Results 31 to 40 of about 77,395 (287)
Masked Bisketenes as Diels–Alder Dienes [PDF]
, 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
Diels-Alder Additions to 2,2’-Biaceanthrylene [PDF]
, 2021 A series of Diels-Alder reactions between the diene 2,2’-biaceanthylene and several dienophiles is presented. The diene is a cyclopenta-fused polycyclic aromatic hydrocarbon with anthracene units linked by two cyclopentene rings.
Kyle, Plunkett, Yachu, Du
core +2 more sources
Tandem Diels—Alder/Ene Reactions. [PDF]
ChemInform, 2004 AbstractFor Abstract see ChemInform Abstract in Full Text.
Kraus, George, Kim, Junwon
openaire +3 more sources
An Asymmetric Synthetic Approach to the A-ring of the Taxol Family of Anti-Cancer Compounds
Molecules, 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
Screening of chiral Diels-Alder catalysts by mass spectrometric monitoring of the retro reaction [PDF]
, 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
Aqueous Ti(IV)-Catalyzed Diels-Alder Reaction
Molecules, 2007 The aqueous Diels-Alder reaction of 1,3-cyclohexadiene with 1,4-benzoquinone was compared and contrasted to the same reaction catalyzed with Flextyl P™, a novel Ti(IV) performance catalyst.
Kyle E. Litz
doaj +1 more source
Oxidative [4+2] annulation of styrenes with alkynes under external-oxidant-free conditions
Nature Communications, 2018 A sequence of a Diels–Alder reaction and oxidation is a powerful route to valuable aromatic compounds. Here, the authors report a more atom-economical oxidant-free strategy involving a Diels–Alder with H2 evolution under noble-metal-free photoredox ...
Guoting Zhang +5 more
doaj +1 more source
A broadly applicable Diels-Alder based Synthesis of Ketamine related Arylcyclohexylamines [PDF]
, 2022 Herein we report the synthesis of both aryl derivatives of ketamine and aryl derivatives of ketamine’s major metabolites hydroxynorketamine (HNK), norketamine (NK) and dehydronorketamine (DHNK) via a microwave-assisted Diels-Alder reaction to form the ...
Sherif, El Sheikh +3 more
core +2 more sources
Theoretical study on the Diels-Alder reaction of bromo-substituted 2H-pyrane-2-ones and some substituent vinyls [PDF]
Journal of the Serbian Chemical Society, 2015 A DFT study of the reactivity, regio- and stereoselectivity of Diels-Alder reaction between 3-bromo, 5-bromo, and 3,5-dibromo-2(H)-pyran-2-ones and some weakly activated and unactivated alkenes has been carried out using density functional ...
Haghdadi Mina, Amani Hamed, Nab Nasim
doaj +1 more source
Electrostatic catalysis of a Diels–Alder reaction [PDF]
Nature, 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 chemical reactions, regardless of whether a redox system is involved.
Aragonès, A. +7 more
openaire +5 more sources