Supporting Information-Comparative chemical analysis of volatile compounds of Echinops ilicifolius using hydrodistillation and headspace solid-phase microextraction and the antibacterial activities of its essential oil

Comparative chemical analysis of volatile compounds of <i>Echinops ilicifolius</i> using hydrodistillation and headspace solid-phase microextraction and the antibacterial activities of its essential oi

Supporting Information

GC and GC/MS chromatograms of volatile compounds obtained from Echinops ilicifoliu

Comparative chemical analysis of volatile compounds of Echinops ilicifolius using hydrodistillation and headspace solid-phase microextraction and the antibacterial activities of its essential oil

Echinops ilicifoliu

An efficient one-pot synthesis of highly functionalized selenophenes

The reaction between active alkenes such as 2-pyridin-2-yl-methylene-malononitrile or ethyl-2-cyano-3-pyridin-2-yl-acrylate and acetylenic esters in the presence of KSeCN at room temperature provided a simple and efficient one-pot route for the synthesis of highly functionalized selenophenes. The reaction is characterized by mild conditions, short reaction time and tolerance to various functional groups and the products were fully characterized by multinuclear (1H, 13C, and 77Se) NMR spectroscopy.</p

Synthesis of Functionalized γ-Spiroiminolactones through a One-Pot Three-Component Reaction of Isocyanides, Acetylenic Esters, and 6<i>H</i>-Indeno[1,2-<i>b</i>]pyrido[3,2-<i>e</i>]pyrazin-6-one

<p>A new and efficient isocyanide-based one-pot multi-component reaction has been described for the synthesis of novel ?-spiroiminolactone derivatives. Products were obtained by a three-component condensation reaction between isocyanides with acetylenic esters which was trapped with 6H-indeno[1,2-b]pyrido[3,2-e]pyrazin-6-one (aromatic ketone) in CH2Cl2 without use of any catalyst or activator in excellent yields.</p

One-Pot, Sequential Four-Component Synthesis of Benzo[<i>a</i>]chromeno[2,3-<i>c</i>]phenazine Derivatives Using SiO₂–SO₃H as an Efficient and Recoverable Catalyst Under Conventional Heating and Microwave Irradiation

<p>Silica sulfuric acid (SiO₂–SO₃H) has been used as an effective and reusable solid catalyst for the one-pot, two-step, four-component microwave-assisted synthesis of benzo[a]chromeno[2,3-c]phenazine derivatives by the condensation reaction of 2-hydroxynaphthalene-1,4-dione, o-phenylenediamine, aldehydes, and cyclic 1,3-dicarbonyl compounds. This new procedure has a number of advantages such as: high yields, very short reaction time, operational simplicity, simple work-up procedures and avoidance of hazardous or toxic catalysts, and organic solvents and is devoid of inessential derivatization and generation of hazardous substances. Moreover, the catalyst shows high thermal stability and can be recovered and reused without loss of reactivity.</p