Search Results - "Vivek Kumar, Sundaravel"
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1
Proline and its Derivatives as Organocatalysts for Multi‐ Component Reactions in Aqueous Media: Synergic Pathways to the Green Synthesis of Heterocycles
Published in Advanced synthesis & catalysis (07-01-2020)“…Proline is a non‐toxic and inexpensive natural amino acid that is readily available in both enantiomeric forms and was one of the very first compounds to be…”
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2
Site-Selective Rh-Catalyzed C‑7 and C‑6 Dual C–H Functionalization of Indolines: Synthesis of Functionalized Pyrrolocarbazoles
Published in Journal of organic chemistry (21-02-2020)“…A site-selective dual C-7 and C-6 C–H functionalization of indolines with azabenzonorbornadienes has been accomplished using Rh-catalysis. The reaction affords…”
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3
A facile solvent-free three-component domino synthesis of novel 2,4-diaryl-5,6-dihydrobenzo[j][1,7]phenanthrolines
Published in Molecular diversity (01-02-2019)“…A simple, efficient and green procedure for the synthesis of novel 2,4-diaryl-5,6-dihydrobenzo[ j ][1,7]phenanthrolines has been developed via a Krohnke-type…”
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4
Facile four-component domino reactions for the synthesis of 2,6-diaryl-4-(1H-indol-3-yl)-3-cyanopyridines
Published in Tetrahedron letters (01-10-2014)“…A series of novel 2,6-diaryl-4-(1H-indol-3-yl)-3-cyanopyridines was obtained in good yields from the domino reactions of 3-(1H-indol-3-yl)-3-oxopropanenitrile,…”
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5
Catalytic Enantioselective [3+2] Cycloaddition of N‐Metalated Azomethine Ylides
Published in Chemistry : a European journal (16-05-2023)“…Asymmetric [3+2] cycloaddition reactions are fascinating and powerful methods for the synthesis of enantioenriched pyrrolidines up to four stereocentres…”
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6
An efficient synthesis of N-substituted 3-nitrothiophen-2-amines
Published in Beilstein journal of organic chemistry (22-09-2015)“…A novel protocol for the synthesis of 3-nitro-N-aryl/alkylthiophen-2-amines in good yields from the reaction of α-nitroketene N,S-aryl/alkylaminoacetals and…”
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7
Enantioselective Organozinc Addition to Aldehydes Using Planar Chiral [2.2]Paracyclophane-Imidazoline N,O-ligands
Published in Chemistry : a European journal (11-11-2024)“…We present an improved and convenient synthesis of [2.2]paracyclophane-imidazoline N,O-ligands with central and planar chirality in seven steps starting from…”
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8
Zinc‐Catalyzed Enantioselective [3+2] Cycloaddition of Azomethine Ylides Using Planar Chiral [2.2]Paracyclophane‐Imidazoline N,O‐ligands
Published in Angewandte Chemie International Edition (15-08-2022)“…We present a facile synthetic route toward a novel series of imidazolinyl‐[2.2]paracyclophanol (UCD‐Imphanol) ligands possessing central and planar chirality…”
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Frontispiece: Catalytic Enantioselective [3+2] Cycloaddition of N‐Metalated Azomethine Ylides
Published in Chemistry : a European journal (16-05-2023)“…Pyrrolidines are intriguing scaffolds that can be found in a variety of natural products. They have numerous biological and organocatalytic uses. The…”
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10
Regiospecific Bi‐Catalysed Domino C‐N/C‐S Bonds Formation: Synthesis of 1,4‐Thiazines/1,4‐Thiomorpholines
Published in Advanced synthesis & catalysis (17-08-2018)“…A domino Bi‐catalysed C−N/C−S bond formation of N‐sulfonylaziridines is developed with 1,4‐dithiane‐2,5‐diol to give 3,4‐dihydro‐1,4‐thiazines at room…”
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11
Domino reactions in water for the stereoselective synthesis of novel spiro dihydro-2′H-[indene-2,3′-thiophen]-1(3H)-ones with three contiguous stereocenters
Published in Tetrahedron letters (27-11-2013)“…The domino reactions of (E)-2-(aryl)-2,3-dihydro-1H-inden-1-ones and 1,4-dithiane-2,5-diol in the presence of triethylamine in water stereoselectively afforded…”
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12
One-pot microwave assisted stereoselective synthesis of novel dihydro-2′H-spiro[indene-2,1′-pyrrolo-[3,4-c]pyrrole]-tetraones and evaluation of their antimycobacterial activity and inhibition of AChE
Published in Bioorganic & medicinal chemistry letters (15-07-2017)“…[Display omitted] An efficient one-pot microwave assisted stereoselective synthesis of novel dihydro-2′H-spiro[indene-2,1′-pyrrolo[3,4-c]pyrrole]-tetraone…”
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13
Novel domino reactions for the efficient synthesis of 5,6-dihydro-1,4,2-oxathiazines
Published in Tetrahedron letters (09-07-2014)“…[Display omitted] A facile efficient synthesis of novel 3-aryl-5,6-dihydro-1,4,2-oxathiazin-6-ols from the reaction of (E)-N-hydroxyarylimidoyl chlorides and…”
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14
Stereospecific Al‐Catalysed Tandem C−N/C−Se Bond Formation of Isoselenocyanates with Aziridines: Synthesis and DFT Study
Published in Advanced synthesis & catalysis (11-01-2019)“…Al‐catalyzed stereospecific tandem C−N/C−Se bond formation of chiral aziridines with isoselenocyanates is described with 90–99% ee and 77–91% yields. The…”
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15
A facile stereoselective synthesis of dispiro-indeno pyrrolidine/pyrrolothiazole-thiochroman hybrids and evaluation of their antimycobacterial, anticancer and AchE inhibitory activities
Published in Bioorganic & medicinal chemistry (15-11-2016)“…A facile stereoselective synthesis of novel dispiro indeno pyrrolidine/pyrrolothiazole-thiochroman hybrids has been achieved by 1,3-dipolar cycloaddition of…”
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16
BINOL accelerated Ru(II)-catalyzed regioselective C-H functionalization of arenes with disulfides and diselenides
Published in Journal of chemical sciences (Bangalore, India) (01-12-2019)“…A BINOL accelerated Ru-catalyzed ortho -selective C-H coupling of arenes tethered to 7-azaindoles is described with disulfides and diselenides under air. The…”
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17
A one-pot access to pyridine/benzo fused cyclododecanes via multi-component tandem reactions
Published in Tetrahedron (30-08-2018)“…A facile syntheses of novel poly-substituted pyridine/benzo fused cyclododecane hybrid heterocycles have been achieved through one-pot multi-component tandem…”
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18
Zinc‐Catalyzed Enantioselective [3+2] Cycloaddition of Azomethine Ylides Using Planar Chiral [2.2]Paracyclophane‐Imidazoline N,O‐ligands
Published in Angewandte Chemie (15-08-2022)“…We present a facile synthetic route toward a novel series of imidazolinyl‐[2.2]paracyclophanol (UCD‐Imphanol) ligands possessing central and planar chirality…”
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19
A One-Pot Multicomponent 1,3-Dipolar Cycloaddition Strategy: Combinatorial Synthesis of Dihydrothiophenone-Engrafted Dispiro Hybrid Heterocycles
Published in ACS combinatorial science (08-05-2017)“…The combinatorial syntheses of a library of novel dihydrothiophenone-engrafted dispiro oxindole/indenoquinoxaline–pyrrolidine/pyrrolothiazole/indolizine hybrid…”
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20
Thiazole‐tethered biaryls as fluorescent chemosensors for the selective detection of Fe3+ ions
Published in Journal of heterocyclic chemistry (01-11-2020)“…3‐Amino‐5‐(thiazol‐2‐yl)‐[1,1′‐biaryl]‐2,4‐dicarbonitriles have been synthesized employing a facile one‐pot pseudo four‐component domino strategy. All these…”
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