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Chaoguo Yan - One of the best experts on this subject based on the ideXlab platform.
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selective synthesis of functionalized spiro indoline 3 2 pyridines and spiro indoline 3 4 pyridines by lewis acid catalyzed reactions of Acetylenedicarboxylate arylamines and isatins
Journal of Organic Chemistry, 2014Co-Authors: Hong Gao, Jing Sun, Chaoguo YanAbstract:The functionalized spiro[indoline-3,2′-pyridine]-3′,4′,5′,6′-tetracarboxylates were efficiently synthesized by BF3·OEt2-catalyzed reactions of isatin-3-imines with Acetylenedicarboxylates in methylene dichloride. Under similar conditions, the BF3·OEt2-catalyzed three-component reactions of Acetylenedicarboxylates, arylamines, and isatins afforded functionalized spiro[indoline-3,4′-pyridine]-2′,3′,5′,6′-tetracarboxylates in moderate yields.
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Selective Synthesis of Functionalized Spiro[indoline-3,2′-pyridines] and Spiro[indoline-3,4′-pyridines] by Lewis Acid Catalyzed Reactions of Acetylenedicarboxylate, Arylamines, and Isatins
The Journal of organic chemistry, 2014Co-Authors: Hong Gao, Jing Sun, Chaoguo YanAbstract:The functionalized spiro[indoline-3,2′-pyridine]-3′,4′,5′,6′-tetracarboxylates were efficiently synthesized by BF3·OEt2-catalyzed reactions of isatin-3-imines with Acetylenedicarboxylates in methylene dichloride. Under similar conditions, the BF3·OEt2-catalyzed three-component reactions of Acetylenedicarboxylates, arylamines, and isatins afforded functionalized spiro[indoline-3,4′-pyridine]-2′,3′,5′,6′-tetracarboxylates in moderate yields.
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synthesis of functionalized 2 pyrrolidinones via domino reactions of arylamines ethyl glyoxylate and Acetylenedicarboxylates
ChemInform, 2013Co-Authors: Hong Gao, Jing Sun, Chaoguo YanAbstract:Diethyl Acetylenedicarboxylate can be used as starting material giving similar results as dimethyl Acetylenedicarboxylate.
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synthesis of functionalized 2 pyrrolidinones via domino reactions of arylamines ethyl glyoxylate and Acetylenedicarboxylates
Tetrahedron, 2013Co-Authors: Hong Gao, Jing Sun, Chaoguo YanAbstract:An efficient and practical synthetic method for the functionalized 2-pyrrolidinones was successfully developed via the domino reactions of ethyl glyoxylate and Acetylenedicarboxylate with 2 M arylamines in the presence of benzoic acid as catalyst. When two kinds of amines were used in the reaction, the stronger nucleophilic aliphatic amine preferentially added to Acetylenedicarboxylate to form the reactive intermediate β-enamino ester and the reaction showed high regioselectivity.
Vijay Nair - One of the best experts on this subject based on the ideXlab platform.
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construction of heterocycles via 1 4 dipolar cycloaddition of quinoline dmad zwitterion with various dipolarophiles
Tetrahedron, 2008Co-Authors: Vijay Nair, S Devipriya, Eringathodi SureshAbstract:Quinoline forms 1,4-zwitterion with dimethyl Acetylenedicarboxylate, which is trapped by various dipolarophiles to yield a variety of pyridoquinoline and oxazinoquinoline derivatives.
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a novel three component reaction involving quinoline dimethyl acetylene dicarboxylate and c h acids leading to the synthesis of pyrroloquinoline derivatives
Synthesis, 2008Co-Authors: Vijay Nair, S Devipriya, Eringathodi SureshAbstract:The zwitterion derived from quinoline and dimethyl Acetylenedicarboxylate on reaction with C-H acids afforded pyrroloquinoline derivatives.
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a novel reaction of vicinal tricarbonyl compounds with the isocyanide dmad zwitterion formation of highly substituted furan derivatives
Tetrahedron Letters, 2006Co-Authors: Vijay Nair, Ani DeepthiAbstract:The vicinal tricarbonyl system participates in a novel reaction with the zwitterion derived from isocyanide and dimethyl Acetylenedicarboxylate to form fully substituted furan derivatives.
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engaging the pyridine dmad zwitterion in a novel strategy for the selective synthesis of highly substituted benzene and cyclopentenedione derivatives
Organic Letters, 2005Co-Authors: Vijay Nair, Abhilash N Pillai, P B Beneesh, Eringathodi SureshAbstract:The pyridine-mediated reaction of dimethyl Acetylenedicarboxylate and cyclobutene-1,2-diones affords selective access to either hexasubstituted benzene derivatives or cyclopentenedione derivatives depending on the concentration of pyridine.
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one pot four component reaction of isocyanides dimethyl Acetylenedicarboxylate and cyclobutene 1 2 diones a synthesis of novel spiroheterocycles
Tetrahedron Letters, 2005Co-Authors: Vijay Nair, Ani Deepthi, Rajeev S Menon, Rema B Devi, Akkattu T BijuAbstract:Isocyanides, dimethyl Acetylenedicarboxylate, and cyclobutene-1,2-diones react in one-pot to afford novel spirocyclic compounds with double insertion of the isocyanide.
Hong Gao - One of the best experts on this subject based on the ideXlab platform.
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selective synthesis of functionalized spiro indoline 3 2 pyridines and spiro indoline 3 4 pyridines by lewis acid catalyzed reactions of Acetylenedicarboxylate arylamines and isatins
Journal of Organic Chemistry, 2014Co-Authors: Hong Gao, Jing Sun, Chaoguo YanAbstract:The functionalized spiro[indoline-3,2′-pyridine]-3′,4′,5′,6′-tetracarboxylates were efficiently synthesized by BF3·OEt2-catalyzed reactions of isatin-3-imines with Acetylenedicarboxylates in methylene dichloride. Under similar conditions, the BF3·OEt2-catalyzed three-component reactions of Acetylenedicarboxylates, arylamines, and isatins afforded functionalized spiro[indoline-3,4′-pyridine]-2′,3′,5′,6′-tetracarboxylates in moderate yields.
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Selective Synthesis of Functionalized Spiro[indoline-3,2′-pyridines] and Spiro[indoline-3,4′-pyridines] by Lewis Acid Catalyzed Reactions of Acetylenedicarboxylate, Arylamines, and Isatins
The Journal of organic chemistry, 2014Co-Authors: Hong Gao, Jing Sun, Chaoguo YanAbstract:The functionalized spiro[indoline-3,2′-pyridine]-3′,4′,5′,6′-tetracarboxylates were efficiently synthesized by BF3·OEt2-catalyzed reactions of isatin-3-imines with Acetylenedicarboxylates in methylene dichloride. Under similar conditions, the BF3·OEt2-catalyzed three-component reactions of Acetylenedicarboxylates, arylamines, and isatins afforded functionalized spiro[indoline-3,4′-pyridine]-2′,3′,5′,6′-tetracarboxylates in moderate yields.
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synthesis of functionalized 2 pyrrolidinones via domino reactions of arylamines ethyl glyoxylate and Acetylenedicarboxylates
ChemInform, 2013Co-Authors: Hong Gao, Jing Sun, Chaoguo YanAbstract:Diethyl Acetylenedicarboxylate can be used as starting material giving similar results as dimethyl Acetylenedicarboxylate.
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synthesis of functionalized 2 pyrrolidinones via domino reactions of arylamines ethyl glyoxylate and Acetylenedicarboxylates
Tetrahedron, 2013Co-Authors: Hong Gao, Jing Sun, Chaoguo YanAbstract:An efficient and practical synthetic method for the functionalized 2-pyrrolidinones was successfully developed via the domino reactions of ethyl glyoxylate and Acetylenedicarboxylate with 2 M arylamines in the presence of benzoic acid as catalyst. When two kinds of amines were used in the reaction, the stronger nucleophilic aliphatic amine preferentially added to Acetylenedicarboxylate to form the reactive intermediate β-enamino ester and the reaction showed high regioselectivity.
Jing Sun - One of the best experts on this subject based on the ideXlab platform.
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selective synthesis of functionalized spiro indoline 3 2 pyridines and spiro indoline 3 4 pyridines by lewis acid catalyzed reactions of Acetylenedicarboxylate arylamines and isatins
Journal of Organic Chemistry, 2014Co-Authors: Hong Gao, Jing Sun, Chaoguo YanAbstract:The functionalized spiro[indoline-3,2′-pyridine]-3′,4′,5′,6′-tetracarboxylates were efficiently synthesized by BF3·OEt2-catalyzed reactions of isatin-3-imines with Acetylenedicarboxylates in methylene dichloride. Under similar conditions, the BF3·OEt2-catalyzed three-component reactions of Acetylenedicarboxylates, arylamines, and isatins afforded functionalized spiro[indoline-3,4′-pyridine]-2′,3′,5′,6′-tetracarboxylates in moderate yields.
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Selective Synthesis of Functionalized Spiro[indoline-3,2′-pyridines] and Spiro[indoline-3,4′-pyridines] by Lewis Acid Catalyzed Reactions of Acetylenedicarboxylate, Arylamines, and Isatins
The Journal of organic chemistry, 2014Co-Authors: Hong Gao, Jing Sun, Chaoguo YanAbstract:The functionalized spiro[indoline-3,2′-pyridine]-3′,4′,5′,6′-tetracarboxylates were efficiently synthesized by BF3·OEt2-catalyzed reactions of isatin-3-imines with Acetylenedicarboxylates in methylene dichloride. Under similar conditions, the BF3·OEt2-catalyzed three-component reactions of Acetylenedicarboxylates, arylamines, and isatins afforded functionalized spiro[indoline-3,4′-pyridine]-2′,3′,5′,6′-tetracarboxylates in moderate yields.
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synthesis of functionalized 2 pyrrolidinones via domino reactions of arylamines ethyl glyoxylate and Acetylenedicarboxylates
ChemInform, 2013Co-Authors: Hong Gao, Jing Sun, Chaoguo YanAbstract:Diethyl Acetylenedicarboxylate can be used as starting material giving similar results as dimethyl Acetylenedicarboxylate.
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synthesis of functionalized 2 pyrrolidinones via domino reactions of arylamines ethyl glyoxylate and Acetylenedicarboxylates
Tetrahedron, 2013Co-Authors: Hong Gao, Jing Sun, Chaoguo YanAbstract:An efficient and practical synthetic method for the functionalized 2-pyrrolidinones was successfully developed via the domino reactions of ethyl glyoxylate and Acetylenedicarboxylate with 2 M arylamines in the presence of benzoic acid as catalyst. When two kinds of amines were used in the reaction, the stronger nucleophilic aliphatic amine preferentially added to Acetylenedicarboxylate to form the reactive intermediate β-enamino ester and the reaction showed high regioselectivity.
Michael B. Hursthouse - One of the best experts on this subject based on the ideXlab platform.
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Intramolecular Wittig reactions with lactones utilising triphenylphosphine and dimethyl Acetylenedicarboxylate
Tetrahedron Letters, 1999Co-Authors: Laura Heys, Patrick J. Murphy, Simon J. Coles, Thomas Gelbrich, Michael B. HursthouseAbstract:Abstract The intramolecular Wittig olefination of γ-butyrolactones has been effected in high yield using a combination of triphenylphosphine and dimethyl Acetylenedicarboxylate.
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A remarkable rearrangement during reaction between triazolopyridinium ylides and dimethyl Acetylenedicarboxylate
Tetrahedron Letters, 1991Co-Authors: Belén Abarca, Rafael Ballesteros, M. R. Metni, Gurnos Jones, D. J. Ando, Michael B. HursthouseAbstract:Abstract The ylides from 2-acylmethyltriazolopyridinium salts ( 1 ) react with dimethyl Acetylenedicarboxylate in toluene solution to give the 7-pyrroleninylpyrazolo[1,5-a]pyridines ( 5 ).