A facile synthesis, dynamic 1H NMR and theoretical study the novel stable heterocyclic phosphorus ylides containing tetrazole
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منابع مشابه
Theoretical study on the mechanism of stable phosphorus ylides derived from 5-aminoindazole in the presence of different dialkyl acetyelenedicarboxylates
In the recent work, the reaction mechanism between triphenylphosphine 1, dialkyl acetylenedicarboxylates 2 in the presence of NH-acid, such as 5-aminoindazole 3 were investigated theoretically. Quantum mechanical studies were performed for evaluation of potential energy surfaces of all structures participated in the reaction mechanism both in gas phase and in dichloromethane. The first step of ...
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15 صفحه اولExperimental and Theoretical Study of Stable Phosphorus Ylides Derived from 5-Nitroindazole in the Presence of Different Acetyelenic Esters: Furthure Insight into the Reaction Mechanism
The kinetics of the reactions between triphenylphosphine 1 and dialkyl acetylenedicarboxylates 2, in the presence of a NH-acid such as 5-nitroindazole 3,were studied. Corresponding kinetic parameters to all reactions were evaluated, with the second order rate constant (k) values calculated. Effects of solvent, temperature, and reactant...
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The ylides Ph3E-C6H6N2O3 (7, E = P (a), As (b), Sb (c)) have been prepared through the reaction of Ph3E and 5bromo-1,3-dimethyl-2,4,6(1H,3H,5H)-pyrimidinetrione (5-bromo-1,3-dimethylbarbituric acid) 6 in the presence of triethylamine. Their characterisation was performed by nuclear magnetic resonance (NMR), mass spectrometry (MS) and elemental analysis.
متن کاملtheoretical study on the mechanism of stable phosphorus ylides derived from 5-aminoindazole in the presence of different dialkyl acetyelenedicarboxylates
in the recent work, the reaction mechanism between triphenylphosphine 1, dialkyl acetylenedicarboxylates 2 in the presence of nh-acid, such as 5-aminoindazole 3 were investigated theoretically. quantum mechanical studies were performed for evaluation of potential energy surfaces of all structures participated in the reaction mechanism both in gas phase and in dichloromethane. the first step of ...
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ژورنال
عنوان ژورنال: Arkivoc
سال: 2009
ISSN: 1551-7012
DOI: 10.3998/ark.5550190.0009.h16