Efficient one-pot four-component synthesis of 1,4-dihydropyridines promoted by magnetite/chitosan as a magnetically recyclable heterogeneous nanocatalyst
نویسندگان
چکیده
منابع مشابه
Pr3+ doped CoFe2O4: A highly efficient, magnetically recoverable and reusable catalyst for one-pot four-component synthesis of multisubstituted pyrroles
A facile and highly efficient one-pot synthesis of multisubstituted pyrrole derivatives is reported via a four-component reaction of amines, aldehydes, acetylacetone and nitromethane using Pr3+ doped CoFe2O4 as a catalyst in solvent free conditions at 90°C. The catalyst is easily recoverable using magnet and could be reused without a significant loss of catalyti...
متن کاملPr3+ doped CoFe2O4: A highly efficient, magnetically recoverable and reusable catalyst for one-pot four-component synthesis of multisubstituted pyrroles
A facile and highly efficient one-pot synthesis of multisubstituted pyrrole derivatives is reported via a four-component reaction of amines, aldehydes, acetylacetone and nitromethane using Pr3+ doped CoFe2O4 as a catalyst in solvent free conditions at 90°C. The catalyst is easily recoverable using magnet and could be reused without a significant loss of catalyti...
متن کاملEfficient one-pot synthesis of 14-aryl-14 -dibenzo[ , ]xanthene derivatives promoted by niobium pentachloride
A simple and efficient procedure for the synthesis of 14-aryl-14H-dibenzo[a,j ]xanthene derivatives through one-pot condensation of 2-naphthol with aryl aldehydes in the presence of niobium pentachloride is described. The reactions were carried out using 25 mole % of NbCl5, at ambient temperature, and in acceptable reaction times, affording excellent yields of the products. c © 2014 Institute o...
متن کاملAn Efficient Synthesis of 4H-chromene Derivatives by a One-pot, Three-component Reaction
A facile and efficient one-pot, multicomponent synthesis of 4H-chromenes is reported, through the reaction of arylglyoxalmonohydrates with 1,3-diketones and malononitrile in eTEMPthanol in the presence of L-proline as a catalyst.
متن کاملUltrasound-promoted one-pot, four-component synthesis of pyridin-2(1H)-one derivatives.
An efficient one-pot synthesis of 1,6-diamino-2-oxo-1,2,3,4-tetrahydro- pyridine-3,5-dicarbonitrile derivatives by four-component piperidine-catalyzed reactions of a ketone, malononitrile, ethyl cyanoacetate and hydrazine hydrate under ultrasound irradiation is described. This method provides several advantages such as shorter reaction times, excellent yields, and a simple workup procedure.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Nanostructure in Chemistry
سال: 2014
ISSN: 2008-9244,2193-8865
DOI: 10.1007/s40097-014-0140-z