Results 301 to 310 of about 17,768 (339)

Stereoselective polar radical crossover for the functionalization of strained-ring systems. [PDF]

Commun Chem
Trauner F, Ghazali R, Rettig J, Thiele CM, Didier D.   +4 more
europepmc   +1 more source

Zn(OTf)₂-catalyzed intra- and intermolecular selenofunctionalization of alkenes under mild conditions. [PDF]

RSC Adv
Qi C, Lu Z, Gu Y, Bao X, Xiong B, Liu GQ.   +5 more
europepmc   +1 more source

Depression Symptoms in Patients with Cystic Fibrosis Fluctuate at Baseline and Improve with Elexacaftor/Tezacaftor/Ivacaftor Therapy. [PDF]

Am J Respir Crit Care Med
Piehler L, Thalemann R, Lehmann C, Stahl M, Mall MA, Graeber SY.   +5 more
europepmc   +1 more source

Hypervalent iodine-mediated cyclization of bishomoallylamides to prolinols. [PDF]

Beilstein J Org Chem
Butt SE, Kepski K, Sotiropoulos JM, Moran WJ.   +3 more
europepmc   +1 more source

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Pulse Radiolysis of Pyrrolidine

Radiation Research, 1970
The 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
openaire   +3 more sources

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
openaire   +4 more sources

ChemInform Abstract: Removal of the Pyrrolidine Group by Dehydrogenation of a 4‐Pyrrolidin‐ 2‐yltetrahydroisoquinoline.

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, Seidl, E., Eibler, E., Wiegrebe, Wolfgang   +3 more
openaire   +3 more sources

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, Louise Male, Antonio Feula   +2 more
openaire   +2 more sources

Telescoped Synthesis of Stereodefined Pyrrolidines

Organic Letters, 2013
Telescoped and one-pot olefination/asymmetric functionalization approaches to disubstituted pyrrolidines (dr up to 99:1, up to 99% ee) have been developed using commercially available tetramisole (0.1 to 5 mol %). Using OTMS-quinidine as the Lewis base gives preferential access to an anti-configured pyrrolidine in high enantioselectivity.
Dorine Belmessieri, David B. Cordes, Alexandra M. Z. Slawin, Andrew D. Smith   +3 more
openaire   +3 more sources

The microwave spectrum of pyrrolidine

Journal of Molecular Spectroscopy, 1984
Abstract The rotational spectra of the normal and N-D isotopic species of pyrrolidine have been measured. The molecule exists in an envelope conformation, with the nitrogen atom out of the plane containing the carbon atoms and with the imino hydrogen in the axial position.
Heinz Oberhammer, C.H. Gomez, Roberto R. Filgueira, G. Pfafferott, Walther Caminati   +4 more
openaire   +2 more sources