Results 101 to 110 of about 66,029 (249)

Preparation and Reaction Chemistry of Novel Silicon-Substituted 1,3-Dienes

Molecules, 2015
2-Silicon-substituted 1,3-dienes containing non transferrable groups known to promote transmetallation were prepared by Grignard chemistry and enyne metathesis.
Partha P. Choudhury, Mark E. Welker
doaj   +1 more source

Synthesis and use of a stable aminal derived from TsDPEN in asymmetric organocatalysis [PDF]

, 2010
A stable aminal formed stereoselectively from (R,R)-N-tosyl-1,2-diphenyl-1,2-ethylenediamine (TsDPEN) is capable of asymmetric organocatalysis of Diels-Alder and alpha-amination reactions of ...
Clarkson, Guy J., Gosiewska, Silvia, Soni, Rina, Wills, Martin   +3 more
core   +1 more source

Synthesis of 3-Alkenyl-1-azaanthraquinones via Diels-Alder and Electron Transfer Reactions

Molecules, 2002
A convenient route to 3-alkenyl-1-azaanthraquinones via a hetero Diels-Alder reaction between an azadiene and naphthoquinone, a free radical chlorination and an electron transfer reaction is reported.
Patrice Vanelle, Vincent Rémusat, Pascal Rathelot   +2 more
doaj   +1 more source

Mechanochromic Organic Materials: Molecular Mechanisms and Multidimensional Applications

Advanced Physics Research, EarlyView.
Mechanochromic (MC) organic materials change color in response to mechanical force. This review elucidates the molecular mechanisms (e.g., aggregation‐induced emission, AIE) and explores their multidimensional applications in sensors, anti‐counterfeiting, biomedical devices, and structural health monitoring, providing a roadmap for future smart ...
Xiaozhe Yin, Guoliang Niu, Yu Wang, Angela Wittmann, Huiyang Gou, Lang Jiang   +5 more
wiley   +1 more source

High-level Computational Study of the Site-, Facial- and Stereoselectivities for the Diels-Alder Reaction Between o-Benzoquinone and Norbornadiene

Molecules, 2000
Ab initio and DFT quantum chemical calculations have been applied to a study of the Diels-Alder reaction of o-benzoquinone as diene and norbornadiene as dienophile.
Ronald N. Warrener, Martin R. Johnston, Davor Margetic   +2 more
doaj   +1 more source

Synthesis and Photophysical Characterization of Axially Functionalized Silicon(IV) Naphthalocyanines with Phototheranostic Potential

ChemistryEurope, EarlyView.
In this study, the synthesis and detailed photophysical characterization of SiNcs functionalized with structurally diverse axial ligands designed to enhance solubility and evaluate photophysical properties are reported. The lead compound, SiNc 3‐PP, demonstrates photothermal conversion efficiency of 62.1% and pronounced photoacoustic contrast at 810 nm,
Pedro M. R. Santos, Benjamin Proto, Debalina Mondal, Alicia Voge, Christine Hoskin, Hanyi Weng, Inês R. M. Santos, Kevin Stamplecoskie, João P. C. Tomé, Juan Chen, Nahyun Kwon, Gang Zheng   +11 more
wiley   +1 more source

Introducing the Cis‐2,3‐Bis(trifluoromethyl)cyclopropyl Chemotype: Late‐Stage Installation and Stereoelectronic Properties

ChemistryEurope, EarlyView.
The cis‐2,3‐bis(trifluoromethyl)cyclopropyl chemotype is introduced. The steric demand of this motif is intermediate between that of the heptafluoroisopropyl and prefluorotertbutyl groups; yet, it induces significantly less lipophilicity than these due to its facial polarity.
Daniel Gaviña, Zeyu Feng, David Herrero, Martin Simon, Christopher Golz, Manuel Alcarazo   +5 more
wiley   +1 more source

Synthesis of polycyclic phosphonates via an intramolecular Diels-Alder reaction of 2-benzoylbenzalaldehyde and alkenyl phosphites [PDF]

, 2019
Kenji Yamana, Hirofumi Nakano
openalex   +1 more source

Synthesis and Isolation of Bismuth Scorpionate Complexes: Toward Bond Activation via Bismuth‐Ligand Cooperation

Chemistry – A European Journal, EarlyView.
ABSTRACT Over the past twenty years, main group chemistry has significantly expanded its scope to include reactivities once considered the exclusive domain of transition metals. Among the emerging concepts, element‐ligand cooperation has proven to be a powerful strategy for enabling bond activation reactions but remains relatively unexplored for ...
Lennart Hensle, Viktoria H. Gessner
wiley   +1 more source

The Total Synthesis of (–)-Scabrolide A [PDF]

, 2020
The first total synthesis of the norcembranoid diterpenoid scabrolide A is disclosed. The route begins with the synthesis of two chiral pool-derived fragments, which undergo a convergent coupling to expediently introduce all 19 carbon atoms of the ...
Hafeman, Nicholas J., Loskot, Steven A., Pritchett, Beau P., Reimann, Christopher E., Stoltz, Brian M., Virgil, Scott C.   +5 more
core