نتایج جستجو برای: pot synthesis

تعداد نتایج: 417578  

2012
Cosmas O. Okoro Tasneem Siddiquee

This article describes one-pot synthesis of new fluorinated hexahydroquinoline derivatives via unsymmetric Hantzsch reaction involving 5-trifluoromethyl-1,3cyclohexanedione, aldehydes, acetoacetate ester, and ammonium acetate in trifluoroethanol (TFE). The reaction is simple and rapid with high yield.

Journal: :Chemical communications 2011
David M Barber Hitesh Sanganee Darren J Dixon

An efficient, easy to perform, one-pot reaction cascade for the synthesis of 2,5-disubstituted pyrroles from p-toluenesulfonyl protected imines and 4-nitrobut-1-yne under a combination of base and gold(III) catalysis is reported.

Journal: :Chemical communications 2013
Arvind K Yadav Vishnu P Srivastava Lal Dhar S Yadav

An efficient and operationally simple synthesis of fluoroalkanes by deoxygenative hydrofluorination of carbonyl compounds via their tosylhydrazone surrogates is reported. The reaction can be carried out in a one-pot procedure directly from carbonyl compounds.

Journal: :Chemical communications 2011
Anthony Yoboué Audrey Susset Asma Tougerti Daniel Gallego Sudarsan Venkat Ramani Malathi Kalyanikar Dmitriy S Dolzhnikov Sileshi G Wubshet Yilun Wang Sylvain Cristol Valérie Briois Camille La Fontaine Régis M Gauvin Jean-François Paul Elise Berrier

Heterogeneous Re/SiO(2) catalysts prepared using a one pot sol-gel synthesis were found to display high activity in the direct, selective methanol conversion to methylal, which is correlated to an unprecedented rhenium oxide structure.

Journal: :Journal of the American Chemical Society 2004
Ikuya Shibata Hirofumi Kato Nobuaki Kanazawa Makoto Yasuda Akio Baba

We report a one-pot synthesis of nitrogen heterocyclic compounds initiated by the allylation of the formyl group of bifunctional carbonyl compounds accompanying chemo-, regio-, and diastereoselective carbon-carbon bond formation in side chain moieties.

Journal: :Chemical communications 2013
Katherine A Mazzio Ken Okamoto Zhi Li Sebastian Gutmann Elisabeth Strein David S Ginger Rudy Schlaf Christine K Luscombe

A one pot method for organic/colloidal CdSe nanoparticle hybrid material synthesis is presented. Relative to traditional ligand exchange processes, these materials require smaller amounts of the desired capping ligand, shorter syntheses and fewer processing steps, while maintaining nanoparticle morphology.

Journal: :Chemical communications 2010
Mayca Onega Juozas Domarkas Hai Deng Lutz F Schweiger Timothy A D Smith Andrew E Welch Christophe Plisson Antony D Gee David O'Hagan

An efficient two-step, one-pot, biotransformation involving the fluorinase enzyme is described for the synthesis of 5-deoxy-5-[(18)F]fluororibose, a novel [(18)F]-fluorinated sugar suitable for positron emission tomography (PET) applications.

Journal: :Chemical communications 2012
Shovan Mondal Malek Nechab Nicolas Vanthuyne Michèle P Bertrand

The tandem Crabbé homologation-radical rearrangement of terminal enediynes leads, in a one-pot procedure, to the enantioselective synthesis of six- and seven-membered ring α-aminoesters bearing a quaternary stereocenter based on the phenomenon of memory of chirality.

Journal: :Chemical communications 2009
Patrick S Bäuerlein Ismael Arenas Gonzalez Jarno J M Weemers Martin Lutz Anthony L Spek Dieter Vogt Christian Müller

8-Hydroxy-6-methyl-5,6,7,8-tetrahydroimidazo[1,2-a]pyridine was formed selectively in high yields from N-(beta-methallyl)imidazole by a tandem hydroformylation-cyclization sequence, representing a novel one-pot catalytic synthesis of bicyclic imidazole derivatives.

Journal: :Chemical communications 2010
Arun K Ghosh Jorden Kass

We have developed a practical synthesis of unique nucleoside derivatives via TiCl(4) promoted multicomponent reaction of optically active dihydrofuran, ethyl pyruvate/glyoxylate, and a TMS protected nucleobase in a single-pot operation.

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