Results 1 to 10 of about 49,624 (185)

N-(Pyridin-2-ylmethyl)pyridin-2-amine [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2011
The title compound, C(11)H(11)N(3), crystallizes with two mol-ecules (A and B) in the asymmetric unit. The geometries of both mol-ecules are very similar, with the exception of the torsion angles of the inter-ring chains; the values for C-N-C-C are 67.4 (5) and -69.3 (5)° for mol-ecules A and B, respectively.
Suk-Hee Moon, Tae Ho Kim, Ki-Min Park
openaire   +3 more sources

Ammonium metavanadate (NH4VO3): a highly efficient and eco-friendly catalyst for one-pot synthesis of pyridines and 1,4-dihydropyridines

open access: yesScientific Reports, 2022
In this study, we reported the ammonium metavanadate (NH4VO3) as an efficient, cost-effective, and mild catalyst for the synthesis of substituted pyridines via a one-pot pseudo four-component reaction.
Jamal Rahimi   +6 more
doaj   +1 more source

Synthesis of substituted pyridines with diverse functional groups via the remodeling of (Aza)indole/Benzofuran skeletons

open access: yesCommunications Chemistry, 2023
Substituted pyridines with diverse functional groups are important structural motifs found in numerous bioactive molecules. Several methodologies for the introduction of various bio-relevant functional groups to pyridine have been reported, but there is ...
Kannan Vaithegi   +4 more
doaj   +1 more source

Visible light-promoted synthesis of 2-aryl-(3-organoselanyl)thieno[2,3-b]pyridines

open access: yesGreen Chemistry Letters and Reviews, 2022
We describe a simple and environment-friendly visible light-promoted protocol to access 2-aryl-(3-organoselanyl)thieno[2,3-b]pyridines, through the selenocyclization of 3-(arylethynyl)-2-(alkylthio)pyridines in the presence of diorganyl diselenides as ...
Ricardo Hellwig Bartz   +5 more
doaj   +1 more source

Sublimation/vaporization and solvation enthalpies of monosubstituted pyridine derivatives

open access: yesChemical Thermodynamics and Thermal Analysis, 2022
Different sectors, including medicine and display technology, utilize substituted pyridines. To establish the quality of products manufactured from pyridines, chemical thermodynamics of the solvation and evaporation enthalpies of the pyridines are ...
Rawand S. Abdullah, Boris N. Solomonov
doaj   +1 more source

One-step synthesis of pyridines and dihydropyridines in a continuous flow microwave reactor [PDF]

open access: yes, 2013
The Bohlmann–Rahtz pyridine synthesis and the Hantzsch dihydropyridine synthesis can be carried out in a microwave flow reactor or using a conductive heating flow platform for the continuous processing of material. In the Bohlmann–Rahtz reaction, the use
Bagley, Mark C   +4 more
core   +2 more sources

Regioselective C–H Activation of Substituted Pyridines and other Azines using Mg- and Zn-TMP-Bases

open access: yesSynOpen, 2018
The metalation of substituted pyridines, diazines and related N-heterocycles using TMPMgCl·LiCl, TMP2Mg·2LiCl, TMPZnCl·LiCl or TMP2Zn·2LiCl2·2MgCl2 (TMP = 2,2,6,6-tetramethylpiperidyl) in the presence or absence of a Lewis acid is reviewed ...
Moritz Balkenhohl, Paul Knochel
doaj   +1 more source

Visible-Light-Induced C–C Coupling Reaction to Synthesize Bipyridine From 3-Cyano-1,4-Dihydropyridines

open access: yesFrontiers in Chemistry, 2020
A concise and efficient photocatalytic C–C coupling of 1-benzyl-3-cyano-1, 4-dihydropyridine for synthesis of 1,1′-dibenzyl-3, 3′-dicyano-1,1′,4,4′-tetrahydro-4, 4′-bipyridine is described.
Shijun Chen   +5 more
doaj   +1 more source

The Synthesis of Diverse Annulated Pyridines with 6-Membered Functionalized Saturated Cycles for Medical Chemistry Research

open access: yesЖурнал органічної та фармацевтичної хімії, 2023
The article describes a set of pyridines annulated with functionalized 6-membered saturated rings, which are attractive building blocks for the synthesis of diversified compound libraries in medical chemistry.
Dmytro V. Yehorov, Andrii I. Subota
doaj   +1 more source

Synthesis of tetrahydrofuro[3,2-c]pyridines via Pictet–Spengler reaction

open access: yesBeilstein Journal of Organic Chemistry, 2023
A semi-one-pot method for the synthesis of 4-substituted tetrahydrofuro[3,2-c]pyridines by the Pictet–Spengler reaction was developed. The method is based on the condensation of easily accessibly 2-(5-methylfuran-2-yl)ethanamine with commercially ...
Elena Y. Mendogralo, Maxim G. Uchuskin
doaj   +1 more source

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