Reactions of In Situ Generated <i>N</i>-Boc Nitrones with Aromatic and Heteroaromatic Grignard Reagents: Application to the Synthesis of Zileuton
作者:Xavier Guinchard、Jean-Noël Denis
DOI:10.1021/jo7025838
日期:2008.3.1
A new class of α-aromatic-N-hydroxylamines has been prepared by reaction of tert-butyl (phenylsulfonyl)alkyl-N-hydroxycarbamates with aromatic and heteroaromatic Grignardreagents. Reactions proceed via a base-assisted elimination of the phenylsulfonyl group leading to N-Boc nitrones. This methodology has been applied to the synthesis of zileuton.