED IN-SITU REDUCTION OF OXIMES - SYNTHETIC AND MECHANISTICIMPLICATIONS, Tetrahedron, 52(40), 1996, pp. 12919-12930
Reduction of oximes 4, obtained from 1,5 di-hydro-2H-pyrrol-2-ones 3,
with Raney nickel ''generated in situ'' afforded pyrrolo [3,2b] pyrrol
one derivatives 6 and 7 and in some cases, amines 5, The reduction of
4 with W7 Rang nickel afforded only amines 5. Mechanistic aspects of t
hese reductions were investigated The formation of 6 and 7 is attribut
ed to the deactivation of the catalyst by sodium hydroxide. Copyright
(C) 1996 Elsevier Science Ltd