[image omitted] A diastereospecific synthesis of N-vinyl heterocyclic compounds is described from a reaction of dialkyl acetylenedicarboxylate and N-H heterocyclic compounds, such as phthalimide, saccharin, 3(2H)-pyridazinone, isatin, maleimide, 2,4-thiazolidinedione, 2-benzoxazolinione and 6-chloro-2-benzoxazolinione, in the presence of triphenylarsine as an efficient catalyst, in excellent yield. The presented one-pot method is simple and effective with mild conditions.
Pyridine-Mediated <i>N</i>-Vinylation of Heterocyclic Compounds: A Mild, Stereoselective and General Synthesis
作者:Azam Shahraki、Alireza Hassanabadi
DOI:10.3184/174751914x14112003835373
日期:2014.10
A good yield from the stereoselective synthesis of N-vinylated heterocyclic compounds is described involving the reaction of acetylenicesters and NH heterocyclic compounds in the presence of pyridine. This one-pot method is simple, effective under mild conditions and affords excellent yields.