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Asish R Das
Asish R Das
Verified email at caluniv.ac.in
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Synthesis of new benzimidazole–coumarin conjugates as anti-hepatitis C virus agents
JR Hwu, R Singha, SC Hong, YH Chang, AR Das, I Vliegen, E De Clercq, ...
Antiviral Research 77 (2), 157-162, 2008
2222008
Structure− activity relationship of new anti-Hepatitis C virus agents: Heterobicycle− coumarin conjugates
J Neyts, ED Clercq, R Singha, YH Chang, AR Das, SK Chakraborty, ...
Journal of medicinal chemistry 52 (5), 1486-1490, 2009
2172009
Nano crystalline ZnO catalyzed one pot multicomponent reaction for an easy access of fully decorated 4H-pyran scaffolds and its rearrangement to 2-pyridone nucleus in aqueous media
P Bhattacharyya, K Pradhan, S Paul, AR Das
Tetrahedron Letters 53 (35), 4687-4691, 2012
1352012
One-pot synthesis of dihydropyrano [2, 3-c] chromenes via a three component coupling of aromatic aldehydes, malononitrile, and 3-hydroxycoumarin catalyzed by nano-structured …
S Paul, P Bhattacharyya, AR Das
Tetrahedron Letters 52 (36), 4636-4641, 2011
1312011
Nanocrystalline and Reusable ZnO Catalyst for the Assembly of Densely Functionalized 4H-Chromenes in Aqueous Medium via One-Pot Three Component …
PP Ghosh, AR Das
The Journal of Organic Chemistry 78 (12), 6170-6181, 2013
982013
Nano crystalline ZnO: a competent and reusable catalyst for one pot synthesis of novel benzylamino coumarin derivatives in aqueous media
PP Ghosh, AR Das
Tetrahedron Letters 53 (25), 3140-3143, 2012
832012
Uncapped SnO2 quantum dot catalyzed cascade assembling of four components: a rapid and green approach to the pyrano [2, 3-c] pyrazole and spiro-2-oxindole derivatives
S Paul, K Pradhan, S Ghosh, SK De, AR Das
Tetrahedron 70 (36), 6088-6099, 2014
782014
Metal ion induced toxicity and detoxification by chelation therapy
A Das
A text book on medical aspects of bio-inorganic chemistry, Isted, CBS, Delhi …, 1990
721990
Design and synthesis of benzylpyrazolyl coumarin derivatives via a four-component reaction in water: investigation of the weak interactions accumulating in the crystal …
PP Ghosh, G Pal, S Paul, AR Das
Green chemistry 14 (10), 2691-2698, 2012
712012
Light induced synthesis of symmetrical and unsymmetrical dihydropyridines in ethyl lactate–water under tunable conditions
PP Ghosh, S Paul, AR Das
Tetrahedron Letters 54 (2), 138-142, 2013
672013
Dual role of the polymer supported catalyst PEG-OSO3H in aqueous reaction medium: synthesis of highly substituted structurally diversified coumarin and uracil fused spirooxindoles
S Paul, AR Das
Tetrahedron Letters 54 (9), 1149-1154, 2013
632013
Use of zinc borohydride as an efficient and highly selective reducing agent. Selective reduction of ketones and conjugated aldehydes over conjugated enones
DC Sarkar, AR Das, BC Ranu
The Journal of Organic Chemistry 55 (22), 5799-5801, 1990
571990
Fe (DS) 3, an efficient Lewis acid-surfactant-combined catalyst (LASC) for the one pot synthesis of chromeno [4, 3-b] chromene derivatives by assembling the basic building blocks
K Pradhan, S Paul, AR Das
Tetrahedron Letters 54 (24), 3105-3110, 2013
552013
An efficient green protocol for the synthesis of coumarin fused highly decorated indenodihydropyridyl and dihydropyridyl derivatives
S Paul, AR Das
Tetrahedron Letters 53 (17), 2206-2210, 2012
552012
Synthesis of 2, 3-dihydroquinazolinones and quinazolin-4 (3 H)-ones catalyzed by graphene oxide nanosheets in an aqueous medium:“on-water” synthesis accompanied by …
N Kausar, I Roy, D Chattopadhyay, AR Das
RSC advances 6 (27), 22320-22330, 2016
532016
In situ synthesis of a reduced graphene oxide/cuprous oxide nanocomposite: a reusable catalyst
I Roy, A Bhattacharyya, G Sarkar, NR Saha, D Rana, PP Ghosh, M Palit, ...
RSC Advances 4 (94), 52044-52052, 2014
522014
Facile and efficient synthesis of homoallylic alcohols using allyl bromide and commercial zinc dust
BC Ranu, A Majee, AR Das
Tetrahedron letters 36 (27), 4885-4888, 1995
481995
Silica gel-supported zinc borohydride. 2. Regioselective 1, 2-reduction of conjugated ketones and aldehydes to the corresponding allylic alcohols
BC Ranu, AR Das
The Journal of Organic Chemistry 56 (15), 4796-4798, 1991
471991
Three-component synthesis of a polysubstituted pyrrole core containing heterocyclic scaffolds over magnetically separable nanocrystalline copper ferrite
S Paul, G Pal, AR Das
RSC advances 3 (23), 8637-8644, 2013
462013
Triton-X-100 catalyzed synthesis of 1, 4-dihydropyridines and their aromatization to pyridines and a new one pot synthesis of pyridines using visible light in aqueous media
PP Ghosh, P Mukherjee, AR Das
RSC advances 3 (22), 8220-8226, 2013
462013
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