Results 91 to 100 of about 2,240,218 (271)
An Integrated Building Block for Cascade Diels–Alder and Hetero-Diels–Alder Reactions
, 2022 The Diels–Alder (DA) reaction and hetero-Diels–Alder (HDA) reaction are among the most powerful methods for the construction of carbocycles and heterocycles. Herein, an integrated building block of DA and HDA reactions is described.
Shuheng Xu (11009858) +5 more
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Estudos sobre o uso do NbCl5 como ácido de Lewis em reações de Povarov
Orbital: The Electronic Journal of Chemistry, 2011 RESUMO: O objetivo deste trabalho foi investigar o uso de NbCl5 como ácido de Lewis em reações de cicloadição (Reação Aza-Diels-Alder (Povarov)) entre bases de Schiff e éteres enólicos.
Luiz Carlos Silva-Filho, Mayara Frenhe
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, 1980 This work was a kinetic study of the Diels-Alder reaction of isoprene with variously substituted benzalmalononitriles. Application of the Hammett equation, a linear free energy relationship, to the kinetic rate data yielded a value of 1.31 for rho.
Copp, James D.
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o-Fluoranil Chemistry: Diels–Alder versus Hetero-Diels–Alder Cycloaddition
, 2016 The title quinone undergoes [4 + 2] cycloadditions in two ways, Diels–Alder on the ring and hetero-Diels–Alder by attack at the oxygens. The latter mode of reaction is strongly favored thermodynamically, but there is a kinetic bias favoring the normal ...
John Shellito (2440546) +2 more
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Molecules, 2013 Helical-chiral double hydrogen bond donor catalysts promote the nitroalkene Diels-Alder reaction in an enantio- and periselective manner. This represents the first asymmetric catalytic nitroalkene Diels-Alder reaction via LUMO-lowering catalysis. To gain
Zhili Peng +2 more
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Fluorophobic Acceleration of Diels−Alder Reactions
, 2016 Fluorophobic Acceleration of Diels−Alder ...
Kathleen E. Myers (2982246) +1 more
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Recent Applications of the Diels-Alder Reaction in the Synthesis of Natural Products (2017-2020)
, 2021 The Diels-Alder reaction has long been established as an extremely useful procedure in the toolbox of natural product chemists. It tolerates a wide spectrum of building blocks of different complexity and degrees of derivatization, and enables the ...
Kalesse, Markus +3 more
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CHIMIA, 1988 The design of efficient organic electron acceptors requires oligomeric and polymeric hydrocarbons in which separate redox-active units are connected in a sterically variable fashion.
Manfred Wagner +2 more
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Enantioselective Diels-Alder Reaction Catalyzed by G-Quadruplex DNA and Its Metalloenzyme
, 2012 Enantioselective Diels-Alder Reaction Catalyzed by G-Quadruplex DNA and Its ...
卢胜梅 +6 more
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One-Pot Three-Component Tandem Metathesis/Diels−Alder Reaction
, 2016 A tandem enyne, diene-ene metathesis reaction followed by Diels−Alder reaction accomplished a stereoselective three-component reaction protocol with four ...
Hee-Yoon Lee (165448) +4 more
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