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Your search keyword '"Ahmed, Atiur"' showing total 5 results
Start Over Author "Ahmed, Atiur" Topic palladium catalysts
5 results on '"Ahmed, Atiur"'

1. ZnCl2 and Pd/C catalyzed synthesis of 2-substituted indoles.

Author

Ahmed, Atiur, Ghosh, Munmun, Sarkar, Pompy, and Ray, Jayanta K.

Subjects
*ZINC chloride, *METAL catalysts, *PALLADIUM catalysts, *HETEROCYCLIC compounds synthesis, *INDOLE, *SUBSTITUTION reactions, *RING formation (Chemistry), *CHEMICAL reactions
Abstract

Abstract: A facile, mild, efficient, and copper-free method has been developed for the synthesis of 2-substituted indoles via domino Sonogashira coupling/cyclization reaction catalyzed by ZnCl2 and palladium on carbon with simultaneous formations of C–C and C–N bonds. [Copyright &y& Elsevier]

Published
2013
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2. Palladium-catalyzed and KO t Bu-promoted Caryl–Oalcoholic coupling: an efficient one-pot synthesis of oxygen containing fused rings

Author

Ahmed, Atiur, Dhara, Shubhendu, and Ray, Jayanta K.

Subjects
*PALLADIUM catalysts, *POTASSIUM hydroxide, *ALCOHOL, *COUPLING agents (Chemistry), *OXYGEN, *ALDEHYDES
Abstract

Abstract: An efficient one-pot synthetic method has been developed for the synthesis of oxygen containing fused rings from 2′-bromo-biaryl-2-carbaldehyde via tandem reduction followed by palladium-catalyzed and KO t Bu-promoted Caryl–Oalcoholic coupling. [Copyright &y& Elsevier]

Published
2013
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3. Aerobic ligand-free domino Suzuki coupling—Michael addition reaction catalyzed by in situ generated palladium nanoparticles in water: a general method for the synthesis of benzo[c]chromene derivatives

Author

Ahmed, Atiur, Nuree, Yasin, and Ray, Jayanta K.

Subjects
*COUPLING reactions (Chemistry), *MICHAEL reaction, *LIGANDS (Chemistry), *PALLADIUM catalysts, *METAL nanoparticles, *WATER, *CHEMICAL bonds
Abstract

Abstract: A general method has been developed for the synthesis of benzo[c]chromene derivatives via aerobic ligand-free domino Suzuki coupling and Michael addition reaction catalyzed by in situ generated palladium nanoparticles in water leading to C–C and C–O bond formations simultaneously. [Copyright &y& Elsevier]

Published
2013
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4. ChemInform Abstract: Palladium Catalyzed One-Pot Synthesis of 2-(Pyridin-4-yl) Quinolines via a Multicomponent Unprecedented Reaction of Pyridine-4-carbaldehyde, 2-Iodoaniline and Triethylamine.

Author

Ahmed, Atiur, Dhara, Shubhendu, Singha, Raju, Nuree, Yasin, Sarkar, Pompy, and Ray, Jayanta K.

Subjects
*BENZALDEHYDE, *PALLADIUM catalysts, *IMINES
Abstract

Using benzaldehyde (VII) as aldehyde component or 2-bromoaniline (IXa) or 2-iodo-4,6-dimethylaniline (IXb), resp., as amine component, gives intermediate imines only. [ABSTRACT FROM AUTHOR]

Published
2015
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5. ChemInform Abstract: Palladium-Catalyzed and KOtBu-Promoted Caryl-Oalcoholic Coupling: An Efficient One-Pot Synthesis of Oxygen-Containing Fused Rings.

Author

Ahmed, Atiur, Dhara, Shubhendu, and Ray, Jayanta K.

Subjects
*PALLADIUM catalysts, *COUPLING reactions (Chemistry), *OXYGEN, *PALLADIUM hydrides, *ALDEHYDES
Abstract

A convenient approach to benzochromene derivatives is achieved via hydride reduction of aldehydes (III) and subsequent intramolecular Pd-catalyzed cyclization of the resulting alcohols. [ABSTRACT FROM AUTHOR]

Published
2013
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