Synthesis of Pyrrolo[2,3-a]pyrrolizidino Derivatives Through Intramolecular 1,3-Dipolar Cycloaddition in Ionic Liquid Medium
摘要:
An ecofriently method for the synthesis of pyrrole-fused polycyclic heterocycles through intramolecular 1,3-dipolar cycloaddition reaction of azomethine ylides derived from pyrrole-2-carbaldehyde and secondary amino acids in ionic liquid [bmim][BF4] as green solvent is reported.
Synthesis of a series of novel tetrahydroquinoline annulated heterocycles has been accomplished by intramolecular imino and bisimino Diels-Alder reaction. These compounds were evaluated for their antibacterial activity. All the synthetic compounds, exhibited good antibacterial activity against microorganisms of which one of them 7 was found to be as active as the antibiotic ciplofloxacin and is found to have MIC value of 2.5 mg/mL against Escherichia coli. (C) 2008 Elsevier Ltd. All rights reserved.
Coupling Catalytic Alkene Hydroacylation and α-Arylation: Enantioselective Synthesis of Heterocyclic Ketones with α-Chiral Quaternary Stereocenters
作者:Avipsa Ghosh、James A. Walker、Arkady Ellern、Levi M. Stanley
DOI:10.1021/acscatal.6b00365
日期:2016.4.1
strategy that combines alkenehydroacylation and enantioselective α-(hetero)arylation reactions to form a wide variety of nitrogen-containing heterocyclic ketones bearing α-chiral quaternary stereogenic centers. Exo-selective, intramolecular Ni-catalyzed hydroacylations of N-homoallylindole- and N-homoallylpyrrole-2-carboxaldehydes form α-substituted six-membered heterocyclic ketones in up to 95% yield
Synthesis of Pyrrolo[2,3-<i>a</i>]pyrrolizidino Derivatives Through Intramolecular 1,3-Dipolar Cycloaddition in Ionic Liquid Medium
作者:Subban Kathiravan、Raghavachary Raghunathan
DOI:10.1080/00397911.2011.594545
日期:2013.1.1
An ecofriently method for the synthesis of pyrrole-fused polycyclic heterocycles through intramolecular 1,3-dipolar cycloaddition reaction of azomethine ylides derived from pyrrole-2-carbaldehyde and secondary amino acids in ionic liquid [bmim][BF4] as green solvent is reported.