Results 31 to 40 of about 2,230,877 (347)
Beilstein Journal of Organic Chemistry, 2022 Bifunctional thiourea-catalyzed asymmetric [3 + 2] annulation reactions of 2-isothiocyanato-1-indanones with barbiturate-based olefins have been developed to afford chiral dispiro[indene-pyrrolidine-pyrimidine]s.
Jiang-Song Zhai, Da-Ming Du
doaj +1 more source
Unfolding symmetric Bogdanov-Takens bifurcations for front dynamics in a reaction-diffusion system [PDF]
, 2019 This manuscript extends the analysis of a much studied singularly perturbed three-component reaction-diffusion system for front dynamics in the regime where the essential spectrum is close to the origin.
Chirilus-Bruckner, Martina +3 more
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Rotating Spiral Waves with Phase-Randomized Core in Non-locally Coupled Oscillators [PDF]
, 2003 Rotating spiral waves with a central core composed of phase-randomized oscillators can arise in reaction-diffusion systems if some of the chemical components involved are diffusion-free.
Kuramoto, Yoshiki, Shima, Shin-ichiro
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E2 component in subcoulomb breakup of ^{8}B [PDF]
, 1996 We calculate the angular distribution and total cross section of the ^{7}Be fragment emitted in the break up reaction of ^{8}B on ^{58}Ni and ^{208}Pb targets at the subCoulomb beam energy of 25.8 MeV, within the non-relativistic theory of Coulomb ...
Shyam, R., Thompson, I. J.
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Benzannulated Bicycles by Three‐Component Aryne Reactions
Angewandte Chemie International Edition, 2011 Triple crown: A pair of three-component coupling reactions between arynes, isocyanides, and either activated alkynes or phenyl esters generates unusual iminoindenones or phenoxy iminoisobenzofurans (see scheme), the latter of which may be advanced to o-ketobenzamides by performing direct hydrolysis.
Allan, Kevin M. +2 more
openaire +3 more sources
Multicomponent Reaction Discovery: Three-Component Synthesis of Spirooxindoles [PDF]
Organic Letters, 2010 The Lewis acid-catalyzed, three-component reaction of isatin and two 1,3-dicarbonyl compounds is reported. Reactions proceed with high efficiency under mild reaction conditions and with good functional group tolerance to afford spirooxindole pyranochromenedione derivatives.
Bo, Liang +3 more
openaire +2 more sources
Organic Letters, 2018 The three-component reaction of aryl iodides, alkynes, and diaziridinone is described. The reaction provides an innovative synthetic approach for indoles. The approach features high efficiency, broad substrate scope, and excellent regioselectivity.
Bo Zhou +4 more
semanticscholar +1 more source
N-methylimidazole mediated synthesis of aryl alkyl ethers under microwave irradiation and solvent free conditions [PDF]
Journal of the Serbian Chemical Society, 2015 Microwave-assisted three-component reaction has been established for the synthesis of aryl alkyl ethers. The reaction was carried out under solvent free conditions in the presence of N-methylimidazole and dialkylacetylenedicarboxylate to furnish
Djahaniani Hoorieh +2 more
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Early contingentnegative variation of the EEG and attentional flexibility are reduced in hypotension [PDF]
, 2002 This study explored the question as to whether hypotension is related to decreased attentional performance and reduced cortical activation. A total of 50 females aged 19 44 years participated in the study. Attentional performance was assessed using three
Duschek, Stefan +4 more
core +1 more source
Microwave-assisted Synthesis of Acridine-1,8(2H,5H)-diones via a One-pot, Three Component Reaction [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2017 A new and improved protocol for the synthesis, in good to excellent yields, of acridine-1,8(2H,5H)-diones is described, involving a one-pot, three component reaction of dimedone, arylglyoxals, and ammonium acetate in water under microwave irradiation.
Ahmad Poursattar Marjani +3 more
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