Results 1 to 10 of about 53,960 (234)
Synthesis of tricyclic fused pyrrolidine nitroxides from 2-alkynylpyrrolidine-1-oxyls [PDF]
Beilstein Journal of Organic ChemistryRotational correlation time is a key parameter for organic radical contrast agents (ORCA) for magnetic resonance imaging (MRI). Design of polycyclic systems with incorporated nitroxide moieties in which rotation of the radical separately from the ...
Mark M. Gulman +6 more
doaj +2 more sources
(Z)-1-Benzyl-5-(4-bromophenyl)-5-hydroxy-4-(2-oxomorpholin-3-ylidene)pyrrolidine-2,3-dione
Molbank, 2023 The reaction of 8-(4-bromobenzoyl)-3,4-dihydro-1H-pyrrolo[2,1-c][1,4]oxazine-1,6,7-trione with benzylamine in acetonitrile at room temperature afforded a good yield of (Z)-1-benzyl-5-(4-bromophenyl)-5-hydroxy-4-(2-oxomorpholin-3-ylidene)pyrrolidine-2,3 ...
Nikita A. Tretyakov, Andrey N. Maslivets
doaj +1 more source
Acta Crystallographica Section E Structure Reports Online, 2012 In the title compound, C(4)H(5)NO(2), the non-H atoms are nearly coplanar, with a maximum deviation of 0.030 (1) Å. In the crystal, pairs of mol-ecules are linked by N-H⋯O hydrogen bonds into inversion dimers.
Min Yu, Xing Huang, Feng Gao
openaire +3 more sources
[(Pyrrolidin-1-yl)carbothioylsulfanyl]methyl pyrrolidine-1-carbodithioate [PDF]
Acta Crystallographica Section E Structure Reports Online, 2010 The title compound, C(11)H(18)N(2)S(4), was unexpectedly obtained during studies on the reactivity of the complex tris-(acac-κ(2)O,O')gallium(III) (acac is acetyl-acetonate) with C(4)H(8)NCS(2)H in dichloro-methane. The title compound shows disordered two pyrrolidine rings with major and minor occupancies of 0.546 (4) and 0.454 (4).
Yen-Hsiang Huang +4 more
openaire +3 more sources
Asymmetric Synthesis of Polyfunctionalized Pyrrolidines from Sulfinimine-Derived Pyrrolidine 2-Phosphonates. Synthesis of Pyrrolidine 225C [PDF]
Organic Letters, 2006 [reaction: see text] The Horner-Wadsworth-Emmons reaction of aldehydes with sulfinimine-derived 3-oxo pyrrolidine phosphonates represents a new method for the asymmetric synthesis of ring-functionalized cis-2,5-disubstituted 3-oxo pyrrolidines.
Franklin A, Davis +3 more
openaire +2 more sources
Acta Crystallographica Section E, 2014 The title compound, C34H38ClN5O2, has spiro links connecting the pyrrolidine ring and indole residue, as well as the piperidine and pyrrolidine rings.
I. S. Ahmed Farag +4 more
doaj +1 more source
Beyond the Simple Copper(II) Coordination Chemistry with Quinaldinate and Secondary Amines
Molecules, 2020 Copper(II) acetate has reacted in methanol with quinaldinic acid (quinoline-2-carboxylic acid) to form [Cu(quin)2(CH3OH)]∙CH3OH (1) (quin− = an anionic form of the acid) with quinaldinates bound in a bidentate chelating manner.
Barbara Modec, Nina Podjed, Nina Lah
doaj +1 more source
Acta Crystallographica Section E, 2014 The title compound, C30H28ClN3O2, features two spiro links, one connecting the piperidine and pyrrolidine rings, and the other connecting the pyrrolidine ring and indole residue. The configuration about the ethene bond is E.
I. S. Ahmed Farag +4 more
doaj +1 more source
1-(Pyrrolidin-1-yl)ethan-1-iminium chloride
IUCrData, 2023 The title compound, C6H13N2+·Cl−, is as an amidinium salt that was isolated as unexpected product from the reaction between acetonitrile, chloroform and pyrrolidine under refluxing conditions.
Rylan Artis +2 more
doaj +1 more source
One-Pot Route from Halogenated Amides to Piperidines and Pyrrolidines
Molecules, 2022 Piperidine and pyrrolidine derivatives are important nitrogen heterocyclic structures with a wide range of biological activities. However, reported methods for their construction often face problems of requiring the use of expensive metal catalysts ...
Qiao Song +5 more
doaj +1 more source