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Eco-Friendly Synthesis (eco-friendly + synthesis)
Selected AbstractsA Rapid Eco-Friendly Synthesis of Poly(butylene succinate) by a Direct Polyesterification under Microwave IrradiationMACROMOLECULAR RAPID COMMUNICATIONS, Issue 14 2005Sivan Velmathi Abstract Summary: A rapid and eco-friendly synthesis of poly(butylene succinate) (PBS) using microwaves was developed in the presence of 1,3-dichloro-1,1,3,3-tetrabutyldistannoxane as catalyst. To determine the optimum conditions, the effect of catalyst concentration, bulk vs. solution polymerization, reaction time, temperature, and stoichiometry of the monomers were studied. Based on the optimum conditions, PBS with a weight-average molecular weight of 2.35,×,104 was obtained in a short time of 20 min. Synthesis of poly(butylene succinate) under microwave irradiation. [source] ChemInform Abstract: Eco-Friendly Synthesis of 2,3-Dihydroquinazolin-4(1H)-ones in Ionic Liquids or Ionic Liquid,Water Without Additional Catalyst.CHEMINFORM, Issue 3 2008Jiuxi Chen Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] Eco-Friendly Synthesis of Novel Lariat Ethers via Mannich Reaction under Solventless Conditions.CHEMINFORM, Issue 44 2007Hashem Sharghi Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] Fast and Eco-friendly Synthesis of Dipyrromethanes by H2SO4·SiO2 Catalysis under Solvent-free ConditionsCHINESE JOURNAL OF CHEMISTRY, Issue 2 2010Yan Zhang Abstract For the first time, sillica-supported sulfuric acid has been used as a heterogeneous, reusable and efficient catalyst at room temperature to give the corresponding dipyrromethanes in a very short reaction time. The new reaction procedure is simple and solvent is not required. [source] Facile, efficient, and eco-friendly synthesis of benzo[b]pyran-2-imines over MgO and transformation to the coumarin derivativesJOURNAL OF HETEROCYCLIC CHEMISTRY, Issue 6 2009Hassan Valizadeh Room temperature synthesis of benzo[b]pyran-2-imine derivatives via the Knoevenagel condensation of malononitrile and cyanoacetates with salicylaldehyde derivatives over MgO and their transformation to the known coumarins is described. The satisfactory results were obtained with good yields, short reaction time, and simplicity in the experimental procedure. J. Heterocyclic Chem., (2009). [source] A Rapid Eco-Friendly Synthesis of Poly(butylene succinate) by a Direct Polyesterification under Microwave IrradiationMACROMOLECULAR RAPID COMMUNICATIONS, Issue 14 2005Sivan Velmathi Abstract Summary: A rapid and eco-friendly synthesis of poly(butylene succinate) (PBS) using microwaves was developed in the presence of 1,3-dichloro-1,1,3,3-tetrabutyldistannoxane as catalyst. To determine the optimum conditions, the effect of catalyst concentration, bulk vs. solution polymerization, reaction time, temperature, and stoichiometry of the monomers were studied. Based on the optimum conditions, PBS with a weight-average molecular weight of 2.35,×,104 was obtained in a short time of 20 min. Synthesis of poly(butylene succinate) under microwave irradiation. [source] | ||||||||||