Mechanism and Selectivity of N-Triflylphosphoramide Catalyzed (3+ + 2) Cycloaddition between Hydrazones and Alkenes
Brønsted acid catalyzed (3++ 2) cycloadditions between hydrazones and alkenes provide a
general approach to pyrazolidines. The acidity of the Brønsted acid is crucial for the catalytic …
general approach to pyrazolidines. The acidity of the Brønsted acid is crucial for the catalytic …
Understanding the mechanism of the Povarov reaction. A DFT study
The molecular mechanism of the Povarov reaction in acetonitrile has been studied at the
MPWB1K/6-311G** level of theory. This reaction follows a domino process that comprises …
MPWB1K/6-311G** level of theory. This reaction follows a domino process that comprises …
Predictions of substituent effects in thermal azide 1, 3-dipolar cycloadditions: Implications for dynamic combinatorial (reversible) and click (irreversible) chemistry
Substituent effects in 1, 3-dipolar cycloadditions of azides with alkenes and alkynes were
investigated with the high-accuracy CBS-QB3 method. The possibilities for noncatalytic …
investigated with the high-accuracy CBS-QB3 method. The possibilities for noncatalytic …
Understanding the mechanism of the N-heterocyclic carbene-catalyzed ring-expansion of 4-formyl-β-lactams to succinimide derivatives
LR Domingo, MJ Aurell, M Arnó - Tetrahedron, 2009 - Elsevier
The mechanism of the N-heterocyclic carbene (NHC)-catalyzed ring-expansion of 4-formyl-β-
lactams to succinimides has been studied using DFT methods at the B3LYP/6-31G∗∗ level …
lactams to succinimides has been studied using DFT methods at the B3LYP/6-31G∗∗ level …
Green synthetic approaches: solventless synthesis of polyfunctionally substituted aromatics as potential versatile building blocks in organic synthesis utilizing …
SM Al-Mousawi, MS Moustafa… - Green Chemistry Letters …, 2011 - Taylor & Francis
Abstract A variety of 1, 3, 5-trisubstituted benzenes could be obtained upon heating
enaminones in absence of solvent over montmorillonite-K-10. Heating mixtures of two …
enaminones in absence of solvent over montmorillonite-K-10. Heating mixtures of two …
A DFT study of the role of Lewis acid catalysts in the mechanism of the 1, 3-dipolar cycloaddition of nitrile imines towards electron-deficient acryloyl derivatives
The role of the Mg complex formation in the reaction rate and regioselectivity of the 1, 3-
dipolar cycloaddition (13DC) reactions of nitrile imines (NIs) towards electron-deficient …
dipolar cycloaddition (13DC) reactions of nitrile imines (NIs) towards electron-deficient …
Theoretical study of the regio-and stereoselectivity of the intramolecular Povarov reactions yielding 5 H-chromeno [2, 3-c] acridine derivatives
The intramolecular Povarov (IMP) reactions involved in the synthesis of 5H-chromeno [2, 3-
c] acridine derivatives [Tetrahedron Lett., 2010, 51, 3071–3074] have been studied using …
c] acridine derivatives [Tetrahedron Lett., 2010, 51, 3071–3074] have been studied using …
[HTML][HTML] Design and synthesis of two triazonine-carbaldehyde derivatives using several chemical tools
L Figueroa-Valverde, F Diaz-Cedillo… - Journal of Saudi …, 2018 - Elsevier
Several triazonine-carbaldehyde derivatives have been prepared using different protocols;
however, some require special reagents and conditions. The aim of study involved the …
however, some require special reagents and conditions. The aim of study involved the …
A DFT study of the role of the Mg complex formation on the mechanism of the 1, 3-dipolar cycloadditions of benzonitrile oxides with acryloylpyrazolidinone
The role of the Mg complex formation on the mechanism, the reaction rate and
regioselectivity of the 1, 3-dipolar cycloaddition (13DC) reactions of benzonitrile oxides …
regioselectivity of the 1, 3-dipolar cycloaddition (13DC) reactions of benzonitrile oxides …
Brønsted acid-promoted aziridination of electron-deficient olefins
J Li, Y Fu, QX Guo - Tetrahedron, 2008 - Elsevier
A combined theoretical and experimental approach was used to systematically study the
Brønsted acid-promoted aziridination of electron-deficient olefins. It was found that Brønsted …
Brønsted acid-promoted aziridination of electron-deficient olefins. It was found that Brønsted …