Results 171 to 180 of about 2,480,939 (303)

Mechanochemistry and Eco-Bases for Sustainable Michael Addition Reactions. [PDF]

Molecules, 2022
Lock Toy Ki Y, Garcia A, Pelissier F, Olszewski TK, Babst-Kostecka A, Legrand YM, Grison C.   +6 more
europepmc   +1 more source

Unusual Swelling Behavior of Hydrogels Modified with Spiropyran as Appendage or Crosslinker

Advanced Functional Materials, EarlyView.
Not so innocent after all—spiropyran crosslinkers in methylenebisacrylamide‐crosslinked poly(acrylamide‐co‐acrylic acid) hydrogels increase crosslinking density, but also, counterintuitively, increase swelling. Charge complexation, cooperative chemo‐mechanical effects, and aggregation may explain these observations.
Michael M. Lerch, Ankita Shastri, Thomas B. H. Schroeder, Amos Meeks, Shucong Li, Anna V. Shneidman, Michael Aizenberg, Joanna Aizenberg   +7 more
wiley   +1 more source

Competing Michael/Anti-Michael Addition of Silyl Ketene Acetals to β-Nitrostyrenes Incorporating an Electron-Withdrawing Group. [PDF]

J Org Chem
Martínez-Aguirre MA, Cruz-Aguilar DA, Hernández-Huerta E, López-Barba D, Ballinas-Indili R, Rosales-Amezcua SC, Álvarez-Toledano C, Hernández-Rodríguez M.   +7 more
europepmc   +1 more source

A DFT Investigation of the Reactivity of Guanidinium Salts in Tandem aza-Michael Addition/Intramolecular Cyclization. [PDF]

Molecules, 2023
Glasovac Z, Barešić L, Margetić D.
europepmc   +1 more source

Using the Photostationary State of Arylazopyrazoles to Control Phase Transitions of Liquid Crystals

Advanced Functional Materials, EarlyView.
A series of new arylazopyrazole photoswitches is designed as dopants for liquid crystalline materials. Unprecedented, the distribution of photoisomers at the photostationary state upon irradiation with light of specific wavelengths (365, 460, 520 nm) is used to control the liquid crystalline phase transitions under isothermal conditions, including ...
Tobias Thiele, Kristina Hrybenko, Christoph Wölper, Michael Giese   +3 more
wiley   +1 more source

Bifunctional Iminophosphorane Superbases Enable the Highly Enantioselective Sulfa-Michael Addition to Fully Substituted Cyclopropene Carboxylic Acid Derivatives. [PDF]

J Am Chem Soc
Yuan K, Ristache AI, Kosc SM, Crumpton A, Dixon DJ.   +4 more
europepmc   +1 more source

Spatially Tailorable Liquid Crystalline Elastomer Alignment During Digital Light Process 3D Printing

Advanced Functional Materials, EarlyView.
Here, we report the fabrication of 3D printable liquid crystalline elastomer (LCE) structures with spatially tailorable alignment domains within the same layer. This work addresses the long‐standing challenge of preparing complex 3D LCE architectures with patterned functional domains to achieve nonlinear deformations. Fabrication of multi‐domains in 3D
Adam Bischoff, Saman Jamshididana, Zach Miller, Kassandra Hernandez, Nicolas Gonsalves, Andre Olarra, Elliot Yoo, Jeremy A. Herman, Devin J. Roach   +8 more
wiley   +1 more source

Biocatalyzed aza-michael addition <i>via</i> continuous flow technology: a game-changer for the facile synthesis of <i>N-</i>alkylated pyrazole derivatives. [PDF]

RSC Adv
Du LH, Yan BL, Xue MM, Wang L, Luo XP.
europepmc   +1 more source

Biocatalytic decarboxylative Michael addition for synthesis of 1,4-benzoxazinone derivatives. [PDF]

Sci Rep, 2022
Bavandi H, Shahedi M, Habibi Z, Yousefi M, Brask J, Mohammadi M.   +5 more
europepmc   +1 more source

Membrane Wrapping for High Capacity and Rapidly Switchable Adhesives

Advanced Functional Materials, EarlyView.
A membrane‐wrapping mechanism enables high‐capacity, rapidly switchable adhesion by coupling suction, friction, and adhesion. Broadband performance is achieved in dry and underwater conditions, allowing fast, reversible manipulation of objects of diverse sizes and shapes, from delicate eggs and berries to flat, complex, or heavy objects. These outcomes
Yeunhee Kim, Camryn A. Mills, Michael D. Bartlett   +2 more
wiley   +1 more source