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A. N. Yankin - One of the best experts on this subject based on the ideXlab platform.
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Synthesis of5-Aryl(heteryl)-1-hydroxyethyl-4-(furyl-2-carbonyl)-3-hydroxy-3-Pyrroline-2-ones
Russian Journal of General Chemistry, 2020Co-Authors: V. L. Gein, D. D. Rubtsova, A. A. Bobyleva, A. N. YankinAbstract:5-Aryl(heteryl)-1-hydroxyethyl-4-(furyl-2-carbonyl)-3-hydroxy-3-Pyrroline-2-ones were synthesized via reactions of methyl ester of furyl-2-carbonylpyruvic acid with a mixture of aromatic or heterocyclic aldehyde and ethanolamine in dioxane. Antibacterial and antifungal activities of the synthesized compounds was studied.
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Synthesis of 5-Aryl(heteryl)-1-hydroxyethyl-4-(furyl-2-carbonyl)-3-hydroxy-3-Pyrroline-2-ones
Russian Journal of General Chemistry, 2020Co-Authors: V. L. Gein, D. D. Rubtsova, A. A. Bobyleva, A. N. YankinAbstract:5-Aryl(heteryl)-1-hydroxyethyl-4-(furyl-2-carbonyl)-3-hydroxy-3-Pyrroline-2-ones were synthesized via reactions of methyl ester of furyl-2-carbonylpyruvic acid with a mixture of aromatic or heterocyclic aldehyde and ethanolamine in dioxane. Antibacterial and antifungal activities of the synthesized compounds was studied.
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Synthesis and Bioactivity of 5-Aryl-4-acyl-3-hydroxy-1-[2-(imidazolyl-3-yl)ethyl]3-Pyrroline-2-ones
Russian Journal of General Chemistry, 2020Co-Authors: V. L. Gein, N. N. Kasimova, S. V. Chaschina, A. V. Starkova, A. N. YankinAbstract:5-Aryl-4-acyl-3-hydroxy-1-[2-(imidazolyl-3-yl)ethyl]-3-Pyrroline-2-ones were synthesized by three-component reaction of methyl dioxobutanoates with aromatic aldehydes and histamine dihydrochloride. Analgesic activity and hemostatic action of some compounds obtained was investigated.
V. L. Gein - One of the best experts on this subject based on the ideXlab platform.
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Synthesis of5-Aryl(heteryl)-1-hydroxyethyl-4-(furyl-2-carbonyl)-3-hydroxy-3-Pyrroline-2-ones
Russian Journal of General Chemistry, 2020Co-Authors: V. L. Gein, D. D. Rubtsova, A. A. Bobyleva, A. N. YankinAbstract:5-Aryl(heteryl)-1-hydroxyethyl-4-(furyl-2-carbonyl)-3-hydroxy-3-Pyrroline-2-ones were synthesized via reactions of methyl ester of furyl-2-carbonylpyruvic acid with a mixture of aromatic or heterocyclic aldehyde and ethanolamine in dioxane. Antibacterial and antifungal activities of the synthesized compounds was studied.
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Synthesis of 5-Aryl(heteryl)-1-hydroxyethyl-4-(furyl-2-carbonyl)-3-hydroxy-3-Pyrroline-2-ones
Russian Journal of General Chemistry, 2020Co-Authors: V. L. Gein, D. D. Rubtsova, A. A. Bobyleva, A. N. YankinAbstract:5-Aryl(heteryl)-1-hydroxyethyl-4-(furyl-2-carbonyl)-3-hydroxy-3-Pyrroline-2-ones were synthesized via reactions of methyl ester of furyl-2-carbonylpyruvic acid with a mixture of aromatic or heterocyclic aldehyde and ethanolamine in dioxane. Antibacterial and antifungal activities of the synthesized compounds was studied.
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Synthesis of 4-Acyl-5-aryl-3-hydroxy-1-(3-picolyl)-3-Pyrroline-2-ones
Russian Journal of General Chemistry, 2020Co-Authors: V. L. Gein, N. V. Nosova, A. A. Cherepanov, L. F. Gein, K. D. Il’inaAbstract:Reaction of methyl esters of acylpyruvic acids with a mixture of aromatic aldehyde and 3-picolylamine gave 5-aryl-4-acyl-3-hydroxy-1-(3-picolyl)-3-Pyrroline-2-ones, the structure of which was confirmed on the basis of ^1H NMR, ^13C NMR, IR spectroscopy.
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Synthesis and Bioactivity of 5-Aryl-4-acyl-3-hydroxy-1-[2-(imidazolyl-3-yl)ethyl]3-Pyrroline-2-ones
Russian Journal of General Chemistry, 2020Co-Authors: V. L. Gein, N. N. Kasimova, S. V. Chaschina, A. V. Starkova, A. N. YankinAbstract:5-Aryl-4-acyl-3-hydroxy-1-[2-(imidazolyl-3-yl)ethyl]-3-Pyrroline-2-ones were synthesized by three-component reaction of methyl dioxobutanoates with aromatic aldehydes and histamine dihydrochloride. Analgesic activity and hemostatic action of some compounds obtained was investigated.
Jan W. Bats - One of the best experts on this subject based on the ideXlab platform.
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4,4',4''-(Methane-triyl)triphenyl tris-(2,2,5,5-tetra-methyl-1-oxyl-3-Pyrroline-3-carboxyl-ate) benzene tris-olvate.
Acta Crystallographica Section E Structure Reports Online, 2010Co-Authors: Denise Schuetz, Dominik Margraf, Thomas F. Prisner, Jan W. BatsAbstract:In the asymmetric unit of the title compound, C46H52N3O9·3C6H6, two of the benzene solvent molecules are located in general positions and two are disposed about inversion centers. One of the benzene molecules on an inversion center was grossly disordered and was excluded using the SQUEEZE subroutine in PLATON [Spek (2009). Acta Cryst. D65, 148–155]. In addition, one of the 2,2,5,5-tetramethyl-1-oxyl-3-pyrrolin-3-ylcarbonyl groups is disordered over two orientations with refined occupancies of 0.506 (2) and 0.494 (2). The 1-oxyl-3-Pyrroline-3-carboxylate groups are essentially planar, with mean deviations from the planes of 0.026 (2), 0.012 (2), 0.034 (4) and 0.011 (4) A. In the crystal structure, molecules are connected by five weak intermolecular C—H⋯O and four weak intermolecular C—H⋯π(benzene) interactions.
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Biphenyl-4,4'-diyl bis-(2,2,5,5-tetra-methyl-1-oxyl-3-Pyrroline-3-carboxyl-ate).
Acta Crystallographica Section E Structure Reports Online, 2009Co-Authors: Dominik Margraf, Denise Schuetz, Thomas F. Prisner, Jan W. BatsAbstract:In the title compound, C30H34N2O6, the complete molecule is generated by a crystallographic 2/m symmetry operation. The 1-oxyl-3-Pyrroline-3-carboxylate group lies on a mirror plane. The dihedral angle between the ring planes of the biphenyl fragment is constrained by symmetry to be zero, resulting in rather short intramolecular H⋯H contact distances of 2.02 A. In the crystal, molecules are connected along the a-axis direction by very weak intermolecular methyl–phenyl C—H⋯π interactions. The C—H bond is not directed to the center of the benzene ring, but mainly to one C atom [C—H⋯C(x − 1, y, z): H⋯C = 2.91 A and C—H⋯C = 143°].
Xiaofeng Tong - One of the best experts on this subject based on the ideXlab platform.
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Synthesis of 3‐Pyrroline via Domino Heck‐Aza‐Michael Reaction.
ChemInform, 2012Co-Authors: Hui Liu, Xiaofeng TongAbstract:The Pd-catalyzed Heck-aza-Michael domino reaction of (Z)-3-iodoprop-2-en-1-amine derivatives (I) and acrylic esters (II) provides a convenient route to a variety of substituted 3-Pyrrolines (III).
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Synthesis of 3-Pyrroline via domino Heck–aza-Michael reaction
Tetrahedron Letters, 2012Co-Authors: Hui Liu, Xiaofeng TongAbstract:Abstract This Letter describes the Pd(0)-catalyzed domino Heck–aza-Michael reaction between (Z)-N-(3-iodoallyl)-tosylamide and acrylic ester. The reaction provides a facile access to an important class of substituted 3-Pyrroline.
Zhengjie He - One of the best experts on this subject based on the ideXlab platform.
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nucleophilic phosphine catalyzed 3 2 cycloaddition of allenes with n thio phosphoryl imines and acidic methanolysis of adducts n thio phosphoryl 3 pyrrolines a facile synthesis of free amine 3 pyrrolines
Tetrahedron, 2008Co-Authors: Bo Zhang, Zhengrong He, Silong Xu, Guiping Wu, Zhengjie HeAbstract:Abstract In this report, the dipolarophile imines with easily removable activating group O,O-diethyl(thio)phosphoryl have been investigated in the nucleophilic phosphine-catalyzed [3+2] cycloaddition reaction of electron-deficient allenes. Under the catalysis of a tertiary phosphine, N-(thio)phosphorylimines readily undergo the [3+2] cycloaddition reaction with ethyl 2,3-butadienoate or ethyl 2,3-pentadienoate, affording the corresponding N-(thio)phosphoryl 3-Pyrrolines in moderate to high yields with good diastereoselectivity. Removal of the (thio)phosphoryl group from the adducts has been successfully achieved via the acidic methanolysis of the P–N bond, giving the free amine 3-Pyrrolines in fair to good yields without severe aromatization. Thus, a facile synthesis of N-unsubstituted 3-Pyrrolines is established from the phosphine-catalyzed [3+2] cycloaddition reaction of allenes with imines.
