Results 61 to 70 of about 216,387 (290)
Beilstein Journal of Organic Chemistry, 2012 A rapid and simple procedure was devised for the synthesis of multifunctionalized cyclic β-amino esters and γ-amino alcohols via the 1,3-dipolar cycloaddition of nitrile oxides to β-aminocyclopentenecarboxylates.
Melinda Nonn +3 more
doaj +1 more source
Halogenation effects in Intramolecular Furan Diels-Alder reactions:broad scope synthetic and computational studies [PDF]
, 2013 For the first time a comprehensive synthetic and computational study of the effect of halogen substitution on both furan and dienophile for the intramolecular Furan Diels-Alder (IMDAF) reaction has been undertaken.
Bebbington, Magnus William Paul +3 more
core +1 more source
Journal of the American Chemical Society, 2019 Either of two different isomeric products can be selectively obtained by photochemical [2+2] cycloaddition of 1,4-bis[2-(4-pyridyl)ethenyl]-benzene within a porous coordination polymer (PCP).
Isabella E Claassens +2 more
semanticscholar +1 more source
Beilstein Journal of Organic Chemistry, 2011 An efficient synthesis of 1,3-diaryl-4-halo-1H-pyrazoles was achieved. The synthesis involves the [3 + 2] dipolar cycloaddition of 3-arylsydnones and 2-aryl-1,1-dihalo-1-alkenes. The process proceeds smoothly in moderate to excellent yields. 1,3-Diaryl-4-
Yiwen Yang +4 more
doaj +1 more source
Frontiers in Chemistry, 2019 DFT calculations were performed to elucidate mechanistic details of an unusual palladium-catalyzed methylcyclopropanation from [2 + 1] cycloadditions of (Z)-2-bromovinylbenzene and endo-N-(p-tolyl)-norbornenesuccinimide.
Fang Ying +6 more
doaj +1 more source
Organocatalysis with carbon nitrides
Science and Technology of Advanced Materials, 2023 Carbon nitrides, a distinguished class of metal-free catalytic materials, have presented a good potential for chemical transformations and are expected to become prominent materials for organocatalysis.
Sujanya Maria Ruban +8 more
doaj +1 more source
Cyclooctyne-based reagents for uncatalyzed click chemistry: A computational survey [PDF]
, 2009 With the goal of identifying alkyne-like reagents for use in click chemistry, but without Cu catalysts, we used B3LYP density function theory (DFT) to investigate the trends in activation barriers for the 1,3-dipolar cycloadditions of azides with various
Chenoweth, David +2 more
core +1 more source
Strain-Promoted 1,3-Dipolar Cycloaddition of Cycloalkynes and Organic Azides
Topics in current chemistry, 2016 A nearly forgotten reaction discovered more than 60 years ago—the cycloaddition of a cyclic alkyne and an organic azide, leading to an aromatic triazole—enjoys a remarkable popularity.
J. Dommerholt +2 more
semanticscholar +1 more source
Synthesis and the Biological Activity of Phosphonylated 1,2,3-Triazolenaphthalimide Conjugates
Molecules, 2016 A novel series of diethyl {4-[(5-substituted-1,3-dioxo-1H-benzo[de]isoquinolin-2(3H)-yl)-methyl]-1H-1,2,3-triazol-1-yl}alkylphosphonates designed as analogues of amonafide was synthesized.
Iwona E. Głowacka +6 more
doaj +1 more source
Ruthenium-Catalyzed Azide Alkyne Cycloaddition Reaction: Scope, Mechanism, and Applications.
Chemical Reviews, 2016 The ruthenium-catalyzed azide alkyne cycloaddition (RuAAC) affords 1,5-disubstituted 1,2,3-triazoles in one step and complements the more established copper-catalyzed reaction providing the 1,4-isomer.
Johan R Johansson +3 more
semanticscholar +1 more source