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Clean Synthesis (clean + synthesis)
Selected AbstractsChemInform Abstract: Clean Synthesis of Triarylamines: Buchwald,Hartwig Reaction in Water with Amphiphilic Resin-Supported Palladium Complexes.CHEMINFORM, Issue 24 2010Yoshinori Hirai Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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] ChemInform Abstract: A Clean Synthesis of 3,3-Bis(5-amino-1H-pyrazol-4-yl)indolin-2-one Derivatives.CHEMINFORM, Issue 1 2009Somayeh Ahadi 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] ChemInform Abstract: Electrochemically Induced Aza-Henry Reaction: A New, Mild, and Clean Synthesis of ,-Nitroamines.CHEMINFORM, Issue 9 2008Leucio Rossi 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] Clean Synthesis of 14-Alkyl and 14-Aryl-14-H-dibenzo[a,j]xanthenes.CHEMINFORM, Issue 14 2007Tong-Shou Jin 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] Clean Synthesis of Pyrido[2,3-d]pyrimidines in Aqueous Media.CHEMINFORM, Issue 9 2006Daqing Shi 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] Clean Synthesis of 1,8-Dioxo-octahydroxanthene Derivatives Catalyzed by p-Dodecylbenzenesulfonic Acid in Aqueous Media.CHEMINFORM, Issue 33 2004Tong-Shou Jin Abstract For Abstract see ChemInform Abstract in Full Text. [source] Clean synthesis of propylene carbonate from urea and 1,2-propylene glycol over zinc,iron double oxide catalystJOURNAL OF CHEMICAL TECHNOLOGY & BIOTECHNOLOGY, Issue 5 2006Xinqiang Zhao Abstract A series of zinc,iron double oxide catalysts has been prepared. The suitable preparation conditions are as follows: zinc nitrate and iron nitrate as precursors, molar ratio of Zn/Fe 2:1, ammonia as the precipitant, precipitation end-point pH 8.04, and calcination temperature 450 °C. The clean synthesis of propylene carbonate (PC) via urea and 1,2-propylene glycol (PG) over the zinc,iron double oxide catalyst has been studied. The optimal reaction conditions are as follows: reaction temperature 170 °C, reaction time 2 h, catalyst concentration 1.4% (wt), and molar ratio of urea to PG 1:4. The highest yield of PC was 78.6%. XRD, CO2 -TPD and XPS techniques have been employed for catalyst characterization. Two kinds of crystal phase, ZnO and ZnFe2O4, have been detected and their synergistic effect promotes the catalytic activity of the oxide catalysts. Copyright © 2006 Society of Chemical Industry [source] An efficient and clean synthesis of pyrido[2,3- d]pyrimidine-4,7-dione derivatives in aqueous mediaJOURNAL OF HETEROCYCLIC CHEMISTRY, Issue 6 2009Da-Qing Shi A series of 2-amino-5-aryl-5,6-dihydropyrido[2,3- d]pyrimidine-4,7(3H,8H)-dione derivatives were synthesized via the three-component reaction of aromatic aldehyde, 2,6-diaminopyrimidine- 4(3H)-one, and Meldrum's acid in water in the presence of triethylbenzylammonium chloride (TEBAC). This protocol has the advantages of easier work-up, milder reaction conditions, and environmentally benign procedure. J. Heterocyclic Chem., (2009). [source] A clean synthesis of polyhydroacridine and indenoquinoline derivatives catalyzed by triethylbenzylammonium chloride in aqueous mediaJOURNAL OF HETEROCYCLIC CHEMISTRY, Issue 4 2006Xiang-Shan Wang An efficient and convenient synthesis of benzo[a]acridines and indeno[1,2- b]benzo[f]quinolines was achieved in high yields by the reaction of N -arylidenenaphthalen-2-amine with 1,3-dicarbonyl compounds catalyzed with triethylbenzylammmonium chloride (TEBAC) in aqueous media. The structures were established by spectroscopic data and further confirmed by X-ray analysis. This method provides several advantages such as neutral conditions, high yields and simple work-up procedure. In addition, water was chosen as a green and recyclable solvent. [source] | ||||||||||