Microwave accelerated facile and efficient synthesis of piperido[3′,4′:5,6]pyrano[2,3-d] pyrimidinones catalyzed by basic ionic liquid [BMIM]OH

Star-like polyionic heterogeneous nanocatalyst as a highly active catalyst for promotion of Baylis–Hillman reaction in [bmim]Cl

“…After completion of the reaction, the products were isolated and purified by column chromatography using ethyl acetate/n-hexane as eluent. 13 3.60 (s, 3H), 3.14 (br s, 1H). 13 …”

“…In general, small Lewis base molecules, such as DABCO, DMAP, DBU, PPh 3 , PBu 3 or were recorded in KBr and determined on a Perkin Elmer FT-IR spectrometer. 1 H-NMR and 13 C-NMR spectra were recorded on a Bruker Avance AC-300 MHz using CDCl 3 as the deuterated solvent and TMS as the internal standard. The morphology of the catalyst was studied by field emission scanning electron microscopy (FESEM; Hitachi, model S-4160), and the structure of the catalyst was confirmed by energy-dispersive X-ray analysis (EDX; Tescan; model MIRA3FEG-SEM) and elemental analysis (CHNS; Euro EA; model EA2000).…”

“…br s, 1H) 13. C NMR (CDCl 3 , 75 MHz) δ 163.32, 144.15, 143.13, 132.24, 127.32, 120.41, 117.13, 113.34, 63.42, 50.59.…”

Brønsted Acidic 1-Ethyl-1,2,4-Trizolium Phenylsulfonate as Catalyst for Biginelli Reaction

“…The synthesis of organic, inorganic and any materials employed by green technology is a leading and challenging task in any field of research. [22][23][24][25][26]. The interest to synthesis a new example of triazolium based salt and improvement of reusable and eco-friendly catalytic transformations.…”

Use of Ionic Liquids as Neoteric Solvents in the Synthesis of Fused Heterocycles

“…In addition, a number of special issues have appeared covering a range of topics including ionic liquids as green solvents , physical and thermodynamic data and organometallic chemistry in ionic liquids . Syntheses of ionic liquids by using various methods have also been reported .…”