Chemoselective Intramolecular Alkylation of the Blaise Reaction Intermediates: Tandem One-Pot Synthesis of <i>exo</i>-Cyclic Enaminoesters and Their Applications toward the Synthesis of <i>N</i>-Heterocyclic Compounds
作者:Ju Hyun Kim、Hyunik Shin、Sang-gi Lee
DOI:10.1021/jo201964a
日期:2012.2.3
The intramolecular alkylative reactivity and N/C selectivity of the various Blaise reaction intermediates, which are formed from the reaction of the Reformatsky reagents with omega-chloroalkyl nitriles, did not reach the synthetic potential as an entry to exo-cyclic enaminoesters. To circumvent this issue, various additives were investigated, among which the addition of NaHMDS dramatically enhanced the reactivity and N/C selectivity. This modification provided a highly efficient route for the synthesis of various N-fused heterocyclic compounds, as it requires only two steps from nitriles.
CELERIER, J. -P.;DELOISY-MARCHALANT, E.;LHOMMET, G., J. HETEROCYCL. CHEM., 1984, 21, N 6, 1633-1635
作者:CELERIER, J. -P.、DELOISY-MARCHALANT, E.、LHOMMET, G.
DOI:——
日期:——
Eugene, Marina; Celerier, Jean-Pierre; Ronzani, Nello, Journal of Heterocyclic Chemistry, 1993, vol. 30, # 4, p. 985 - 988