Addition of non-stabilized organolithium reagents to O-alkyl aldoximes in the presence of boron trifluoride etherate gives rise to O-alkyl hydroxylamines. The Z oxime isomer preferentially reacts under these reaction conditions. © 1988.
Rodriques, K. E., Basha, A., Summers, J. B., & Brooks, D. W. (1988). Addition of aryllithium compounds to oxime ethers. Tetrahedron Letters, 29(28), 3455–3458. https://doi.org/10.1016/0040-4039(88)85188-8