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Dual Role of Pyrrolidine and Cooperative Pyrrolidine/Pyrrolidinium Effect in Nitrone Formation
ACS Catalysis, 2015The formation of nitrones by direct condensation between equimolecular amounts of N-substituted hydroxylamine hydrochlorides and aromatic or aliphatic aldehydes is efficiently promoted by pyrrolidine in a matter of minutes under very mild conditions in almost quantitative yields after a simple filtration through a short pad of silica gel.
Fernando G. Guijarro +4 more
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Pulse Radiolysis of Pyrrolidine
Radiation Research, 1970The formation, decay, and absorption spectra of transients formed from pyrrolidine in aqueous solutions were studied. The solvated electron ( ${\rm e}_{{\rm aq}}^{-}$) reacts with the protonated and the nonprotonated pyrrolidine forming the ${\rm C}_{4}{\rm H}_{8}{\rm N}$· radical. The rate constants are: $k({\rm e}_{{\rm aq}}^{-}+{\rm C}_{4}{\rm H}_{8}
N. Getoff, F. Schwörer, F. Schworer
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Synthesis of Fluoropyrrolidines and (Fluoroalkyl)pyrrolidines [PDF]
Synthesis, 2017 Pyrrolidines and their derivatives are of great interest in medicinal chemistry and organic synthesis. Fluoropyrrolidines and (fluoroalkyl)pyrrolidines have been utilized in the preparation of medicinal drugs and also as organocatalysts. The synthesis of such compounds is achieved through the fluorination of pyrrolidine derivatives or by multistep ...
Lequeux, Thierry, Pfund, Emmanuel
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ACS Catalysis, 2019
Asymmetric catalysis is a rapidly evolving field in synthetic chemistry. This is due to the growing needs of stereoselective synthetic routes to access enantiopure natural products and bioactive molecules.
Alberto Vega‐Peñaloza +4 more
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Asymmetric catalysis is a rapidly evolving field in synthetic chemistry. This is due to the growing needs of stereoselective synthetic routes to access enantiopure natural products and bioactive molecules.
Alberto Vega‐Peñaloza +4 more
semanticscholar +1 more source
Organic Process Research & Development, 2019
The tetrasubstituted pyrrolidine core of ABBV-3221 was synthesized by catalytic, enantioselective cycloaddition. A Cu(I) catalyst system was identified as ideal for further development, which gave a 78% yield of 99% purity product after optimization. The
J. Hartung +3 more
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The tetrasubstituted pyrrolidine core of ABBV-3221 was synthesized by catalytic, enantioselective cycloaddition. A Cu(I) catalyst system was identified as ideal for further development, which gave a 78% yield of 99% purity product after optimization. The
J. Hartung +3 more
semanticscholar +1 more source
Journal of Organic Chemistry, 2018
Squaramide-catalyzed asymmetric domino Michael/Mannich [3 + 2] cycloaddition reaction between rhodanine derivatives and N-(2,2,2-trifluoroethyl)isatin ketimines has been developed to synthesize various bispiro[oxindole-pyrrolidine-rhodanine]s with good ...
Yong-Xing Song, D. Du
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Squaramide-catalyzed asymmetric domino Michael/Mannich [3 + 2] cycloaddition reaction between rhodanine derivatives and N-(2,2,2-trifluoroethyl)isatin ketimines has been developed to synthesize various bispiro[oxindole-pyrrolidine-rhodanine]s with good ...
Yong-Xing Song, D. Du
semanticscholar +1 more source
ChemInform, 1993
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Mahboobi, Siavosh +3 more
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AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Mahboobi, Siavosh +3 more
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Diastereoselective Preparation of Azetidines and Pyrrolidines [PDF]
Organic Letters, 2010 Iodine-mediated cyclization of homoallyl amines at room temperature delivered cis-2,4-azetidine through a 4-exo trig cyclization. Isomerization of iodo-azetidines to cis-pyrrolidines could be achieved by heating, with complete stereocontrol. The relative stereochemistry of the iodo-azetidines and pyrrolidines was confirmed by NMR spectroscopy and X-ray
John S. Fossey +2 more
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