Results 61 to 70 of about 2,229,508 (201)

Palladium-Catalyzed Carboxylative Coupling of Allylstannanes and allyl halides [PDF]

open access: yes, 2000
A three-component carboxylative coupling between allyl halides, allylstannanes, and CO2 to produce allyl esters is catalyzed by Pd and Pt phosphine complexes.
Franks, Russell J.
core   +2 more sources

Vector-meson contributions do not explain the rate and spectrum in K_L -> pi0 gamma gamma

open access: yes, 2002
We analyze the recent NA48 data for the reaction K_L -> pi0 gamma gamma with and without the assumption of vector meson dominance (VMD). We find that the data is well described by a three-parameter expression inspired by O(p^6) chiral perturbation theory.
A. Alavi-Harati   +32 more
core   +1 more source

Modeling chemical reactions in rivers: A three component reaction

open access: yesDiscrete & Continuous Dynamical Systems - A, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Li, Congming, Wright, Eric S.
openaire   +2 more sources

Cerium(III) Chloride: A Highly Efficient Reagent for the Synthesis of α‐Aminonitriles [PDF]

open access: yes, 2007
We report a highly efficient, one‐pot, three‐component condensation of carbonyl compounds, amines, and TMSCN in MeCN; the reaction is significantly promoted by the catalytic amount of cerium(III) chloride at ambient temperature in excellent yields ...
Nanjundaswamy, H.M., Pasha, M.A.
core   +1 more source

Organobase-catalyzed three-component reactions for the synthesis of 4H-2-aminopyrans, condensed pyrans and polysubstituted benzenes

open access: yesBeilstein Journal of Organic Chemistry, 2014
Novel routes for the preparation of 2-amino-4H-pyran-3-carbonitrile 9, amino-arylbenzoic acid ester derivatives 13a,b, 2-aminotetrahydro-4H-chromene-3-carbonitrile 18, 3-amino-4-cyanotetrahydronaphthalene-2-carboxylic acid ester 26 and 4-amino-3,5 ...
Moustafa Sherief Moustafa   +4 more
doaj   +1 more source

Isocyanide based multicomponent reactions of oxazolidines and related systems [PDF]

open access: yes, 2010
N-Alkyloxazolidines react in a multicomponent reaction with carboxylic acids and isocyanides to give N-acyloxyethylamino acid amides. The previously reported reaction conditions were improved using a design of experiments approach (DoE).
Diorazio, LJ   +4 more
core   +1 more source

Water formation at low temperatures by surface O2 hydrogenation II: the reaction network

open access: yes, 2010
Water is abundantly present in the Universe. It is the main component of interstellar ice mantles and a key ingredient for life. Water in space is mainly formed through surface reactions.
Acharyya   +38 more
core   +1 more source

Facile Synthesis of Functionalized Spiropyrrolizidine Oxindoles via a Three-Component Tandem Cycloaddition Reaction

open access: yesMolecules, 2011
An efficient synthesis of functionalized spiropyrrolizidine oxindoles via a three-component tandem cycloaddition has been achieved. This strategy can provide direct and rapid access to spiropyrrolizidine oxindoles in high yields (up to 99%) with ...
Tai-Ran Kang   +5 more
doaj   +1 more source

Resonantly Forced Inhomogeneous Reaction-Diffusion Systems

open access: yes, 2000
The dynamics of spatiotemporal patterns in oscillatory reaction-diffusion systems subject to periodic forcing with a spatially random forcing amplitude field are investigated.
C. J. Hemming, Gáspár V., R. Kapral
core   +1 more source

The mechanism underlying backward priming in a lexical decision task: Spreading activation versus semantic matching [PDF]

open access: yes, 1998
Koriat (1981) demonstrated that an association from the target to a preceding prime, in the absence of an association from the prime to the target, facilitates lexical decision and referred to this effect as "backward priming".
Brown, C., Chwilla, D., Hagoort, P.
core   +2 more sources

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