Results 61 to 70 of about 27,574 (257)

Implantable Drug Delivery Systems for Skeletal Muscles and Eyes

Advanced NanoBiomed Research, EarlyView.
This review highlights the different types of recent implantable drug delivery systems (IDDS) fabricated for a use with skeletal muscles, and with eyes. It presents the developments already made and the current research directions, showing the evolution of IDDS and their great diversity.
Serge Ostrovidov, Murugan Ramalingam, Hongkai Wu, Toshinori Fujie, Yukinari Nakamura, Takeshi Hori, Yuji Nashimoto, Xuetao Shi, Hirokazu Kaji   +8 more
wiley   +1 more source

Growth of Fullerene Fragments Using the Diels-Alder Cycloaddition Reaction: First Step towards a C60 Synthesis by Dimerization

Molecules, 2013
Density Functional Theory has been used to model the Diels-Alder reactions of the fullerene fragments triindenetriphenilene and pentacyclopentacorannulene with ethylene and 1,3-butadiene.
Julio A. Alonso, Martha Mojica, Francisco Méndez   +2 more
doaj   +1 more source

Enantio- and Periselective Nitroalkene Diels-Alder Reactions Catalyzed by Helical-Chiral Hydrogen Bond Donor Catalysts

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, Maurice J. Narcis, Norito Takenaka   +2 more
doaj   +1 more source

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
doaj   +1 more source

Ultrasonic-Assisted Diels–Alder Reaction Exfoliation of Graphite into Graphene with High Resveratrol Adsorption Capacity [PDF]

, 2021
Jinxing Zhang, Qi Ouyang, Qilin Gui, Xiaonong Chen   +3 more
openalex   +1 more source

Anthracen- und Anthrachinon-Oligomere mit ortho-Cyclophanverknüpfung durch wiederholte Diels-Alder-Reaktion von 1,2,5,6-Tetra-exo-methylencyclooctan

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, Werner Wohlfarth, Klaus Müllen   +2 more
doaj   +1 more source

On the Question of the Course of the Hetero Diels–Alder Reactions Between N-(2,2,2-Trichloroethylidene)Carboxamides and Dicyclohexylcarbodiimide: A New Case of the Stepwise Zwitterionic Cycloaddition Process

Molecules
The regioselectivity and the molecular mechanism of the Diels–Alder reactions between N-(2,2,2-trichloroethylidene)carboxamides and dicyclohexylcarbodiimide were explored based on the ωB97xd/6-311G(d) (PCM) calculations.
Przemysław Woliński, Karolina Zawadzińska-Wrochniak, Ewa Dresler, Radomir Jasiński   +3 more
doaj   +1 more source

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

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

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