Results 21 to 30 of about 77,395 (287)
Exo-selective intermolecular Diels–Alder reaction by PyrI4 and AbnU on non-natural substrates
Communications Chemistry, 2021 Diels-Alderases remain rare in nature, particularly those catalysing intermolecular reactions. Here two natural Diels-Alderases are shown to catalyse exo-selective intermolecular Diels-Alder reactions on non-natural substrates.
Rajnandani Kashyap +8 more
doaj +1 more source
Diaza-1,3-butadienes as Useful Intermediate in Heterocycles Synthesis
Molecules, 2022 Many heterocyclic compounds can be synthetized using diaza-1,3-butadienes (DADs) as key structural precursors. Isolated and in situ diaza-1,3-butadienes, produced from their respective precursors (typically imines and hydrazones) under a variety of ...
Jorge Heredia-Moya +3 more
doaj +1 more source
Generation of novel Diels–Alder reactions using a generative adversarial network [PDF]
, 2022 Deep learning has enormous potential in the chemical and pharmaceutical fields, and generative adversarial networks (GANs) in particular have exhibited remarkable performance in the field of molecular generation as generative models.
Yejian, Wu +9 more
core +2 more sources
Diels–Alder Ligation of Peptides and Proteins [PDF]
Chemistry – A European Journal, 2006 AbstractThe development of the Diels–Alder cycloaddition as a new method for the site‐specific chemoselective ligation of peptides and proteins under mild conditions is reported. Peptides equipped with a 2,4‐hexadienyl ester and an N‐terminal maleimide react in aqueous media to give cycloadducts in high yields and depending on the amino acid sequence ...
de Araujo, A. D. +5 more
openaire +6 more sources
Polymer Testing, 2023 The exploration of novel bio-based functional polymers has high application value and confirms to sustainable development strategies following the increasing shortage of fossil resources.
Yuan Nie +9 more
doaj +1 more source
Polímeros, 2005 The furan heterocycle is a dienic reagent particularly suitable for the Diels-Alder reaction and maleimides represent a typical family of complementary reagents because of their strong dienophilic character.
Alessandro Gandini
doaj +1 more source
Synthesis and Spectrophotometric Analysis of 1-Azafluorenone Derivatives
Molecules, 2020 A new extension for the ‘one pot’ construction of diverse 1-azafluorene derivatives featuring a Diels–Alder/retro-Diels–Alder cycloaddition is reported. Conditions were also determined for oxidation to the derived azafluorenones.
Nicholas H. Angello +3 more
doaj +1 more source
Efficient and accurate description of Diels-Alder reactions using density functional theory [PDF]
, 2022 Modeling chemical reactions using Quantum Chemistry is a widely used predictive strategy capable to complement experiments in order to understand the intrinsic mech- anisms guiding the chemicals towards the most favorable reaction products.
Jean-Philip, Piquemal +3 more
core +2 more sources
Niobium Pentachloride Activation of Enone Derivatives: Diels-Alder and Conjugate Addition Products
Molecules, 2002 Niobium pentachloride has proven to be a powerful activating agent for Diels-Alder or conjugate addition reactions of cycloenones. The Diels-Alder product was obtained only with an unsubstituted enone (cyclohexenone) and the highly reactive diene ...
Gil Valdo José da Silva +2 more
doaj +1 more source
Applications of Danishefsky's dienes in asymmetric Oxo-Diels-Alder reactions
, 2022 Applications of Danishefsky's dienes in catalytic asymmetric hetero-Diels-Alder (AHDA) reactions or specifically, their asymmetric Oxo-Diels-Alder (AOxo-DA) reactions with appropriate dienophiles are highlighted in detail, including the preparation of
AfsanehTaheri kal Koshvandi (11996987) +1 more
core +1 more source