Results 81 to 90 of about 2,240,218 (271)

Synthesis of an Epoxy Monomer from Bio-Based 2,5-Furandimethanol and Its Toughening via Diels-Alder Reaction

, 2017
A bio-based epoxy 2,5-bis [(2-oxiranylmethoxy)-methyn-furan (BOF) has been synthesized from 2,5-furandimethanol and toughened by its Diels Alder (DA) reaction adduct DA-BOF, which contained a flexible pendant chain.
Zhu, Jin, Jin Zhu, Shen, Xiaobin, Wang, Jinggang, Jinyue Dai, Dai, Jinyue, Xiaobin Shen, Xiaoqing Liu, Jinggang Wang, Liu, Xiaoqing   +9 more
core   +1 more source

Intelligent Polymer Electrolytes for Next‐Generation Zinc‐Based Energy Storage Devices

Advanced Science, EarlyView.
Intelligent polymer electrolytes are organized into a three‐level hierarchy that advances zinc‐based energy storage from passive ion conduction toward active, adaptive, and intelligent operation. Molecular regulation of Zn+ coordination, water activity, desolvation, ion flux, and interfaces underpins adaptive self‐healing, anti‐freezing, adhesion, and ...
Sanath Kumar, Jhansirani Kesavan, Muhammad Asim, Atul Verma, Yen‐Pei Fu   +4 more
wiley   +1 more source

Chiroptical Switching by Stereoselective Photochemical Sigmatropic Rearrangements: Experimental Realization of Calderoselectivity

Angewandte Chemie, EarlyView.
Calderoselectivity is established as a stereochemical principle for sigmatropic rearrangements. A homoannulene‐based chiroptical photoswitch undergoes a photochemical [1,11] sigmatropic rearrangement with control of the acyl movement on top of the cyclic π system.
Anne Krenkel, Frederike Beyer, Malte Feßner, Trung Tran Ngoc, Tobias Rüffer, Dominik Hornig, Martin Breugst, Christian Merten, Johannes F. Teichert   +8 more
wiley   +2 more sources

Enantio- and periselective nitroalkene Diels-Alder reaction

, 2012
The periselective Diels-Alder reaction of 5-substituted pentamethylcyclopentadienes and nitroethylene has been realized by helical-chiral hydrogen bond donor catalysts.
Takenaka, Norito, Narcis, Maurice J, Captain, Burjor, Sprague, Daniel J   +3 more
core   +1 more source

Membrane‐Targeted Nanoparticles for Neuronal Photomodulation

Advanced Science, EarlyView.
Immobilizing gold nanoparticles on the neural interface using a bioorthogonal approach generates localized heat upon exposure to near‐infrared light, temporarily inhibiting primary neuronal activity without damaging the cells. This precise placement and retention of nanoparticles at the cell membrane expand the strategies for non‐invasive neural ...
Ane Escobar, Ana Sánchez‐Iglesias, Davide Bello, Miriam Feijoo Barriga, Alex M. Ascensión, Laura Rodríguez‐Gómez, David Otaegui‐Bichot, Francisco Javier Gil‐Bea, Monica Carril, Marek Grzelczak   +9 more
wiley   +1 more source

Simple 3D printed stainless steel microreactors for online mass spectrometric analysis

Heliyon, 2019
A simple flow chemistry microreactor with an electrospray ionization tip for real time mass spectrometric reaction monitoring is introduced. The microreactor was fabricated by a laser-based additive manufacturing technique from acid-resistant stainless ...
Gianmario Scotti, Sofia M.E. Nilsson, Ville-Pekka Matilainen, Markus Haapala, Gustav Boije af Gennäs, Jari Yli-Kauhaluoma, Antti Salminen, Tapio Kotiaho   +7 more
doaj   +1 more source

A Comprehensive Review on Additive Manufacturing of Smart Components: Technologies, Applications, and Future Scope

Advanced Intelligent Systems, EarlyView.
How can additive manufacturing enable components that sense, adapt, heal, and power themselves? This review synthesizes recent advances in smart functionalities, manufacturing technologies, and intelligent design strategies, revealing a pathway toward fully integrated, autonomous, and multifunctional systems across diverse engineering sectors. Additive
Aiswarya Rony, P. M. Ushasree, Michael Short, Jinoop Arackal Narayanan   +3 more
wiley   +1 more source

Diels–Alder reactions of myrcene using intensified continuous-flow reactors

Beilstein Journal of Organic Chemistry, 2017
This work describes the Diels–Alder reaction of the naturally occurring substituted butadiene, myrcene, with a range of different naturally occurring and synthetic dienophiles.
Christian H. Hornung, Miguel Á. Álvarez-Diéguez, Thomas M. Kohl, John Tsanaktsidis   +3 more
doaj   +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

Asymmetric hetero Diels-Alder as an access to carbacephams [PDF]

, 2001
A short and efficient asymmetric synthesis of the (6R,7S)-7-tert-butoxycarbonylamino-2-ketocarbacepham is described. The key step involves the hetero Diels-Alder reaction of the benzylimine derived from the enantiomer of Garner's aldehyde with ...
Corzana, F. [0000-0001-5597-8127], Peregrina, J.M. [0000-0003-3778-7065], Avenoza, A. [0000-0002-5465-3555], Busto, J.H. [0000-0003-4403-4790], Zurbano, M.M. [0000-0001-6370-3537], Cativiela, C., Peregrina, J.M., Busto, J.H., Avenoza, A., Corzana, F., Zurbano, M.M., Carlos Cativiela, María M. Zurbano, Jesús H. Busto, Jesús M. Peregrina, Alberto Avenoza, Francisco Corzana   +16 more
core   +1 more source