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Reductive N-O Cleavage of Weinreb Amides by Sodium in Alumina and Silica Gels: Synthetic and Mechanistic Studies. -Sodium metal trapped in the nanoscale pores of alumina gel efficiently reduces Weinreb amides (I) in simple batch reaction mode. However, competing reductions of functional groups such as C-Cl or C-C double bonds are observed. -(JACKSON*, J. E.; O'BRIEN, B. N.; KEDZIOR, S. K.; FRYZ, G. R.; JALLOH, F. S.; BANISAFAR, A.; CALDWELL, M. A.; BRAUN, M. B.; DUNYAK, B. M.; DYE, J. L.; Tetrahedron Lett. 56 (2015) 45, 6227-6230, http://dx.doi.org/10.1016/j.tetlet.2015.09.099 ; Dep. Chem., Mich. State Univ., East Lansing, MI 48824, USA; Eng.) -Mais 09-104