Results 71 to 80 of about 2,093,167 (240)

REACTION OF 4-METHYL- 1 2,4-TRIAZOLINE- 3,5-DIONE WITH DI AND TRI-SUBSTITUTED STYRENES S.E. Mallakpour* and G.B. Butler** [PDF]

Journal of Sciences, Islamic Republic of Iran, 1993
2,4,6-Triisopropylstryrene was synthesized in a single step via the Witting Reaction from the corresponding aldehyde. The reaction of three styrene's derivatives, 2,6-dimethylstyrene, 2,4,6-trimethylstyrene, and 2,4,6- triisopropylstyrene with 4-methyl-l,
doaj  

Focused Ultrasound-Mediated Release of Bone Morphogenetic Protein 2 from Hydrogels for Bone Regeneration

Gels
An ultrasound-responsive hydrogel system was developed that provides on-demand release when stimulated by focused ultrasound (fUS). Diels–Alder cycloadducts crosslinked polyethylene glycol (PEG) hydrogels and underwent a retrograde Diels–Alder reaction ...
Tyus J. Yeingst, Angelica M. Helton, Ferdousi S. Rawnaque, Julien H. Arrizabalaga, Dino J. Ravnic, Julianna C. Simon, Daniel J. Hayes   +6 more
doaj   +1 more source

Ultrastable Self‐Cross‐linkable Electro‐Optic Materials Based on a Bisanthracene Scaffold

Advanced Electronic Materials, EarlyView.
A novel bisanthracene‐based self‐cross‐linkable electro‐optic chromophore (TD2) is developed. TD2 exhibits a high r33 of 141 pm/V and a cross‐linked Tg up to 195 °C, retaining 99.75% of its initial EO response after 500 h at 85 °C, showing record‐high thermal stability for single‐molecule self‐cross‐linking EO materials.
Xingtao Wang, Zhifan Liu, Qinghua Yang, Jiayan Xu, Lin Li, Fenggang Liu, Shengyu Cong   +6 more
wiley   +1 more source

Machine Learning Interatomic Potentials for Energy Materials: Architectures, Training Strategies, and Applications

Advanced Energy Materials, EarlyView.
Machine learning interatomic potentials bridge quantum accuracy and computational efficiency for materials discovery. Architectures from Gaussian process regression to equivariant graph neural networks, training strategies including active learning and foundation models, and applications in solid‐state electrolytes, batteries, electrocatalysts ...
In Kee Park, Saeed Pourasad, Jinhong Mun, Arunkumar Chitteth Rajan, Tae Hyeon Park, Anand Rohit, Mohammad Zafari, Tan‐Lien Pham, Eunjae Jung, Bonseung Koo, Miran Ha, Gi Beom Sim, Hyun Gyu Park, Won Woong Choi, Kwanghyeon Jo, Soohaeng Yoo Willow, David ChangMo Yang, Chang Woo Myung, Geunsik Lee, Kwang S. Kim   +19 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

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

Towards the total synthesis of vinigrol [PDF]

, 2006
Virigrol is a unique tricyclic diterpene containing the unprecedented decahydro-1, 5- butanonapathalene framework and with these unusual structural features it also has varied biological activity, making it a challenging synthetic target. Despite various
Johnstone, Lisa
core  

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

Reactivity of substituted 4-Pyridones in normal and inverse demand Diels-Alder cycloaddition [PDF]

, 2009
The synthesis of the decahydroquinoline ring system has been explored extensively due to its appearance within many biologically active natural alkaloids. New compounds containing such a moiety are being discovered on an ongoing basis.
NC DOCKS at The University of North Carolina Wilmington, MacNevin, Christopher J.   +1 more
core  

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