Results 111 to 120 of about 2,093,167 (240)

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, 刘龑, 李英豪, 王长号, 周俊, 贾国卿, 李灿   +6 more
core  

Self‐Immolative Poly(Benzyl Ether)s: Design Principles and Controlled Depolymerization

Chemistry – A European Journal, EarlyView.
Unzipping to Sustainability: This Concept article explores the thermodynamic design of quinone‐methide (QM)‐based poly(benzyl ether)s (PBEs). It explains how a low ceiling temperature (Tc), QM stability, and an entropic gain drive rapid depolymerization (“unzipping”) of PBEs into monomers.
Ji Woo Kim, Yewon Kang, Hyungwoo Kim
wiley   +1 more source

Diels–Alder Versus Michael Adducts of 2‐Methylfuran and Maleate: Consecutive Synthetic Access to Both Product Types

European Journal of Organic Chemistry, EarlyView.
More than a century after Albrecht's original proposal, an unexpected synthetic relationship between the historically misassigned Michael adduct type and the genuine Diels–Alder product is revealed. Experimental and theoretical studies show that the Michael adduct is not formed directly from the diene and dienophile, but instead arises through ...
Johanna Buddeberg, Jianing Yang, Shuji Akai, Harald Gröger   +3 more
wiley   +1 more source

The Cyano‐Diels–Alder Reaction: From Nitrile Activation to Functional Molecular Architectures

European Journal of Organic Chemistry, EarlyView.
This Concept Article presents the evolution of the cyano‐Diels–Alder reaction from its early examples to its current development as a valuable synthetic tool for the preparation of N‐heterocycles, fused polycycles and functional chromophores, tracing the key breakthroughs that have transformed this underexplored transformation into a relevant platform ...
Giovanni Bottari
wiley   +1 more source

Diels-Alder reactions for carbon material synthesis and surface functionalization

, 2013
To meet the ever growing demand for carbon nanomaterials with tailored properties, Diels-Alder reactions are emerging as an efficient alternative to other synthetic methods.
Zydziak, N., Yameen, B., Barner-Kowollik, C.   +2 more
core   +1 more source

The Expanding Role of Diazirines in Synthetic Methodology

European Journal of Organic Chemistry, EarlyView.
Beyond their established role in photoaffinity labeling, diazirines have emerged as versatile reagents in synthetic chemistry. This review highlights their dual reactivity as carbene and nitrogen‐transfer precursors, showcasing mechanistic insights and diverse applications in cyclopropanations, cycloadditions, skeletal editing, amination, heterocycle ...
Viktor Savic, Dominik Schnalzer, Marko D. Mihovilovic, Michael Schnürch   +3 more
wiley   +1 more source

Nucleophilic Reactions of Cyclobutenones and the Related 4,4‐Dichlorocyclobutenone Derivatives

European Journal of Organic Chemistry, EarlyView.
Cyclobutenone derivates and their 4,4‐dichloro counterparts have an uninterrupted attention as useful synthons in the synthesis of complex organic molecules. Their nucleophilic reactions remain underexplored. This review brings attention to these reactions, whose outcome is not straightforward.
Sarah J. Wright, Muhluri H. Mthombeni, Songeziwe Ntsimango   +2 more
wiley   +1 more source

Progress in Lewis-Acid-Templated Diels–Alder Reactions

Molecules
The synthesis of natural products with complicated architectures often requires the use of segments with functional groups that can be structurally transformed with the desired stereogenic centers.
Jun Ishihara
doaj   +1 more source

Catalytic enantioselective synthesis of 2,6-disubstituted dihydropyrones by hetero-Diels-Alder reaction using chiral BINOL-Ti(IV) complex

, 2002
Highly efficient enantioselective synthesis of optically active 2,6-disubstituted dihydropyrones was easily available by hetero-Diels-Alder reaction of aldehydes in presence of 20 mol% (R)-(+)-BINOL-Ti(IV) complex under mild reaction conditions.
Jiang, YZ, Huang, YZ, Wang, B, Feng, XM, Sichuan Univ, Fac Chem, Sichuan Key LGreen Chem & Technol, Chengdu 610064, Peoples R China., Feng, XM, Zhang, GL   +5 more
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Computational analysis of the enantioselectivity of diels-alder reactions involving chiral cationic oxazaborolidinium catalyst / Nasr Y.M. Omar [PDF]

, 2011
This thesis is divided into six chapters. In the first chapter, the results of standard high-performance computing (HPC) benchmarks are presented in order to assess the performance characteristics of the various hardware and software components of an ...
Nasr, Y. M. O.
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