Results 11 to 20 of about 33,483 (272)

1-(Pyrrolidin-1-yl)ethan-1-iminium chloride

open access: yesIUCrData, 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

open access: yesMolecules, 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

Pyrrolidine nucleotide analogs with a tunable conformation

open access: yesBeilstein Journal of Organic Chemistry, 2014
Conformational preferences of the pyrrolidine ring in nucleotide analogs 7–14 were investigated by means of NMR and molecular modeling. The effect of the relative configuration of hydroxy and nucleobase substituents as well as the effect of the ...
Lenka Poštová Slavětínská   +2 more
doaj   +1 more source

1-[6-Chloro-2-(phenanthren-9-yl)quinolin-4-yl]pyrrolidin-2-one

open access: yesIUCrData, 2016
In the title compound, C27H19ClN2O, the quinoline system is planar, with a maximum deviation from the mean plane of 0.003 Å for the N atom. This ring makes dihedral angles of 56.64 (5) and 49.26 (2)° with phenanthrene and pyrrolidine rings, respectively.
Rajamani Raja   +4 more
doaj   +1 more source

Crystal structure of ethyl 1′,1′′-dimethyl-2′′,3-dioxo-3H-dispiro[benzo[b]thiophene-2,3′-pyrrolidine-2′,3′′-indoline]-4′-carboxylate

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
In the title compound, C23H22N2O4S, the pyrrolidine ring has an envelope conformation with the spiro C atom, shared with the indoline ring system, as the flap. The mean planes of the benzothiophene and indoline ring systems are inclined to the mean plane
M. P. Savithri   +4 more
doaj   +1 more source

A Photocatalytic Method for the Degradation of Pyrrolidine in Water [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2000
A method for the degradation of pyrrolidine in water is described. The method relaies on the photocatalytic degradation of pyrrolidine to CO2 and NH3 by UV irradiation and using titanium dixide semiconductor as a photocatalyst.
Mohammad Hossein Habibi   +1 more
doaj  

Alkaloids of the Genus Datura: Review of a Rich Resource for Natural Product Discovery

open access: yesMolecules, 2021
The genus Datura (Solanaceae) contains nine species of medicinal plants that have held both curative utility and cultural significance throughout history.
Maris A. Cinelli, A. Daniel Jones
doaj   +1 more source

Iridium‐Catalyzed Ionic Hydrogenation of Multi‐Aza Heterocycles

open access: yesAngewandte Chemie, EarlyView.
Saturated nitrogen‐containing heterocycles are ubiquitous in bioactive molecules and are thus attractive synthetic targets. A readily accessible cyclometalated iridium(III) complex reduces 14 different aromatic aza heterocycles to (partially)saturated multi aza‐heterocycles enlarging accessible chemical space while displaying high tolerance toward ...
Arthur Despois, Nicolai Cramer
wiley   +2 more sources

Enantioselective synthesis of tricyclic amino acid derivatives based on a rigid 4-azatricyclo[5.2.1.02,6]decane skeleton

open access: yesBeilstein Journal of Organic Chemistry, 2009
An enantioselective route to four tricyclic amino acids and N-tosylamides, composed of a central norbornane framework with a 2-endo,3-endo-annelated pyrrolidine ring and a 5-endo-C1 or -C2 side chain, has been developed. A key intermediate was the chiral,
Matthias Breuning   +6 more
doaj   +1 more source

N-Sulfinylpyrrolidine-containing ureas and thioureas as bifunctional organocatalysts

open access: yesBeilstein Journal of Organic Chemistry, 2021
The synthesis of bifunctional N-sulfinylureas and thioureas with an appended pyrrolidine unit is presented. These organocatalysts were evaluated in Michael additions of aldehydes to nitroalkenes both under solvent-free conditions and in solution.
Viera Poláčková   +5 more
doaj   +1 more source

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