Facile and specific nickel-catalyzed de-N-allylation
作者:Takahiko Taniguchi、Kunio Ogasawara
DOI:10.1016/s0040-4039(98)00876-4
日期:1998.6
A general procedure for a chemoselective removal of the allyl (2-propenyl) functionality on basic, neutral and acidic nitrogens by diisobutylaluminum hydride or trimethylaluminum in the presence of a catalytic amount of (dppp)NiCl2 has been developed. (C) 1998 Elsevier Science Ltd. All rights reserved.
Direct Reductive <i>N</i>
-Functionalization of Aliphatic Nitro Compounds
direct reductive N‐functionalization of aliphatic nitro compounds is presented. The nitro group is partially reduced to a nitrenoid, with a mild and readily available combination of B2pin2 and zinc organyls. Thereby, the formation of an unstable nitroso intermediate is avoided, which has so far severely limited reductive transformations of aliphatic nitro compounds. The reaction is concluded by an electrophilic