Results 21 to 30 of about 7,607,880 (287)

Computational study on the catalytic control of endo/exo Diels-Alder reactions by cavity quantum vacuum fluctuations, https://github.com/fabijan5/qed-diels-alder

open access: yes, 2023
Computational study on the catalytic control of endo/exo Diels-Alder reactions by cavity quantum vacuum ...
Angel Rubio   +2 more
core   +1 more source

Masked Bisketenes as Diels–Alder Dienes [PDF]

open access: yes, 2020
2,5-Bis(tert-butyldimethylsilyloxy)furans are established as masked vicinal bisketenes for application as dienes in the Diels–Alder reaction.
Emma, Becroft   +4 more
core   +2 more sources

Machine Learning to Predict Diels-Alder Reaction Barriers from the Reactant State Electron Density [PDF]

open access: yes, 2021
Reaction barriers are key to our understanding of chemical reactivity and catalysis. Certain reactions are so seminal in chemistry, that countless variants, with or without catalysts, have been studied and their barriers have been computed
Matthew, Hennefarth   +3 more
core   +2 more sources

Cope Rearrangement versus a Novel Tandem Retro-Diels−Alder−Diels−Alder Reaction with Role Reversal†

open access: yes, 2016
A reinvestigation of the thermolysis of 4,4-dibromotetracyclo[6.2.1.02,7.03,5]undec-9-ene (2) affords diene 8 with a completely rearranged hydrocarbon skeleton via the isolable intermediate 4, along with cyclopentadiene and bromobenzene. DFT calculations
Kuan-Jen Su (2168707)   +4 more
core   +5 more sources

Intramolecular Imino Diels-Alder Reaction: Progress toward the Synthesis of Uncialamycin [PDF]

open access: yes, 2009
We herein described an intramolecular imino Diels-Alder reaction promoted with BF3.OEt2/DDQ affording substituted quinolines. Using this procedure, we prepared the chiral quitioline moiety of the uncialamycin, a new enediyne natural ...
Pierre van de Weghe   +5 more
core   +1 more source

Hetero-Diels-Alder Reaction between Singlet Oxygen and Anthra cene Drives Integrative Cage Self-Sorting [PDF]

open access: yes, 2023
A ZnII8L6 pseudo-cube containing anthracene-centered ligands, a ZnII4L’4 tetrahedron with similar side length as the cube, and a trigonal prism ZnII6L3L’2 formed in equilibrium from a common set of subcomponents.
Tanya, Ronson   +6 more
core   +2 more sources

Screening of chiral Diels-Alder catalysts by mass spectrometric monitoring of the retro reaction [PDF]

open access: yes, 2007
A rapid screening procedure for the identification of chiral Diels-Alder catalysts by ESI MS was developed. Screening of the retro reaction made it possible to indirectly determine the catalyst’s enantioselectivity for the forward, product-forming ...
Teichert, Antje Maria
core   +1 more source

The application of the Diels-Alder reaction to polymer syntheses based on furan/maleimide reversible couplings

open access: yesPolímeros, 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

Electrostatic catalysis of a Diels–Alder reaction

open access: yesNature, 2016
It is often thought that the ability to control reaction rates with an applied electrical potential gradient is unique to redox systems. However, recent theoretical studies suggest that oriented electric fields could affect the outcomes of a range of ...
Albert C. Aragonès   +7 more
semanticscholar   +1 more source

An Asymmetric Synthetic Approach to the A-ring of the Taxol Family of Anti-Cancer Compounds

open access: yesMolecules, 1998
A synthetic route developed for the preparation of the A-ring of Taxol family of molecules is reported. By means of an intramolecular Diels-Alder reaction an asymmetric approach to this ring has been accomplished.
M. L. Marin, D. Craig
doaj   +1 more source

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