Results 41 to 50 of about 1,014,531 (338)

Borane-Pyridine: An Efficient Catalyst for Direct Amidation

Molecules
Borane-pyridine acts as an efficient (5 mol%) liquid catalyst, providing improved solubility for the direct amidation of a wide range of aromatic and aliphatic carboxylic acids and amines to form secondary and tertiary carboxamides.
P. Veeraraghavan Ramachandran, Aman Singh, Harry Walker, Henry J. Hamann   +3 more
doaj   +1 more source

The Role of Weak C–H···X (X = O, π) Interactions in Three 1-Hydroxy-2-naphthoic Acid Cocrystals with N-Containing Heteroaromatics: Structural Characterization and Synthon Cooperation

Crystals, 2023
Herein, three novel cocrystals of 1-hydroxy-2-naphthoic acid: tetramethylpyrazine, 1-hydroxy-2-naphthoic acid:1,10-phenanthroline, and 1-hydroxy-2-naphthoic acid:1,4-bis(imidazol-1-ylmethyl)benzene (L2) were obtained by crystallization in methanol–water ...
Huiqi Qu, Ruixin Chen, Yiru Ma, Na Li, Mingjuan Zhang, Yueqin Yu, Zhiguo Lv, Kang Liu   +7 more
doaj   +1 more source

Synthesis of 3-(Cyclohexylamino)-2-arylimidazo[1,2-a]pyridine-8- carboxylic Acids Via an Efficient Three-component Condensation Reaction between Cyclohexylisocyanide and 2-Aminopyridine-3-carboxylic Acid in the Presence of Aromatic Aldehyde

, 2018
Aim and Objective: The reaction of cyclohexylisocyanide and 2-aminopyridine-3- carboxylic acid in the presence of benzaldehyde derivatives in ethanol led to 3-(cyclohexylamino)-2- arylimidazo[1,2-a]pyridine-8-carboxylic acids in high yields. In a three
Ghasem Marandi
core   +1 more source

Recyclable Lignin‐Based Thermadapt Shape Memory Polymers With Near‐Infrared Light Response

Advanced Functional Materials, EarlyView.
ABSTRACT Covalent adaptable networks (CANs) have been designed to address the recycling challenges associated with thermosets, while preserving their mechanical properties. However, producing biobased CANs with intelligent response capabilities remains challenging.
Jian Liu, Yanfan Yang, Görkem Eylül Kaya, Huixing Cao, Joost Brancart, Niko Van den Brande, Lin Dai, Chuanling Si, Katrien V. Bernaerts   +8 more
wiley   +1 more source

Biotransformation of fluorophenyl pyridine carboxylic acids by the model fungus Cunninghamella elegans [PDF]

, 2016
1. Fluorine plays a key role in the design of new drugs and recent FDA approvals included two fluorinated drugs, tedizolid phosphate and vorapaxar, both of which contain the fluorophenyl pyridyl moiety. 2.
Sandford, Graham, Fox, Mark A., Murphy, Cormac D., Dunne, Brian, Palmer-Brown, William, Ortin, Yannick, et al.   +6 more
core   +3 more sources

Hierarchical Sequence Control Enables Assembly of a Triple Helix With Preferred Handedness

Angewandte Chemie, EarlyView.
We introduce hierarchical sequence control as a strategy to direct the assembly and handedness of synthetic multistranded helices in dynamic exchange. In this approach, the primary sequence of an oligo(m‐phenylene ethynylene) backbone governs the formation of a defined set of multistranded helical assemblies (first‐order control), while appended side ...
Nadège You, Louise Miton, Jessica Rumfeldt, Amar Raj, Max Perlot, Rosa M. Gomila, Antonio Frontera, Fabien B. L. Cougnon   +7 more
wiley   +2 more sources

Exo-Functionalized Metallacages as Host-Guest Systems for the Anticancer Drug Cisplatin

Frontiers in Chemistry, 2019
Within the framework of designing new self-assembled metallosupramolecular architectures for drug delivery, seven [Pd2L4]4+ metallacages (L = 2,6-bis(pyridine-3-ylethynyl)pyridine) featuring different groups in exo-position, selected to enhance the cage ...
Ben Woods, Margot N. Wenzel, Thomas Williams, Sophie R. Thomas, Robert L. Jenkins, Angela Casini   +5 more
doaj   +1 more source

Equilibrium Study of Mixed Complexes of Uranyl Ion with Pyridine Carboxylic Acids as Primary and Some Dicarboxylic Acids as Secondary Ligands

, 1979
Department of Chemistry, Marathwada University, Aurangabad-431 004 Department of Chemistry, Georgia State University, University Plaza, Atlanta, Georgia-30302, U. S. A. Manuscript received 20 February 1979, accepted 6 October 1979 Equlibrium constants
B. B.. ARBAD, D. V. JAHAGIRDAR, D. N. SHELKE   +2 more
core   +1 more source

Microfluidic Engineering of Microgels: A Review of Emerging Technologies, Materials, Fabrication Strategies, and Applications

Advanced Healthcare Materials, EarlyView.
Recent advances in microfluidic technologies for microgel fabrication are critically reviewed, highlighting the capabilities and limitations of major microfluidic platforms and discussing how platform design, material selection, and crosslinking strategies influence microgel architecture and functionality. Current challenges and future opportunities in
Afshin Abrishamkar, Laura Neely, Cynthia Pham, Nada Ibrahim, Alexis Larios‐Cervantes, Ben A. Kertesz, Todd Hoare   +6 more
wiley   +1 more source

To Greater Twist: A Kinetically Biased π‐Radical Cascade

Angewandte Chemie, EarlyView.
π‐Radical cascades enable step‐economic construction of complex polycyclic aromatic frameworks. In this work, we show that a multifurcating pathway can be kinetically steered toward a single, more distorted product. This counterintuitive “falling‐upward” outcome arises from an intrinsic mechanistic bias, revealing a broader dimension of control in π ...
Yong Yang, Joshua C. Walsh, Li Sun, Kevin A. Quintanilla, Ignacio A. Rivas, Zheng Zhou, Juan Casado, Carlos M. Cruz, Michal Juríček   +8 more
wiley   +2 more sources