Results 21 to 30 of about 2,229,508 (201)
Microwave-assisted three-component domino reaction: Synthesis of indolodiazepinotriazoles
Beilstein Journal of Organic Chemistry, 2013 A microwave-assisted three-component protocol involving N-1 alkylation of 2-alkynylindoles with epichlorohydrin, ring opening of the epoxide with sodium azide, and an intramolecular Huisgen azide–internal alkyne 1,3-dipolar cycloaddition domino sequence ...
Rajesh K. Arigela +3 more
doaj +1 more source
Novel one-pot process for the synthesis of ethyl 2-imino-4-methyl-2,3-dihydrothiazole-5-carboxylates [PDF]
Journal of the Serbian Chemical Society, 2015 A facile one-pot two-step process for the synthesis of ethyl 2-imino-4-methyl-2,3-dihydrothiazole-5-carboxylates via the cyclocondensation of ethyl 2-thiocyanatoacetoacetate with a variety of hydrazine and hydrazide derivatives has been ...
Beyzaei Hamid, Aryan Reza, Moghadas Hadi
doaj +1 more source
Role of the total isospin 3/2 component in three-nucleon reactions [PDF]
, 2016 We discuss the role of the three-nucleon isospin T=3/2 amplitude in elastic neutron-deuteron scattering and in the deuteron breakup reaction. The contribution of this amplitude originates from charge-independence breaking of the nucleon-nucleon potential
Epelbaum, E. +9 more
core +2 more sources
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
core +3 more sources
Frontiers in Chemistry, 2021 Tannic acid–linked silica-coated Fe3O4 nanoparticles (Fe3O4@SiO2@Tannic acid) were prepared and characterized by transmission electron microscope (TEM), field emission scanning electron microscope (FE-SEM), X-ray powder diffraction (XRD), X-ray ...
Farhad Sedighi Pashaki +1 more
doaj +1 more source
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
core +2 more sources
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.
core +2 more sources
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
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