Heterogeneous Diels–Alder catalysis for biomass-derived aromatic compounds

AE Settle, L Berstis, NA Rorrer, Y Roman-Leshkóv… - Green …, 2017 - pubs.rsc.org
In this tutorial review, we provide an overview of heterogeneous Diels–Alder catalysis for the
production of lignocellulosic biomass-derived aromatic compounds. Diels–Alder reactions …

Salt effects on Diels− Alder reaction kinetics

A Kumar - Chemical Reviews, 2001 - ACS Publications
Diels-Alder reaction is a powerful tool employed frequently for the synthesis of six-
membered ring systems with excellent stereoselective control. 1 The memorable publication …

On the theory of organic catalysis “on water”

Y Jung, RA Marcus - Journal of the American Chemical Society, 2007 - ACS Publications
A molecular origin of the striking rate increase observed in a reaction on water is studied
theoretically. A key aspect of the on-water rate phenomenon is the chemistry between water …

A DFT study of the acid-catalyzed conversion of 2, 5-dimethylfuran and ethylene to p-xylene

N Nikbin, PT Do, S Caratzoulas, RF Lobo… - Journal of catalysis, 2013 - Elsevier
We present a detailed mechanism for the conversion of DMF (2, 5-dimethylfuran) and
ethylene to p-xylene, obtained by gas-phase DFT electronic structure calculations. The …

Do secondary orbital interactions really exist?

JI García, JA Mayoral, L Salvatella - Accounts of chemical …, 2000 - ACS Publications
A revision of the most typical examples used to illustrate the existence of secondary orbital
interactions (SOI) has been achieved. However, our analysis indicates that no conclusive …

The simplest Diels–Alder reactions are not endo-selective

WJ Lording, T Fallon, MS Sherburn… - Chemical …, 2020 - pubs.rsc.org
There is a widespread perception that the high level of endo selectivity witnessed in many
Diels–Alder reactions is an intrinsic feature of the transformation. In contrast to expectations …

New findings on the Diels− Alder reactions. An analysis based on the bonding evolution theory

S Berski, J Andrés, B Silvi… - The Journal of Physical …, 2006 - ACS Publications
Two Diels− Alder type reactions, ie, normal electron demand (NED) between 1, 3-butadiene
(BD) and acrolein (Acr) and inverse electron demand (IED) between 2, 4-pentadienal (PDA) …

Influence of reactant polarity on the course of the inverse-electron-demand Diels− Alder reaction. A DFT study of regio-and stereoselectivity, presence of Lewis Acid …

LR Domingo, M Arnó, J Andres - The Journal of Organic …, 1999 - ACS Publications
The molecular mechanisms for the inverse-electron-demand Diels− Alder reactions between
nitroethene and three substituted ethenes (propene, methyl vinyl ether, and …

Origin of the synchronicity on the transition structures of polar Diels− Alder reactions. Are these reactions [4+ 2] processes?

LR Domingo, M José Aurell, P Pérez… - The Journal of Organic …, 2003 - ACS Publications
The transition structures (TSs) for a series of related Diels− Alder reactions between
cyclopentadiene and mono-, di-, tri-, and tetracyanoethylene derivatives have been studied …

Influence of polarity and activation energy in microwave–assisted organic synthesis (MAOS)

AM Rodríguez, P Prieto, A de la Hoz… - …, 2015 - Wiley Online Library
The aim of this work was to determine the parameters that have decisive roles in microwave‐
assisted reactions and to develop a model, using computational chemistry, to predict a priori …